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St. Louis

$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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — STL
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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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 November 3, 2025.

This CheapOair deal was found by Cheapflights users on 11/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/138:21 pmBWI - STL
1 stop20h 59mFrontier
Mon 11/1710:25 amSTL - BWI
1 stop22h 55mFrontier
Deal found 11/2$150
This Mytrip deal was found by Cheapflights users on 11/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1811:19 amBWI - STL
1 stop23h 46mMultiple Airlines
Sat 11/229:52 amSTL - BWI
1 stop7h 11mMultiple Airlines
Deal found 11/3$165
This Frontier deal was found by Cheapflights users on 11/2. 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.
Wed 12/311:16 amBWI - STL
1 stop12h 17mFrontier
Thu 12/1112:04 pmSTL - BWI
1 stop11h 20mFrontier
Deal found 11/2$168
This Kiwi.com deal was found by Cheapflights users on 10/31. 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.
Sat 12/68:00 pmBWI - STL
1 stop13h 59mMultiple Airlines
Tue 12/93:30 pmSTL - BWI
1 stop16h 52mMultiple Airlines
Deal found 10/31$188
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:37 amBWI - STL
1 stop14h 56mMultiple Airlines
Mon 12/87:43 pmSTL - BWI
2 stops12h 39mMultiple Airlines
Deal found 11/2$189
This CheapOair deal was found by Cheapflights users on 11/1. 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.
Thu 11/204:25 pmBWI - STL
1 stop8h 32mFrontier
Sat 11/224:13 pmSTL - BWI
1 stop26h 37mFrontier
Deal found 11/1$190
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:37 amBWI - STL
1 stop14h 56mFrontier
Sun 12/710:42 amSTL - BWI
1 stop12h 42mFrontier
Deal found 11/2$191
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Tue 11/189:36 pmBWI - STL
2 stops26h 25mMultiple Airlines
Thu 11/203:14 pmSTL - BWI
1 stop7h 05mMultiple Airlines
Deal found 11/3$192
This CheapOair deal was found by Cheapflights users on 11/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/145:50 amBWI - STL
1 stop11h 11mFrontier
Mon 11/1710:25 amSTL - BWI
1 stop22h 55mFrontier
Deal found 11/2$196
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/168:21 pmBWI - STL
1 stop14h 19mMultiple Airlines
Tue 11/187:45 pmSTL - BWI
2 stops16h 10mMultiple Airlines
Deal found 11/2$197
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Mon 11/174:55 pmBWI - STL
2 stops41h 12mMultiple Airlines
Thu 11/203:14 pmSTL - BWI
1 stop7h 05mMultiple Airlines
Deal found 11/3$198
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/310:41 amBWI - STL
1 stop12h 52mMultiple Airlines
Fri 12/123:30 pmSTL - BWI
1 stop15h 12mMultiple Airlines
Deal found 11/2$199

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 November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$150
(CheapOair)

One-way from

$55
(Priceline)

Popular in

October

Cheapest in

August

Average price

$334

Good round-trip deal

$312 or less

Good one-way deal

$168 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. 4% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 November 3, 2025.
Use the filters below to find and compare flights from Maryland to St. Louis that are best for you.

Fly from

Maryland

Fly to

St. Louis

Route

Depart

Return

Price

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Wed 12/3

11:16 am-10:33 pm

1 stop12h 17m

Lambert-St Louis

Thu 12/11

12:04 pm-12:24 am

1 stop11h 20m

$168

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Fri 11/14

9:11 pm-3:38 pm

1 stop19h 27m

Lambert-St Louis

Mon 11/17

10:25 am-10:20 am

1 stop22h 55m

$196

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Tue 11/18

4:52 pm-10:05 am

1 stop18h 13m

Lambert-St Louis

Wed 11/19

7:45 pm-11:19 pm

2 stops26h 34m

$209

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Thu 12/4

5:45 am-11:07 am

1 stop6h 22m

Lambert-St Louis

Fri 12/12

9:54 am-8:16 pm

1 stop9h 22m

$216

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Wed 12/3

11:13 am-10:33 pm

2 stops12h 20m

Lambert-St Louis

Sat 12/6

3:30 pm-11:13 pm

1 stop6h 43m

$220

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Tue 12/2

7:02 am-10:45 am

1 stop4h 43m

Lambert-St Louis

Sat 12/6

11:19 am-5:14 pm

1 stop4h 55m

$229

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Tue 12/2

6:00 am-9:50 am

1 stop4h 50m

Lambert-St Louis

Wed 12/10

6:05 pm-11:03 pm

1 stop3h 58m

$229

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Thu 12/4

6:00 am-9:50 am

1 stop4h 50m

Lambert-St Louis

Wed 12/10

7:05 am-12:46 pm

1 stop4h 41m

$229

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Tue 12/2

11:13 am-10:33 pm

2 stops12h 20m

Lambert-St Louis

Thu 12/11

2:47 pm-10:57 pm

1 stop7h 10m

$243

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Wed 12/3

8:15 am-9:35 am

Nonstop2h 20m

Lambert-St Louis

Wed 12/10

7:00 pm-9:55 pm

Nonstop1h 55m

$263

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 60 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.

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 June is currently the most expensive (average of $271). 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 November 3, 2025.

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 in the evening, which can drop the price by up to 34% versus a flight in the morning.

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 November 2, 2025.

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. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Maryland to St. Louis?

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 16 times in the past calendar month.

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

    For as low as $263, Frontier 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 $61. However, be on the lookout for offers from Southwest 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, Washington, D.C. Reagan-National - 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 $338 for a flight from Maryland to St. Louis. The cheapest flight overall is $129 while the most popular route, (Washington, D.C. Dulles Intl - Lambert-St Louis) is currently priced at $128.

  • 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 June is currently the most expensive (average of $271). 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
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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Alternative routes for Maryland to St. Louis

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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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$112Average$173FlexibilityNo cancel feeOn-time62%
DeltaCheapest$130Average$214FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$178Average$272FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$198Average$376FlexibilityNo cancel feeOn-time63%

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