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$47+ Cheap flights from St. Louis (STL) to Maryland

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 12/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BWI
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from St. Louis to Maryland

Keep the following information in mind while searching for St. Louis to Maryland flight deals. Data was last updated October 30, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$110
(Mytrip)

One-way from

$47
(Kiwi.com)

Popular in

March

Cheapest in

August

Average price

$316

Good round-trip deal

$366 or less

Good one-way deal

$186 or less
Provider with most accurate pricing for Lambert-St Louis-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Washington, D.C. (WAS) flights.
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From Lambert-St Louis to Maryland
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One-way flight from Lambert-St Louis to Maryland
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Highest demand for flights based on searches. 10% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Lambert-St Louis to Maryland.
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Price to beat on a one-way flight from Lambert-St Louis to Maryland.
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Find flight deals from St. Louis to Maryland

Cheapest flights from St. Louis to Maryland
Explore the most affordable flight options available from St. Louis to Maryland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Priceline deal was found by Cheapflights users on 10/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/132:12 pmSTL - PHL
1 stop6h 10mFrontier
Mon 11/175:05 amPHL - STL
1 stop9h 12mFrontier
Deal found 10/29$110
This Mytrip deal was found by Cheapflights users on 10/28. 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.
Wed 11/197:24 pmSTL - BWI
1 stop18h 56mFrontier
Thu 11/208:45 pmBWI - STL
1 stop28h 12mFrontier
Deal found 10/28$110
This Booking.com deal was found by Cheapflights users on 10/28. 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.
Thu 11/132:12 pmSTL - PHL
1 stop6h 10mFrontier
Sat 11/156:50 pmPHL - STL
1 stop19h 27mFrontier
Deal found 10/28$111
This Booking.com deal was found by Cheapflights users on 10/27. 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.
Wed 12/33:30 pmSTL - BWI
1 stop15h 12mFrontier
Sat 12/68:37 amBWI - STL
1 stop14h 56mFrontier
Deal found 10/27$111
This Booking.com deal was found by Cheapflights users on 10/30. 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.
Wed 12/103:30 pmSTL - BWI
1 stop15h 12mFrontier
Mon 12/155:40 amBWI - STL
1 stop5h 12mFrontier
Deal found 10/30$121
This Mytrip deal was found by Cheapflights users on 10/29. 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.
Fri 11/144:56 pmSTL - BWI
1 stop6h 17mFrontier
Tue 11/1811:19 amBWI - STL
1 stop23h 46mFrontier
Deal found 10/29$127
This Booking.com deal was found by Cheapflights users on 10/30. 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.
Thu 11/132:12 pmSTL - BWI
1 stop17h 22mFrontier
Sun 11/1610:21 amBWI - STL
1 stop24h 19mFrontier
Deal found 10/30$128
This Booking.com deal was found by Cheapflights users on 10/28. 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.
Thu 11/132:12 pmSTL - BWI
1 stop17h 22mMultiple Airlines
Wed 11/199:36 pmBWI - STL
1 stop13h 22mMultiple Airlines
Deal found 10/28$129
This Frontier deal was found by Cheapflights users on 10/29. 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.
Thu 12/1112:04 pmSTL - BWI
1 stop11h 20mFrontier
Mon 12/155:40 amBWI - STL
1 stop5h 12mFrontier
Deal found 10/29$130
This Priceline deal was found by Cheapflights users on 10/28. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/144:56 pmSTL - PHL
1 stop6h 23mFrontier
Mon 11/175:05 amPHL - STL
1 stop9h 12mFrontier
Deal found 10/28$143
This Frontier deal was found by Cheapflights users on 10/28. 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.
Fri 11/74:56 pmSTL - BWI
1 stop6h 17mFrontier
Thu 11/136:15 amBWI - STL
1 stop4h 57mFrontier
Deal found 10/28$143
This Booking.com deal was found by Cheapflights users on 10/28. 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.
Sat 12/133:30 pmSTL - BWI
1 stop14h 48mFrontier
Sun 12/149:43 pmBWI - STL
1 stop12h 16mFrontier
Deal found 10/28$144

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Maryland 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 October 30, 2025.
Use the filters below to find and compare flights from St. Louis to Maryland that are best for you.

Fly from

St. Louis

Fly to

Maryland

Route

Depart

Return

Price

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Thu 11/13

2:12 pm-8:34 am

1 stop17h 22m

Baltimore/Washington

Sun 11/16

10:21 am-9:40 am

1 stop24h 19m

$128

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Sat 1/24

5:11 pm-7:47 am

1 stop13h 36m

Baltimore/Washington

Tue 1/27

6:45 am-10:33 pm

2 stops16h 48m

$148

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Sun 1/25

5:11 pm-7:47 am

1 stop13h 36m

Baltimore/Washington

Tue 1/27

3:31 pm-10:33 pm

1 stop8h 02m

$150

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Wed 11/12

7:45 pm-4:49 am

1 stop8h 04m

Philadelphia

Sun 11/16

5:05 am-1:17 pm

1 stop9h 12m

$167

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Mon 12/15

10:47 am-7:30 pm

1 stop7h 43m

Philadelphia

Mon 12/15

10:00 pm-10:33 pm

1 stop25h 33m

$199

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Mon 11/10

7:45 pm-6:29 pm

2 stops21h 44m

Baltimore/Washington

Fri 11/14

5:50 am-4:01 pm

1 stop11h 11m

$209

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Mon 12/15

7:43 pm-5:31 am

1 stop8h 48m

Philadelphia

Fri 12/19

8:36 pm-10:02 am

1 stop14h 26m

$220

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Thu 12/11

6:00 am-11:14 am

1 stop4h 14m

Baltimore/Washington

Sun 12/14

6:00 am-9:50 am

1 stop4h 50m

$229

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Fri 12/5

12:45 pm-7:55 pm

2 stops6h 10m

Baltimore/Washington

Sat 12/6

10:30 am-5:00 pm

2 stops7h 30m

$239

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Sat 11/22

8:55 am-11:50 am

Nonstop1h 55m

Washington, D.C. Reagan-National

Mon 11/24

8:00 am-9:20 am

Nonstop2h 20m

$261

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 60 results
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Best time to book a flight from St. Louis to Maryland

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

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Maryland (average of $123). Flying from St. Louis to Maryland in December is currently the most expensive (average of $280). 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 STL to MD?

Find hourly flight availability from St. Louis to Maryland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 32% on flights from St. Louis to Maryland by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Maryland. Price data was last updated on October 26, 2025.

Travelers seeking maximum savings on their St. Louis to Maryland flight should consider departing on Thursday at noon 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.

Reviews of airlines servicing Maryland

Get insights into the airlines that provide service to Maryland. 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 Maryland. Reviews last updated October 30, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and American Airlines from St. Louis to Maryland by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
7,993 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,030 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,123 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

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

    For a flight from St. Louis to Maryland, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city.

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

    The Lambert-St Louis to Maryland flight path was viewed by 30 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Airlines like Frontier, Delta, and Southwest fly from St. Louis to Maryland in about 1h 55m. The time it takes to get you to your destination can typically vary by up to 15h 27m. Airlines will cover a distance of 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 St. Louis to Maryland one-way?

    The cheapest airlines for a one-way flight from St. Louis to Maryland are Spirit Airlines ($90), Southwest ($110), and Frontier ($112).

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

    Most travelers choose Lambert-St Louis - Washington, D.C. Dulles Intl, Lambert-St Louis - Baltimore/Washington or Lambert-St Louis - Washington, D.C. Reagan-National when deciding on the best route from St. Louis to Maryland.

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

    On average you can expect to pay $322 for a flight from St. Louis to Maryland. The cheapest flight overall is $186 while the most popular route, (Lambert-St Louis - Washington, D.C. Dulles Intl) is currently priced at $253.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Maryland (average of $123). Flying from St. Louis to Maryland in December is currently the most expensive (average of $280). 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

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Alternative routes for St. Louis to Maryland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from St. Louis to Maryland

Discover the top 4 airlines that operate flights from St. Louis to Maryland. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$124Average$218FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$196Average$378FlexibilityNo cancel feeOn-time71%
DeltaCheapest$196Average$290FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$207Average$379FlexibilityNo cancel feeOn-time63%

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