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St. Louis

$65+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — STL
Apr 6 — Apr 131
Mo 4/6
Mo 4/13
1 adult, Economy
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Cheap 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 März 7, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 5/78:25 pm
PHL
-
STL
1 stop23h 47m
Frontier
Sa 5/98:12 pm
STL
-
PHL
1 stop8h 22m
Frontier
Deal found 3/3$132
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 4/1412:17 pm
BWI
-
STL
1 stop19h 33m
Frontier
Fr 4/178:23 pm
STL
-
BWI
1 stop19h 35m
Frontier
Deal found 3/6$147
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 5/88:25 pm
PHL
-
STL
1 stop23h 47m
Frontier
Mo 5/118:12 pm
STL
-
PHL
1 stop8h 22m
Frontier
Deal found 3/3$151
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/158:41 pm
PHL
-
STL
1 stop23h 40m
Frontier
Fr 4/178:06 pm
STL
-
PHL
1 stop8h 28m
Frontier
Deal found 3/3$152
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 4/248:41 pm
PHL
-
STL
1 stop23h 51m
Frontier
Do 4/3011:21 am
STL
-
PHL
1 stop19h 49m
Frontier
Deal found 3/3$156
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 4/75:01 am
PHL
-
STL
1 stop6h 29m
Frontier
Mi 4/88:16 pm
STL
-
PHL
1 stop8h 15m
Frontier
Deal found 3/3$159
This Frontier deal was found by Cheapflights users on 3/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 5/85:35 pm
BWI
-
STL
1 stop6h 44m
Frontier
Mo 5/118:13 pm
STL
-
BWI
1 stop10h 59m
Frontier
Deal found 3/4$160
This Frontier deal was found by Cheapflights users on 3/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 5/1211:48 am
PHL
-
STL
1 stop12h 31m
Frontier
Mo 5/183:02 pm
STL
-
PHL
1 stop8h 19m
Frontier
Deal found 3/2$160
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 4/63:19 pm
BWI
-
STL
1 stop20h 11m
Frontier
Mo 5/48:23 pm
STL
-
BWI
1 stop10h 49m
Frontier
Deal found 3/4$163
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 4/225:49 pm
BWI
-
STL
1 stop17h 41m
Frontier
Sa 4/258:23 pm
STL
-
BWI
1 stop10h 39m
Frontier
Deal found 3/5$168
This CheapOair deal was found by Cheapflights users on 3/4. 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.
Do 4/1610:00 pm
BWI
-
STL
1 stop26h 19m
Frontier
Do 4/234:59 pm
STL
-
BWI
1 stop26h 52m
Frontier
Deal found 3/4$171
This CheapOair deal was found by Cheapflights users on 3/3. 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.
Mo 5/1110:38 pm
PHL
-
STL
1 stop25h 41m
Frontier
Sa 5/168:13 pm
STL
-
PHL
1 stop10h 57m
Frontier
Deal found 3/3$171

Find 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 März 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$132
(Kiwi.com)

One-way from

$65
(Trip.com)

Popular in

December

Cheapest in

August

Average price

$354

Good round-trip deal

$385 or less

Good one-way deal

$178 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Lambert-St Louis flights.
Search Deals
From Maryland to Lambert-St Louis
Search Deals
One-way flight from Maryland to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Maryland to Lambert-St Louis.
Search Deals
Price to beat on a one-way flight from Maryland to Lambert-St Louis.
Search Deals

Cheapflights Fare Finder

 
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 März 7, 2026.
Use the filters below to find and compare flights from Maryland to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Mo 5/11

8:00 am-9:20 am

Nonstop2h 20m

Lambert-St Louis

Do 5/14

7:40 pm-10:40 pm

Nonstop2h 00m

$271

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Sa 5/16

6:00 am-9:49 am

1 stop4h 49m

Lambert-St Louis

Mi 5/20

1:56 pm-6:59 pm

1 stop4h 03m

$275

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Do 4/16

6:55 am-1:45 pm

1 stop7h 50m

Lambert-St Louis

Di 4/28

3:40 pm-6:40 pm

Nonstop2h 00m

$275

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Di 4/14

8:00 am-9:20 am

Nonstop2h 20m

Lambert-St Louis

Mo 4/27

10:15 am-6:05 pm

1 stop6h 50m

$275

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Di 4/14

6:50 pm-8:15 pm

Nonstop2h 25m

Lambert-St Louis

Fr 4/17

3:45 pm-6:45 pm

Nonstop2h 00m

$286

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Mi 3/25

6:00 am-12:19 pm

1 stop7h 19m

Lambert-St Louis

Do 3/26

4:21 pm-10:42 pm

1 stop5h 21m

$287

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Mi 4/8

5:05 pm-11:11 pm

1 stop7h 06m

Lambert-St Louis

Mo 4/13

6:30 am-11:59 am

1 stop4h 29m

$291

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Mi 5/13

8:00 am-9:20 am

Nonstop2h 20m

Lambert-St Louis

So 5/17

8:25 am-11:25 am

Nonstop2h 00m

$298

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Fr 4/17

6:45 pm-8:10 pm

Nonstop2h 25m

Lambert-St Louis

Mo 4/27

1:20 pm-4:20 pm

Nonstop2h 00m

$306

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Fr 5/8

12:15 pm-1:35 pm

Nonstop2h 20m

Lambert-St Louis

Mo 5/11

8:35 am-11:35 am

Nonstop2h 00m

$306

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

Showing 1-10 of 60 resultsSorted by cheapest first
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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.

Cheapflights Insights

Everything you need to know about your flight from Maryland to St. Louis

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

Currently, September is the cheapest month in which you can book a flight from Maryland to St. Louis (average of $109). Flying from Maryland to St. Louis in January is currently the most expensive (average of $347). 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 März 7, 2026.

When flying from Maryland to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 14% versus a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Maryland to St. Louis. Price data was last updated on February 21, 2026.

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

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 19 times in the past calendar month.

  • How long is the flight from Maryland to St. Louis?

    For as low as $271, Southwest can have you in St. Louis from Maryland in 2h 20m. The distance from Maryland to St. Louis is about 717 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $69. However, be on the lookout for offers from American Airlines and Delta, 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, Baltimore/Washington - Lambert-St Louis and Philadelphia - Lambert-St Louis.

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

    On average you can expect to pay $387 for a flight from Maryland to St. Louis. The cheapest flight overall is $162 while the most popular route, (Washington, D.C. Dulles Intl - Lambert-St Louis) is currently priced at $231.

  • 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, September is the cheapest month in which you can book a flight from Maryland to St. Louis (average of $109). Flying from Maryland to St. Louis in January is currently the most expensive (average of $347). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus

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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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John F Kennedy Intl to Kansas City flights
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Dulles Intl to Kansas City flights
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Atlanta to St. Louis flights
Philadelphia to St. Louis flights
George Bush Intcntl to St. Louis flights
O'Hare Intl to St. Louis flights
San Francisco to St. Louis flights
Hobby to Kansas City flights
Minneapolis to Kansas City flights
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Baltimore to Kansas City flights
Detroit to St. Louis flights
Detroit to Kansas City flights
George Bush Intcntl to Kansas City flights
Reagan-National to Kansas City flights
Philadelphia to Kansas City flights
Sky Harbor Intl to St. Louis flights
Orlando to Kansas City flights
Miami to Kansas City flights
Raleigh to Kansas City flights
Miami to St. Louis flights
Portland to St. Louis flights
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Pittsburgh to St. Louis flights
Ontario to Kansas City flights

Top 4 airlines flying from Maryland to St. Louis

Discover the top 4 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 März 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$116Average$173FlexibilityNo cancel feeOn-time62%
DeltaCheapest$130Average$229FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$178Average$411FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$198Average$382FlexibilityNo cancel feeOn-time63%

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