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Cheap flights from Boise to St. Louis (BOI - STL) from $71

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 6/18. 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.
BOI — STL
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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The best prices from Boise Air Term. Gowen Fld to Lambert-St Louis are usually found in February or December, booked 5 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Boise to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) 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 May 16, 2024.

Popular in

July

Cheapest in

February

Round-trip from

$320

One-way from

$183
High demand for flights, 22% potential price rise
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Best time to find cheap flights, 26% potential price drop
Search Deals
From Boise Air Term. Gowen Fld to Lambert-St Louis
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One-way flight from Boise Air Term. Gowen Fld to Lambert-St Louis
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What is the cheapest day to fly round-trip from Boise to St. Louis?

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 38% when planning your travel around this day of the week.

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

Flights from Boise to St. Louis lean towards being more expensive in July. Prices are generally better when you fly from Boise to St. Louis in February, with the cheapest ticket starting at $323.

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

When flying from Boise to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 17% versus a flight in the morning.

Cheap Spirit Airlines flights from Boise to St. Louis

Explore cheap flight options specifically provided by Spirit Airlines for the route between Boise 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 May 16, 2024.
Find some of the cheapest Spirit Airlines flights traveling from Boise to St. Louis. Deals update often to give you more flight options matching your criteria
Tue 6/255:39 pmBOI - STL
1 stop18h 26mSpirit Airlines
Fri 7/124:02 pmSTL - BOI
1 stop17h 54mSpirit Airlines
Deal found 5/15$217
Fri 9/610:59 pmBOI - STL
1 stop15h 42mSpirit Airlines
Sun 9/86:18 pmSTL - BOI
1 stop27h 27mSpirit Airlines
Deal found 5/15$248
Sun 6/169:13 pmBOI - STL
1 stop15h 38mSpirit Airlines
Fri 6/213:07 pmSTL - BOI
1 stop22h 46mSpirit Airlines
Deal found 5/15$316

Cheap Delta flights from Boise to St. Louis

Explore cheap flight options specifically provided by Delta for the route between Boise 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 May 16, 2024.
Have a look at some of the cheapest available Delta flights departing from Boise and landing in St. Louis. Make sure to examine the flight information before completing your reservation.
Wed 6/265:57 pmBOI - STL
1 stop6h 01mDelta
Wed 7/106:30 pmSTL - BOI
1 stop6h 45mDelta
Deal found 5/15$302
Thu 5/305:59 pmBOI - STL
1 stop5h 47mDelta
Sun 6/27:55 amSTL - BOI
1 stop5h 27mDelta
Deal found 5/15$341
Fri 7/2611:39 pmBOI - STL
1 stop8h 24mDelta
Sun 7/286:06 amSTL - BOI
1 stop5h 54mDelta
Deal found 5/16$366
Thu 5/305:59 pmBOI - STL
1 stop5h 47mDelta
Sun 6/26:50 pmSTL - BOI
1 stop6h 24mDelta
Deal found 5/16$435
Wed 6/261:55 pmBOI - STL
2 stops10h 03mDelta
Wed 7/106:30 pmSTL - BOI
1 stop6h 45mDelta
Deal found 5/15$463
Tue 6/255:57 pmBOI - STL
1 stop6h 01mDelta
Fri 7/122:35 pmSTL - BOI
2 stops10h 17mDelta
Deal found 5/15$471
Sun 5/261:55 pmBOI - STL
1 stop8h 45mDelta
Sun 6/27:55 amSTL - BOI
1 stop5h 27mDelta
Deal found 5/14$515
Thu 5/3010:26 amBOI - STL
2 stops10h 26mDelta
Sun 6/27:55 amSTL - BOI
1 stop5h 27mDelta
Deal found 5/15$516
Thu 5/3010:26 amBOI - STL
2 stops10h 26mDelta
Sun 6/26:50 pmSTL - BOI
1 stop6h 24mDelta
Deal found 5/16$594

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

Find cheap flight options from Boise 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 May 16, 2024.
Listed are some of the best fares we've found on flights departing from Boise to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Tue 6/255:39 pmBOI - STL
1 stop18h 26mSpirit Airlines
Fri 7/124:02 pmSTL - BOI
1 stop17h 54mSpirit Airlines
Deal found 5/15$217
Wed 6/265:57 pmBOI - STL
1 stop6h 01mDelta
Wed 7/106:30 pmSTL - BOI
1 stop6h 45mDelta
Deal found 5/15$302
Sun 6/169:13 pmBOI - STL
1 stop15h 38mSpirit Airlines
Fri 6/213:07 pmSTL - BOI
1 stop22h 46mSpirit Airlines
Deal found 5/15$316
Thu 5/305:59 pmBOI - STL
1 stop5h 47mDelta
Sun 6/27:55 amSTL - BOI
1 stop5h 27mDelta
Deal found 5/15$341
Sun 6/169:13 pmBOI - STL
1 stop15h 38mMultiple Airlines
Fri 6/217:30 pmSTL - BOI
2 stops25h 53mMultiple Airlines
Deal found 5/15$384
Wed 6/266:35 amBOI - STL
1 stop16h 15mAmerican Airlines
Fri 6/286:11 pmSTL - BOI
1 stop6h 05mAmerican Airlines
Deal found 5/15$433
Sun 6/1610:55 amBOI - STL
2 stops25h 56mMultiple Airlines
Fri 6/217:30 pmSTL - BOI
2 stops25h 53mMultiple Airlines
Deal found 5/15$438
Wed 6/261:55 pmBOI - STL
2 stops10h 03mDelta
Wed 7/106:30 pmSTL - BOI
1 stop6h 45mDelta
Deal found 5/15$463
Tue 6/255:57 pmBOI - STL
1 stop6h 01mDelta
Fri 7/122:35 pmSTL - BOI
2 stops10h 17mDelta
Deal found 5/15$471

Boise to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Boise 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 May 16, 2024.
Listed are some of the best fares we've found on flights departing from Boise to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Tue 6/255:39 pmBOI - STL
1 stop18h 26mSpirit Airlines
Fri 7/124:02 pmSTL - BOI
1 stop17h 54mSpirit Airlines
Deal found 5/15$217
Fri 9/610:59 pmBOI - STL
1 stop15h 42mSpirit Airlines
Sun 9/86:18 pmSTL - BOI
1 stop27h 27mSpirit Airlines
Deal found 5/15$248
Wed 6/265:57 pmBOI - STL
1 stop6h 01mDelta
Wed 7/106:30 pmSTL - BOI
1 stop6h 45mDelta
Deal found 5/15$302
Sun 6/169:13 pmBOI - STL
1 stop15h 38mSpirit Airlines
Fri 6/213:07 pmSTL - BOI
1 stop22h 46mSpirit Airlines
Deal found 5/15$316
Thu 5/305:59 pmBOI - STL
1 stop5h 47mDelta
Sun 6/27:55 amSTL - BOI
1 stop5h 27mDelta
Deal found 5/15$341
Fri 7/2611:39 pmBOI - STL
1 stop8h 24mDelta
Sun 7/286:06 amSTL - BOI
1 stop5h 54mDelta
Deal found 5/15$366
Sun 6/169:13 pmBOI - STL
1 stop15h 38mMultiple Airlines
Fri 6/217:30 pmSTL - BOI
2 stops25h 53mMultiple Airlines
Deal found 5/15$384
Wed 6/266:35 amBOI - STL
1 stop16h 15mAmerican Airlines
Fri 6/286:11 pmSTL - BOI
1 stop6h 05mAmerican Airlines
Deal found 5/15$433
Sun 6/1610:55 amBOI - STL
2 stops25h 56mMultiple Airlines
Fri 6/217:30 pmSTL - BOI
2 stops25h 53mMultiple Airlines
Deal found 5/15$438

Boise to St. Louis flights leaving soon

Find last-minute flight options from Boise 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 May 16, 2024.
Check out these flights departing soon from Boise to St. Louis. Users should be sure to double check the price, date, and time of their last-minute flight.
Sun 5/268:50 pmBOI - STL
3 stops18h 15mMultiple Airlines
Sun 6/21:25 pmSTL - BOI
3 stops28h 05mMultiple Airlines
Deal found 5/14$480
Sun 5/261:55 pmBOI - STL
1 stop8h 45mDelta
Sun 6/27:55 amSTL - BOI
1 stop5h 27mDelta
Deal found 5/14$515
Sun 5/265:40 amBOI - STL
1 stop6h 56mAlaska Airlines
Sun 6/27:41 pmSTL - BOI
2 stops27h 20mAlaska Airlines
Deal found 5/14$637
Sun 5/267:35 amBOI - STL
2 stops10h 06mAlaska Airlines
Sun 6/22:36 pmSTL - BOI
2 stops9h 28mAlaska Airlines
Deal found 5/14$868

One-way flights to St. Louis from Boise

Search for one-way flight options from Boise 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 May 16, 2024.
Take a look at some of the best available options we've come across on one-way flights from Boise to St. Louis. For those needing a return trip from Boise, there is a search form available above.
Tue 6/189:13 pmBOI - STL
1 stop14h 52mSpirit Airlines
Deal found 5/15$71
Tue 6/259:13 pmBOI - STL
1 stop14h 52mSpirit Airlines
Deal found 5/15$80
Fri 9/2711:55 pmBOI - STL
1 stop7h 56mDelta
Deal found 5/15$152
Mon 6/173:33 pmBOI - STL
1 stop6h 24mAmerican Airlines
Deal found 5/15$183
Sat 9/2811:00 amBOI - STL
2 stops9h 30mDelta
Deal found 5/15$186
Tue 6/185:39 pmBOI - STL
3 stops26h 27mMultiple Airlines
Deal found 5/15$206
Fri 9/277:10 pmBOI - STL
2 stops13h 57mUnited Airlines
Deal found 5/15$216
Mon 6/177:19 pmBOI - STL
3 stops18h 04mSpirit Airlines
Deal found 5/15$223
Tue 6/186:54 pmBOI - STL
2 stops28h 05mAlaska Airlines
Deal found 5/15$252

Find flights from Boise to St. Louis within your budget

Customize your flight search to find flights from Boise 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 May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$217 - $565

Route

Depart

Return

Price

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Tue 6/25

1 stop18h 26m

Lambert-St Louis

Fri 7/12

1 stop17h 54m

$217

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Fri 9/6

1 stop15h 42m

Lambert-St Louis

Sun 9/8

1 stop27h 27m

$248

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Wed 6/26

1 stop6h 01m

Lambert-St Louis

Wed 7/10

1 stop6h 45m

$302

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Sun 6/16

1 stop15h 38m

Lambert-St Louis

Fri 6/21

1 stop22h 46m

$316

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Thu 5/30

1 stop5h 47m

Lambert-St Louis

Sun 6/2

1 stop5h 27m

$341

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Sun 6/16

1 stop15h 38m

Lambert-St Louis

Fri 6/21

2 stops25h 53m

$384

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Wed 6/26

1 stop16h 15m

Lambert-St Louis

Fri 6/28

1 stop6h 05m

$433

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Fri 9/6

2 stops11h 02m

Lambert-St Louis

Sun 9/8

2 stops19h 39m

$564

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Fri 7/26

2 stops21h 13m

Lambert-St Louis

Sun 7/28

1 stop8h 35m

$565

Flights are sorted by cheapest first

Deals found on 5/15

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

Use this chart to determine the optimal time to book a round-trip flight from Boise to St. Louis. Price data was last updated on May 10, 2024.
To ensure you get the cheapest price possible for a flight from Boise to St. Louis, you should look to book at least 5 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 Boise to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Boise 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 Boise to St. Louis flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to St. Louis by month

Plan your trip from Boise to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Boise to St. Louis is currently $174 while a round-trip flight costs $374. Price data was last updated on May 12, 2024.

Currently, September is the cheapest month in which you can book a flight from Boise to St. Louis (average of $320). Flying from Boise 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 May 16, 2024.
Get a feel of what it's like to fly with Spirit Airlines, Delta and American Airlines from Boise to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Entertainment

7.3

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.6

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,157 reviews
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Entertainment

7.3

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.6

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Delta
8.0
Very good
10,673 reviews
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Entertainment

7.3

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.6

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

United Airlines
7.4
Good
10,924 reviews
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Entertainment

7.3

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.6

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

American Airlines
7.3
Good
14,514 reviews
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Entertainment

7.3

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.6

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Spirit Airlines
6.4
Okay
8,672 reviews
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Entertainment

7.3

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.6

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

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

  • Can I find flights from Boise to St. Louis for under $300 on Cheapflights?

    Yes, there are multiple flights from Boise to St. Louis for under $300. The cheapest flight booked recently is on Spirit Airlines for just $217, but on average you can expect to pay $429.

  • Are there last-minute flights available from Boise to St. Louis for under $500?

    There are currently 4+ open flights from Boise to St. Louis within the next 7 days for less than $500.

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

    Currently priced at $217, Spirit Airlines will fly you from Boise to St. Louis and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and American Airlines - these airlines can fly you to your destination from $302 and $433, respectively. You may be able to fly from Boise to St. Louis for 54% less than the average price by searching for these airlines.

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

    The cheapest airlines for a one-way flight from Boise to St. Louis are Spirit Airlines ($71), Delta ($152), and American Airlines ($183).

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

    Before booking your flight from Boise to St. Louis check out the most popular airlines for this route: American Airlines, Alaska Airlines or Delta.

  • What does BOI to STL mean?

    BOI and STL are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. BOI to STL refers to a flight route from Boise Air Term. Gowen Fld Airport to Lambert-St Louis Airport.

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

    The amount of baggage you can bring on your Boise 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 Boise to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Boise 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 Boise to St. Louis that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Boise 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 Boise to St. Louis that allow pets onboard?

    Many airlines flying from Boise 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 Boise to St. Louis?

    Yes, you can often find last-minute deals on Boise 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 Boise to St. Louis flight deals updated?

    The Boise to St. Louis flight deals you see on this page were last updated on 5/15.

See more FAQs

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

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Top 5 airlines flying from Boise to St. Louis

Discover the top 5 airlines that operate flights from Boise 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 May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$272Average$344FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapest$287Average$469FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$297Average$462FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$340Average$630FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapest$354Average$373FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
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Search flights from Boise to St. Louis by cabin class

Find flights from Boise to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Weekly flight availability from Boise to St. Louis

Explore weekly flight availability from Boise 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 May 16, 2024.
Sunday1daily flight
Monday0daily flights
Tuesday0daily flights
Wednesday0daily flights
Thursday0daily flights
Friday0daily flights
Saturday0daily 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 Boise to St. Louis?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to St. Louis from Boise today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Boise to St. Louis for you. Better yet — we are completely free to use.

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

Yes, we can. To see specific flights from Boise to St. Louis with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights offers price alerts on Boise 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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