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Cheap flights from Boston to St. Louis (BOS - STL) from $60

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
BOS — STL
may. 21 — may. 281
From?
To?
mar. 5/21
mar. 5/28
1 adult, Economy
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The best prices from Boston Logan Intl to Lambert-St Louis are usually found in February or January, booked 81 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

Cheap flight deals from Boston to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated mayo 16, 2024.

Popular in

June

Cheapest in

February

Round-trip from

$320

One-way from

$99
High demand for flights, 14% potential price rise
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Best time to find cheap flights, 23% potential price drop
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From Boston Logan Intl to Lambert-St Louis
Search Deals
One-way flight from Boston Logan Intl to Lambert-St Louis
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What is the cheapest day to fly round-trip from Boston to St. Louis?

Sunday flights are found to be more expensive to fly from Boston to St. Louis. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St. Louis.

How far in advance should I book a flight from Boston to St. Louis?

To save up to 87% on this flight, we recommend booking at least 30 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Boston to St. Louis from $554 1-2 weeks out and tickets from $644 for flights departing within the next 72 hours.

What is the cheapest month to fly from Boston to St. Louis?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, February can be a great choice for travel to St. Louis. Flights to St. Louis from Boston in February are about $446 on average during February, but can be found for as low as $158.

When is the cheapest time to fly from Boston to St. Louis (BOS - STL)?

It’s typically best to fly out from Boston to St. Louis in the evening. Doing so could potentially save you 26% on the flight price compared to flying in the afternoon, which is usually more expensive.

Cheap Frontier flights from Boston to St. Louis

Explore cheap flight options specifically provided by Frontier for the route between Boston and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
Consider these cheap Frontier flights we've found departing from Boston to St. Louis. Deals update often to give you more flight options matching your criteria
sáb. 6/111:42 amBOS - STL
1 stop20h 26mFrontier
mar. 6/47:44 pmSTL - BOS
1 stop11h 32mFrontier
Deal found 5/15$100
mié. 5/299:52 amBOS - STL
1 stop22h 16mFrontier
mar. 6/47:44 pmSTL - BOS
1 stop11h 32mFrontier
Deal found 5/15$110
vie. 5/318:19 amBOS - STL
1 stop5h 01mFrontier
mar. 6/47:44 pmSTL - BOS
1 stop11h 32mFrontier
Deal found 5/15$118
vie. 5/318:19 amBOS - STL
1 stop5h 01mFrontier
mar. 6/47:44 pmSTL - BOS
1 stop11h 32mFrontier
Deal found 5/15$120
mié. 5/299:52 amBOS - STL
1 stop22h 16mFrontier
jue. 5/307:44 pmSTL - BOS
1 stop12h 20mFrontier
Deal found 5/15$128
mié. 6/129:16 amBOS - STL
1 stop22h 51mFrontier
vie. 6/147:44 pmSTL - BOS
1 stop12h 25mFrontier
Deal found 5/14$130
vie. 5/318:19 amBOS - STL
1 stop5h 01mFrontier
dom. 6/27:44 pmSTL - BOS
1 stop12h 12mFrontier
Deal found 5/16$136
mié. 6/59:16 amBOS - STL
1 stop22h 51mFrontier
dom. 6/237:44 pmSTL - BOS
1 stop11h 32mFrontier
Deal found 5/15$138
mié. 6/129:16 amBOS - STL
1 stop22h 51mFrontier
mar. 6/187:44 pmSTL - BOS
1 stop11h 32mFrontier
Deal found 5/14$143

  • One of the most popular airlines traveling from Boston to St. Louis is Frontier. Flights from Frontier traveling this route typically cost $518.80 RT. This price is typically 19% cheaper than other airlines that offer Boston to St. Louis flights. When booking this route, the cheapest RT price found was $433. Boston Logan Intl Airport is the most common Boston airport to take off from when flying to St. Louis. Lambert-St Louis Airport is the most popular arrival airport in St. Louis. When flying from Boston to St. Louis, Frontier flights are 6% more popular than any other airline flying that same route.

Cheap Spirit Airlines flights from Boston to St. Louis

Explore cheap flight options specifically provided by Spirit Airlines for the route between Boston and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
Browse through some of the cheapest Spirit Airlines flights traveling from Boston to St. Louis. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
mié. 6/55:39 pmBOS - STL
1 stop24h 49mSpirit Airlines
mar. 6/113:23 pmSTL - BOS
1 stop29h 05mSpirit Airlines
Deal found 5/16$140
mié. 6/54:27 pmBOS - STL
2 stops26h 01mSpirit Airlines
mar. 6/1111:57 amSTL - BOS
3 stops32h 57mSpirit Airlines
Deal found 5/16$171
mar. 6/116:10 amBOS - STL
1 stop9h 13mSpirit Airlines
mar. 6/183:23 pmSTL - BOS
2 stops22h 26mSpirit Airlines
Deal found 5/14$175
mar. 6/116:10 amBOS - STL
1 stop9h 13mSpirit Airlines
mar. 6/183:23 pmSTL - BOS
2 stops17h 28mSpirit Airlines
Deal found 5/14$176
mié. 6/129:30 amBOS - STL
2 stops32h 58mSpirit Airlines
mar. 6/183:23 pmSTL - BOS
1 stop6h 45mSpirit Airlines
Deal found 5/14$177
mar. 6/116:10 amBOS - STL
1 stop9h 13mSpirit Airlines
mar. 6/183:23 pmSTL - BOS
3 stops29h 31mSpirit Airlines
Deal found 5/14$179
mié. 6/58:00 pmBOS - STL
3 stops22h 28mSpirit Airlines
mar. 6/1111:57 amSTL - BOS
3 stops32h 57mSpirit Airlines
Deal found 5/16$183
mar. 6/116:10 amBOS - STL
1 stop9h 13mSpirit Airlines
dom. 6/165:22 pmSTL - BOS
1 stop17h 09mSpirit Airlines
Deal found 5/15$184
mié. 6/54:27 pmBOS - STL
2 stops26h 01mSpirit Airlines
mar. 6/113:23 pmSTL - BOS
1 stop6h 45mSpirit Airlines
Deal found 5/16$190

  • If you’re traveling from Boston to St. Louis, one of the more common airlines traveling that route is Spirit Airlines. Boston to St. Louis flights are typically 31% cheaper than other airlines traveling the same route. Flights from Spirit Airlines typically cost $449.80 RT. The cheapest Spirit Airlines flight found for this route was $278. When traveling from Boston to St. Louis on Spirit Airlines, the most popular airport to depart from is Boston Logan Intl Airport and the most popular airport to arrive at is Lambert-St Louis Airport. When flying from Boston to St. Louis, Spirit Airlines flights are 1% more popular than any other airline flying that same route.

Cheap Boston to St. Louis flights in May & June 2024

Find cheap flight options from Boston to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on mayo 16, 2024.
Check out some of the best flight deals from Boston to St. Louis in 2024. More deals are always being added, so be sure to check back regularly.
lun. 5/278:45 amBOS - STL
2 stops7h 56mUnited Airlines
mié. 5/296:08 amSTL - BOS
1 stop6h 37mUnited Airlines
Deal found 5/15$347
sáb. 6/812:07 pmBOS - STL
3 stops29h 25mMultiple Airlines
vie. 6/149:45 amSTL - BOS
3 stops33h 35mMultiple Airlines
Deal found 5/16$348
sáb. 6/156:10 amBOS - STL
1 stop12h 18mMultiple Airlines
vie. 6/284:45 pmSTL - BOS
3 stops26h 35mMultiple Airlines
Deal found 5/15$349
mar. 5/211:00 pmBOS - STL
1 stop5h 16mDelta
mié. 6/56:00 amSTL - BOS
1 stop7h 18mDelta
Deal found 5/15$350
vie. 6/1410:41 amBOS - STL
2 stops31h 47mMultiple Airlines
vie. 6/2812:15 pmSTL - BOS
2 stops11h 23mMultiple Airlines
Deal found 5/15$351
dom. 6/27:00 amBOS - STL
Nonstop3h 10mAmerican Airlines
mié. 6/53:27 pmSTL - BOS
1 stop6h 20mAmerican Airlines
Deal found 5/15$352
jue. 6/205:45 amBOS - STL
2 stops14h 37mMultiple Airlines
jue. 6/2712:15 pmSTL - BOS
2 stops11h 23mMultiple Airlines
Deal found 5/15$353
mar. 6/257:00 amBOS - STL
Nonstop3h 07mAmerican Airlines
sáb. 6/293:27 pmSTL - BOS
1 stop6h 20mAmerican Airlines
Deal found 5/15$354
mié. 5/2910:00 amBOS - STL
1 stop8h 16mDelta
vie. 5/317:10 pmSTL - BOS
1 stop4h 55mDelta
Deal found 5/14$355

Boston to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Boston and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
Check out some of the best flight deals from Boston to St. Louis in 2024. More deals are always being added, so be sure to check back regularly.
sáb. 6/111:42 amBOS - STL
1 stop20h 26mFrontier
mar. 6/47:44 pmSTL - BOS
1 stop11h 32mFrontier
Deal found 5/15$100
mié. 5/299:52 amBOS - STL
1 stop22h 16mFrontier
mar. 6/47:44 pmSTL - BOS
1 stop11h 32mFrontier
Deal found 5/15$110
vie. 5/318:19 amBOS - STL
1 stop5h 01mFrontier
mar. 6/47:44 pmSTL - BOS
1 stop11h 32mFrontier
Deal found 5/15$118
vie. 5/318:19 amBOS - STL
1 stop5h 01mFrontier
mar. 6/47:44 pmSTL - BOS
1 stop11h 32mFrontier
Deal found 5/15$120
mié. 5/299:52 amBOS - STL
1 stop22h 16mFrontier
jue. 5/307:44 pmSTL - BOS
1 stop12h 20mFrontier
Deal found 5/15$128
mié. 6/129:16 amBOS - STL
1 stop22h 51mFrontier
vie. 6/147:44 pmSTL - BOS
1 stop12h 25mFrontier
Deal found 5/14$130
vie. 5/318:19 amBOS - STL
1 stop5h 01mFrontier
dom. 6/27:44 pmSTL - BOS
1 stop12h 12mFrontier
Deal found 5/16$136
mié. 6/59:16 amBOS - STL
1 stop22h 51mFrontier
dom. 6/237:44 pmSTL - BOS
1 stop11h 32mFrontier
Deal found 5/15$138
mié. 6/55:39 pmBOS - STL
1 stop24h 49mSpirit Airlines
mar. 6/113:23 pmSTL - BOS
1 stop29h 05mSpirit Airlines
Deal found 5/16$140

Non-stop flights to St. Louis from Boston

Discover non-stop flight options from Boston to St. Louis. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
Take a look at some of the direct flights traveling from Boston to St. Louis in the near future. Select from other flights from Boston to St. Louis by using the search form above.
mar. 6/184:14 pmBOS - STL
Nonstop3h 00mAmerican Airlines
mié. 6/266:51 pmSTL - BOS
Nonstop2h 43mAmerican Airlines
Deal found 5/15$311
jue. 5/3011:02 amBOS - STL
Nonstop3h 07mAmerican Airlines
mié. 6/56:51 pmSTL - BOS
Nonstop2h 43mAmerican Airlines
Deal found 5/15$312
mar. 7/24:14 pmBOS - STL
Nonstop3h 00mAmerican Airlines
jue. 7/46:51 pmSTL - BOS
Nonstop2h 43mAmerican Airlines
Deal found 5/15$313
lun. 6/311:02 amBOS - STL
Nonstop3h 07mAmerican Airlines
mié. 6/56:51 pmSTL - BOS
Nonstop2h 43mAmerican Airlines
Deal found 5/15$314
sáb. 8/177:00 amBOS - STL
Nonstop3h 14mAmerican Airlines
mar. 8/2711:05 amSTL - BOS
Nonstop2h 38mAmerican Airlines
Deal found 5/15$316
mié. 5/2911:02 amBOS - STL
Nonstop3h 07mAmerican Airlines
mar. 6/41:40 pmSTL - BOS
Nonstop2h 49mAmerican Airlines
Deal found 5/15$317
mar. 6/114:14 pmBOS - STL
Nonstop3h 00mAmerican Airlines
mié. 6/126:51 pmSTL - BOS
Nonstop2h 43mAmerican Airlines
Deal found 5/15$326
mar. 6/47:00 amBOS - STL
Nonstop3h 10mAmerican Airlines
mié. 6/126:51 pmSTL - BOS
Nonstop2h 43mAmerican Airlines
Deal found 5/15$329
mar. 8/67:00 amBOS - STL
Nonstop3h 14mAmerican Airlines
lun. 8/1211:05 amSTL - BOS
Nonstop2h 38mAmerican Airlines
Deal found 5/15$331

Boston to St. Louis flights leaving soon

Find last-minute flight options from Boston to St. Louis for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
Have a look at some of the last-minute flights available departing from Boston to St. Louis. Users should examine the flight details to ensure there are no surprises.
mar. 5/211:00 pmBOS - STL
1 stop5h 16mDelta
mié. 6/56:00 amSTL - BOS
1 stop7h 18mDelta
Deal found 5/15$350
jue. 5/236:10 amBOS - STL
1 stop12h 19mMultiple Airlines
dom. 5/266:20 pmSTL - BOS
1 stop15h 13mMultiple Airlines
Deal found 5/14$373
jue. 5/236:00 amBOS - STL
2 stops13h 40mMultiple Airlines
dom. 5/266:20 pmSTL - BOS
1 stop15h 13mMultiple Airlines
Deal found 5/14$386
sáb. 5/2511:29 amBOS - STL
2 stops20h 39mFrontier
mar. 5/287:44 pmSTL - BOS
1 stop12h 08mFrontier
Deal found 5/16$388
sáb. 5/258:59 pmBOS - STL
3 stops19h 31mMultiple Airlines
mar. 5/287:30 amSTL - BOS
3 stops28h 33mMultiple Airlines
Deal found 5/16$394
jue. 5/236:10 amBOS - STL
1 stop12h 19mMultiple Airlines
dom. 5/266:20 pmSTL - BOS
1 stop15h 13mMultiple Airlines
Deal found 5/14$398
sáb. 5/2510:27 pmBOS - STL
2 stops20h 02mMultiple Airlines
mar. 5/287:30 amSTL - BOS
3 stops28h 33mMultiple Airlines
Deal found 5/16$409
jue. 5/236:00 amBOS - STL
2 stops13h 40mMultiple Airlines
dom. 5/266:20 pmSTL - BOS
2 stops19h 02mMultiple Airlines
Deal found 5/14$410
jue. 5/2311:02 amBOS - STL
Nonstop3h 07mAmerican Airlines
jue. 5/235:08 pmSTL - BOS
1 stop5h 47mAmerican Airlines
Deal found 5/15$411

One-way flights to St. Louis from Boston

Search for one-way flight options from Boston to St. Louis. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
Take a look at some of the one-way flights we've detected from Boston to St. Louis. Users in need of a round-trip flight from Boston to St. Louis instead should update the search form at the top of page.
mié. 6/59:16 amBOS - STL
1 stop22h 51mFrontier
Deal found 5/15$60
mié. 8/289:16 amBOS - STL
1 stop22h 46mFrontier
Deal found 5/15$61
mié. 6/58:00 pmBOS - STL
2 stops22h 28mSpirit Airlines
Deal found 5/15$71
jue. 6/66:10 amBOS - STL
1 stop12h 18mSpirit Airlines
Deal found 5/15$80
lun. 6/310:27 pmBOS - STL
2 stops16h 10mSpirit Airlines
Deal found 5/15$81
sáb. 6/86:10 amBOS - STL
1 stop12h 18mSpirit Airlines
Deal found 5/15$82
lun. 6/109:16 amBOS - STL
1 stop22h 51mFrontier
Deal found 5/15$85
lun. 7/812:32 pmBOS - STL
1 stop9h 10mFrontier
Deal found 5/15$86
mié. 6/512:07 pmBOS - STL
3 stops30h 21mSpirit Airlines
Deal found 5/15$88

Find flights from Boston to St. Louis within your budget

Customize your flight search to find flights from Boston to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$100 - $269

Route

Depart

Return

Price

Boston Logan IntlLambert-St Louis

BOS - STL

BOSSTL

Boston Logan Intl

sáb. 6/1

1 stop20h 26m

Lambert-St Louis

mar. 6/4

1 stop11h 32m

$100

Boston Logan IntlLambert-St Louis

BOS - STL

BOSSTL

Boston Logan Intl

mié. 5/29

1 stop22h 16m

Lambert-St Louis

mar. 6/4

1 stop11h 32m

$110

Boston Logan IntlLambert-St Louis

BOS - STL

BOSSTL

Boston Logan Intl

vie. 5/31

1 stop5h 01m

Lambert-St Louis

mar. 6/4

1 stop11h 32m

$118

Boston Logan IntlLambert-St Louis

BOS - STL

BOSSTL

Boston Logan Intl

vie. 5/31

1 stop5h 01m

Lambert-St Louis

mar. 6/4

1 stop11h 32m

$120

Boston Logan IntlLambert-St Louis

BOS - STL

BOSSTL

Boston Logan Intl

mié. 6/5

1 stop24h 49m

Lambert-St Louis

mar. 6/11

1 stop29h 05m

$140

Boston Logan IntlLambert-St Louis

BOS - STL

BOSSTL

Boston Logan Intl

mar. 6/11

1 stop9h 13m

Lambert-St Louis

mar. 6/18

1 stop11h 32m

$144

Boston Logan IntlLambert-St Louis

BOS - STL

BOSSTL

Boston Logan Intl

mié. 5/29

1 stop5h 50m

Lambert-St Louis

vie. 5/31

1 stop4h 55m

$208

Boston Logan IntlLambert-St Louis

BOS - STL

BOSSTL

Boston Logan Intl

jue. 5/30

1 stop8h 27m

Lambert-St Louis

mié. 6/5

Nonstop2h 43m

$267

Boston Logan IntlLambert-St Louis

BOS - STL

BOSSTL

Boston Logan Intl

jue. 5/30

1 stop5h 08m

Lambert-St Louis

mié. 6/5

1 stop7h 08m

$269

Flights are sorted by cheapest first

Deals found on 5/15

When is the best time to book a flight from Boston to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Boston to St. Louis. Price data was last updated on May 10, 2024.
To ensure you get the cheapest price possible for a flight from Boston to St. Louis, you should look to book at least 81 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

When is the cheapest time to fly from Boston to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Boston to St. Louis. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Boston to St. Louis flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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Average price of flights to St. Louis by month

Plan your trip from Boston to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Boston to St. Louis is currently $77 while a round-trip flight costs $164. Price data was last updated on May 12, 2024.

Currently, September is the cheapest month in which you can book a flight from Boston to St. Louis (average of $320). Flying from Boston to St. Louis in July is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$326

February

$331

March

$357

April

$337

May

$342

June

$366

July

$369

August

$336

September

$320

October

$324

November

$336

December

$326

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated mayo 16, 2024.
Peruse reviews from past customers who have flown with Frontier, Spirit Airlines and Delta from Boston to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,673 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
10,924 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

American Airlines
7.3
Good
14,514 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Sun Country Air
7.2
Good
630 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Spirit Airlines
6.4
Okay
8,672 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from Boston to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Boston to St. Louis?

    If you wish to fly to St. Louis from Boston, then you need to book flights from Boston Logan Intl to Lambert-St Louis. There are 5 flights from Logan Intl (BOS) to Lambert-St Louis (STL) per day to choose from. Flights to St. Louis from Logan Intl are available from 7 different airlines, which means you should have some options if you want to compare airfare deals. 2h 58m is how long a nonstop flight from Boston to Lambert-St Louis typically takes.

  • Can I find flights from Boston to St. Louis for under $100 on Cheapflights?

    Yes, there are multiple flights from Boston to St. Louis for under $100. The cheapest flight booked recently is on Frontier for just $100, but on average you can expect to pay $139.

  • Are there nonstop flights from Boston to St. Louis for under $400 on Cheapflights?

    Cheapflights has at least 20 direct flights from Boston to St. Louis under $400. A good price for a nonstop flight from Boston to St. Louis is less than $340.

  • Are there last-minute flights available from Boston to St. Louis for under $400?

    There are currently 20+ open flights from Boston to St. Louis within the next 7 days for less than $400.

  • What are the cheapest airlines flying from Boston to St. Louis round-trip?

    Cheapflights users have booked flights from Boston to St. Louis round-trip from $100. Another airline that can offer you cheap pricing is Spirit Airlines. Frontier is priced at 77% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Boston to St. Louis one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $60. However, be on the lookout for offers from Spirit Airlines and American Airlines, as they are both options that can get you from Boston to St. Louis for a low price.

  • What are the most popular airlines that fly from Boston to St. Louis?

    Consider American Airlines, Alaska Airlines or JetBlue when booking your flight. These represent the most popular airlines when flying from Boston to St. Louis.

  • What are the most reliable airlines from Boston to St. Louis?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Boston to St. Louis on time: Republic Airways (100%), Qatar Airways (96%), American Airlines (94%).

  • What are the cheapest flights from Boston to St. Louis?

    Looking at all options, your cheapest flight can be booked for $139. While the most popular route (Boston Logan Intl - Lambert-St Louis) can be booked for $138 on average our data indicates $314 when flying from Boston to St. Louis.

  • What does BOS to STL mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Boston Logan Intl Airport to Lambert-St Louis Airport flight would often be abbreviated as a BOS to STL flight.

  • Can I find deals for flights from Boston to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your Boston to St. Louis flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Boston to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Boston to St. Louis flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Boston to St. Louis that include hotel bookings?

    Yes. In addition to deals on Boston to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to St. Louis.

  • Can I find deals for business class flights from Boston to St. Louis?

    Yes. Cheapflights offers flight deals from Boston to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Boston to St. Louis that allow pets onboard?

    Many airlines flying from Boston to St. Louis offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Boston to St. Louis?

    Yes, you can often find last-minute deals on Boston to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Boston to St. Louis flight deals updated?

    The Boston to St. Louis flight deals you see on this page were last updated on 5/16.

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Alternative routes for Boston to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

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Top 7 airlines flying from Boston to St. Louis

Discover the top 7 airlines that operate flights from Boston to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated mayo 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$102Average$223FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$147Average$242FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
DeltaCheapest$197Average$405FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$278Average$450FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$321Average$509FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapest$366Average$535FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
JetBlueCheapest$433Average$519FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
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Search flights from Boston to St. Louis by cabin class

Find flights from Boston to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Boston to St. Louis

Find hourly flight availability from Boston to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mayo 16, 2024.
1%of flight departuresEarly morningMidnight to 6 am
78%of flight departuresMorning6 am to noon
21%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Boston to St. Louis

Explore weekly flight availability from Boston to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated mayo 16, 2024.
Sunday7daily flights
Monday6daily flights
Tuesday6daily flights
Wednesday6daily flights
Thursday6daily flights
Friday6daily flights
Saturday3daily flights

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Boston to St. Louis?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Boston to St. Louis. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Boston to St. Louis?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to St. Louis from Boston.

Can Cheapflights find flights from Boston to St. Louis with no change fees?

Certainly. Search results for flights to St. Louis from Boston shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Boston to St. Louis become cheaper?

Yes, Cheapflights offers price alerts on Boston to St. Louis flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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