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$60+ Cheap flights from Baltimore to St. Louis (BWI - STL)

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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — STL
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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The best prices from Baltimore/Washington to Lambert-St Louis are usually found in March or October, booked 83 days in advance, depart on a Tuesday or Thursday and return on a Thursday

Cheap flight deals from Baltimore to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) 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 November 20, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

May

Cheapest in

March

Round-trip from

$128
(FlightHub)

One-way from

$60
(Frontier)
Provider with most accurate pricing for Baltimore/Washington-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Baltimore/Washington-Lambert-St Louis flights.
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High demand for flights, 24% potential price rise
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Best time to find cheap flights, 22% potential price drop
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From Baltimore/Washington to Lambert-St Louis
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One-way flight from Baltimore/Washington to Lambert-St Louis
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Find flight deals from Baltimore to St. Louis

Cheapest flights from Baltimore to St. Louis
Explore the most affordable flight options available from Baltimore to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This FlightHub deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/89:20 pmBWI - STL
1 stop27h 04mFrontier
Wed 12/115:02 pmSTL - BWI
1 stop14h 05mFrontier
Deal found 11/19$128
This Mytrip deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/85:00 amBWI - STL
1 stop11h 21mSpirit Airlines
Tue 12/104:26 pmSTL - BWI
2 stops17h 49mSpirit Airlines
Deal found 11/20$192
This FlightHub deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1110:10 amBWI - STL
1 stop14h 14mMultiple Airlines
Thu 12/124:26 pmSTL - BWI
1 stop16h 11mMultiple Airlines
Deal found 11/20$203
This Delta deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/126:00 amBWI - STL
1 stop4h 35mDelta
Thu 12/127:05 pmSTL - BWI
1 stop4h 33mDelta
Deal found 11/20$216
This Southwest deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/193:30 pmBWI - STL
1 stop4h 35mSouthwest
Thu 12/199:25 pmSTL - BWI
Nonstop1h 55mSouthwest
Deal found 11/20$262
This American Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/267:30 amBWI - STL
1 stop4h 42mAmerican Airlines
Wed 1/15:45 amSTL - BWI
1 stop4h 37mAmerican Airlines
Deal found 11/19$319
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/810:10 amBWI - STL
1 stop5h 15mUnited Airlines
Tue 12/106:30 amSTL - BWI
1 stop6h 30mUnited Airlines
Deal found 11/20$427

Find flights from Baltimore to St. Louis within your budget

Customize your flight search to find flights from Baltimore 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Sun 12/8

9:15 am-11:24 pm

1 stop15h 09m

Lambert-St Louis

Tue 12/10

5:02 pm-9:10 am

1 stop15h 08m

$128

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Sun 12/8

5:00 am-3:21 pm

1 stop11h 21m

Lambert-St Louis

Tue 12/10

4:26 pm-11:15 am

2 stops17h 49m

$192

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Wed 12/11

10:10 am-11:24 pm

1 stop14h 14m

Lambert-St Louis

Thu 12/12

4:26 pm-9:37 am

1 stop16h 11m

$203

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Thu 12/12

6:00 am-9:35 am

1 stop4h 35m

Lambert-St Louis

Thu 12/12

7:05 pm-12:38 am

1 stop4h 33m

$216

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Thu 12/19

3:30 pm-7:05 pm

1 stop4h 35m

Lambert-St Louis

Thu 12/19

9:25 pm-12:20 am

Nonstop1h 55m

$262

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Thu 12/26

7:30 am-11:12 am

1 stop4h 42m

Lambert-St Louis

Wed 1/1

5:45 am-11:22 am

1 stop4h 37m

$319

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Sat 1/18

9:20 pm-7:22 am

1 stop11h 02m

$60

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Wed 1/22

4:09 pm-2:43 pm

2 stops23h 34m

$100

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Wed 1/8

2:01 pm-6:45 pm

1 stop5h 44m

$108

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Tue 12/24

10:52 am-3:47 pm

1 stop5h 55m

$126

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 13 results
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Compare providers for flights from Baltimore to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to St. Louis in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Baltimore-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Baltimore to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Baltimore with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Baltimore to St. Louis

Get recent, data-driven insights about flights from Baltimore to St. Louis including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Baltimore to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Baltimore to St. Louis. Price data was last updated on November 15, 2024.

To ensure you get the cheapest price possible for a flight from Baltimore to St. Louis, you should look to book at least 83 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.

What is the cheapest month to book a flight from Baltimore to St. Louis?

Currently, September is the cheapest month in which you can book a flight from Baltimore to St. Louis (average of $308). Flying from Baltimore to St. Louis in March is currently the most expensive (average of $357). 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.

What is the cheapest time of day to fly from BWI to STL?

Find hourly flight availability from Baltimore 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 November 20, 2024.

One of the essential ways to save on airfare from Baltimore to St. Louis is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 21% on airfare.

What is the cheapest day to fly from Baltimore to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Baltimore to St. Louis. Price data was last updated on November 18, 2024.

Travelers seeking maximum savings on their Baltimore to St. Louis flight should consider departing on Monday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in St. Louis by month

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

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

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

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 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 November 20, 2024.
See what other customers who have flown with American Airlines, Spirit Airlines and Frontier from Baltimore to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,756 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,171 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Spirit Airlines
6.3
Okay
8,174 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Baltimore 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 Baltimore to St. Louis?

    Lambert-St Louis is the airport most travelers will use when flying to St. Louis from Baltimore/Washington. Booking flights from Baltimore/Washington (BWI) to Lambert-St Louis (STL) should be relatively easy as there are 4 daily flights to St. Louis from 6 different airlines. 2h 15m is how long a flight from Baltimore to Lambert-St Louis will take if you book a nonstop flight.

  • How popular is this Baltimore to St. Louis flight route?

    Flights from Baltimore/Washington to Lambert-St Louis have been viewed 4 times in the past calendar month.

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

    Flying on Frontier is currently your cheapest option to St. Louis, with prices starting at $128. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and Delta, with the lowest prices starting at $192 and $216, respectively. Users have found that Frontier is 63% cheaper than the other options available to this destination.

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

    The cheapest airlines for a one-way flight from Baltimore to St. Louis are Frontier ($60), Spirit Airlines ($100), and Delta ($108).

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

    Looking for the cheapest flight from Baltimore to St. Louis? While on average our users pay $353, our data indicates the cheapest price to be $80. The most popular route (Baltimore/Washington - Lambert-St Louis), is priced around $128.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Baltimore 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.

  • What is the cheapest month to book a flight from Baltimore to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from Baltimore to St. Louis (average of $308). Flying from Baltimore to St. Louis in March is currently the most expensive (average of $357). 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.

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Alternative routes for Baltimore to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Baltimore to St. Louis

Discover the top 6 airlines that operate flights from Baltimore 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$168FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$133Average$186FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$158Average$376FlexibilityNo cancel feeOn-time69%
DeltaCheapest$176Average$333FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$189Average$427FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$240Average$381FlexibilityNo cancel feeOn-time63%
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