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$55+ Cheap flights from Maryland to St. Louis (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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — STL
Feb 28 — Mar 71
Fri 2/28
Fri 3/7
1 adult, Economy
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Cheap flight deals from Maryland to St. Louis

Keep the following information in mind while searching for Maryland to St. Louis flight deals. Data was last updated February 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$114
(Mytrip)

One-way from

$55
(Frontier)

Popular in

March

Cheapest in

August

Average price

$369

Good round-trip deal

$282 or less

Good one-way deal

$180 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Lambert-St Louis flights.
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From Maryland to Lambert-St Louis
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One-way flight from Maryland to Lambert-St Louis
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Highest demand for flights based on searches. 6% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Maryland to Lambert-St Louis.
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Price to beat on a one-way flight from Maryland to Lambert-St Louis.
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Find flight deals from Maryland to St. Louis

Cheapest flights from Maryland to St. Louis
Explore the most affordable flight options available from Maryland to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 23, 2025.

This Mytrip deal was found by Cheapflights users on 2/22. 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.
Tue 4/86:50 amBWI - STL
1 stop12h 02mSpirit Airlines
Tue 4/156:11 pmSTL - BWI
1 stop5h 45mSpirit Airlines
Deal found 2/22$114
This CheapOair deal was found by Cheapflights users on 2/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/269:12 pmBWI - STL
1 stop27h 52mFrontier
Tue 4/295:41 pmSTL - BWI
1 stop20h 00mFrontier
Deal found 2/20$120
This FlightHub deal was found by Cheapflights users on 2/20. 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.
Tue 5/139:00 amBWI - STL
1 stop10h 32mMultiple Airlines
Thu 5/154:07 pmSTL - BWI
1 stop24h 15mMultiple Airlines
Deal found 2/20$142
This Southwest deal was found by Cheapflights users on 2/22. 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.
Mon 3/2410:20 pmBWI - STL
Nonstop2h 20mSouthwest
Wed 4/96:15 amSTL - BWI
Nonstop2h 00mSouthwest
Deal found 2/22$197
This Delta deal was found by Cheapflights users on 2/20. 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 5/16:00 amBWI - STL
1 stop4h 28mDelta
Fri 5/25:32 pmSTL - BWI
1 stop6h 09mDelta
Deal found 2/20$217
This Booking.com deal was found by Cheapflights users on 2/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/251:03 pmDCA - STL
1 stop21h 13mFrontier
Sat 3/17:04 pmSTL - DCA
1 stop15h 59mFrontier
Deal found 2/21$234
This United Airlines deal was found by Cheapflights users on 2/21. 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.
Wed 4/98:35 amIAD - STL
Nonstop2h 23mUnited Airlines
Wed 4/93:40 pmSTL - IAD
1 stop4h 21mUnited Airlines
Deal found 2/21$237
This American Airlines deal was found by Cheapflights users on 2/22. 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.
Sat 3/84:59 pmDCA - STL
Nonstop2h 34mAmerican Airlines
Mon 3/105:55 amSTL - DCA
1 stop4h 05mAmerican Airlines
Deal found 2/22$237
This Booking.com deal was found by Cheapflights users on 2/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/255:25 pmIAD - STL
1 stop7h 39mFrontier
Sun 4/275:41 pmSTL - IAD
1 stop21h 54mFrontier
Deal found 2/21$240
This Southwest deal was found by Cheapflights users on 2/22. 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.
Wed 4/97:50 amIAD - STL
2 stops10h 55mSouthwest
Thu 4/175:20 amSTL - IAD
1 stop7h 05mSouthwest
Deal found 2/22$242
This Southwest deal was found by Cheapflights users on 2/22. 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.
Mon 3/243:45 pmDCA - STL
1 stop7h 10mSouthwest
Wed 4/910:15 amSTL - DCA
2 stops6h 45mSouthwest
Deal found 2/22$242
This Delta deal was found by Cheapflights users on 2/22. 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.
Wed 3/266:00 amIAD - STL
1 stop4h 36mDelta
Tue 4/85:30 pmSTL - IAD
1 stop5h 58mDelta
Deal found 2/22$248

Find flights from Maryland to St. Louis within your budget

Customize your flight search to find flights from Maryland 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 2,558,603 searches. Data last updated February 23, 2025.

Fly from

Maryland

Fly to

St. Louis

Route

Depart

Return

Price

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Tue 4/8

6:50 am-5:52 pm

1 stop12h 02m

Lambert-St Louis

Tue 4/15

6:11 pm-12:56 am

1 stop5h 45m

$114

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Sat 4/26

9:12 pm-12:04 am

1 stop27h 52m

Lambert-St Louis

Tue 4/29

5:41 pm-2:41 pm

1 stop20h 00m

$120

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Tue 5/13

9:00 am-6:32 pm

1 stop10h 32m

Lambert-St Louis

Thu 5/15

4:07 pm-5:22 pm

1 stop24h 15m

$142

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Mon 3/24

10:20 pm-11:40 pm

Nonstop2h 20m

Lambert-St Louis

Wed 4/9

6:15 am-9:15 am

Nonstop2h 00m

$197

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Thu 5/1

6:00 am-9:28 am

1 stop4h 28m

Lambert-St Louis

Fri 5/2

5:32 pm-12:41 am

1 stop6h 09m

$217

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Wed 4/9

8:35 am-9:58 am

Nonstop2h 23m

Lambert-St Louis

Wed 4/9

3:40 pm-9:01 pm

1 stop4h 21m

$237

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Sat 3/8

4:59 pm-6:33 pm

Nonstop2h 34m

Lambert-St Louis

Mon 3/10

5:55 am-11:00 am

1 stop4h 05m

$237

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Fri 4/25

5:25 pm-12:04 am

1 stop7h 39m

Lambert-St Louis

Sun 4/27

5:41 pm-4:35 pm

1 stop21h 54m

$240

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Wed 4/9

7:50 am-5:45 pm

2 stops10h 55m

Lambert-St Louis

Thu 4/17

5:20 am-1:25 pm

1 stop7h 05m

$242

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Mon 3/24

3:45 pm-9:55 pm

1 stop7h 10m

Lambert-St Louis

Wed 4/9

10:15 am-6:00 pm

2 stops6h 45m

$242

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 52 results
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Best time to book a flight from Maryland to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Maryland 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 Maryland to St. Louis

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

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

Currently, August is the cheapest month in which you can book a flight from Maryland to St. Louis (average of $311). Flying from Maryland to St. Louis in March is currently the most expensive (average of $356). 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 MD to STL?

Find hourly flight availability from Maryland 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 February 23, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Maryland to St. Louis as you normally would.

Weekly flight availability from Maryland to St. Louis

Explore weekly flight availability from Maryland 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 February 23, 2025.

The most flights from USMD to STL are scheduled on a Thursday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

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 February 23, 2025.
To help decide which airline to fly from Maryland to St. Louis, see what other customers have to say about Southwest, Alaska Airlines and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,396 reviews

Overall

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,396 reviews
Southwest
8.1
Very good
4,396 reviews

Overall

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,702 reviews
Southwest
8.1
Very good
4,396 reviews

Overall

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,203 reviews
Southwest
8.1
Very good
4,396 reviews

Overall

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,754 reviews
Southwest
8.1
Very good
4,396 reviews

Overall

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,396 reviews

Overall

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

Find useful and relevant information for your journey from Maryland 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 airport do you fly into for flights to St. Louis from Maryland?

    Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Maryland. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

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

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $55. However, be on the lookout for offers from Spirit Airlines and United Airlines, as they are both options that can get you from Maryland to St. Louis for a low price.

  • What are the most popular routes from Maryland to St. Louis?

    The most popular flight routes from Maryland to St. Louis are Washington, D.C. Dulles Intl - Lambert-St Louis, Philadelphia - Lambert-St Louis and Baltimore/Washington - Lambert-St Louis.

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

    On average you can expect to pay $336 for a flight from Maryland to St. Louis. The cheapest flight overall is $89 while the most popular route, (Washington, D.C. Dulles Intl - Lambert-St Louis) is currently priced at $189.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Maryland 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 Maryland to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Maryland to St. Louis (average of $311). Flying from Maryland to St. Louis in March is currently the most expensive (average of $356). 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.

See more FAQs

Traveling to a place near Maryland?

Book flights to Maryland if you plan to visit one of these locations
Fenton
Fairview Heights
Maryland Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Alton
Farmington
Chesterfield

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Alternative routes for Maryland 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 Maryland to St. Louis

Discover the top 6 airlines that operate flights from Maryland 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 2,558,603 searches. Data last updated February 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$171FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$133Average$189FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$158Average$376FlexibilityNo cancel feeOn-time69%
DeltaCheapest$176Average$318FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$185Average$389FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$229Average$383FlexibilityNo cancel feeOn-time63%
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