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$74+ 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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BWI
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
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 April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$194
(Mytrip)

One-way from

$88
(Cheapflightsfares)

Popular in

March

Cheapest in

November

Average price

$312

Good round-trip deal

$296 or less

Good one-way deal

$162 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
Search Deals
One-way flight from Lambert-St Louis to Maryland
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
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 April 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 April 17, 2025.

This Mytrip deal was found by Cheapflights users on 4/17. 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.
Mon 4/285:41 pmSTL - BWI
1 stop20h 26mFrontier
Wed 4/301:57 pmBWI - STL
1 stop11h 07mFrontier
Deal found 4/17$194
This Southwest deal was found by Cheapflights users on 4/15. 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.
Fri 7/48:30 amSTL - DCA
Nonstop1h 55mSouthwest
Sun 7/64:05 pmDCA - STL
1 stop4h 50mSouthwest
Deal found 4/15$210
This American Airlines deal was found by Cheapflights users on 4/16. 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 5/243:47 pmSTL - DCA
Nonstop1h 58mAmerican Airlines
Sat 5/3110:20 amDCA - STL
Nonstop2h 32mAmerican Airlines
Deal found 4/16$213
This Mytrip deal was found by Cheapflights users on 4/17. 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 4/306:58 pmSTL - DCA
1 stop21h 01mFrontier
Sun 5/47:00 amDCA - STL
1 stop27h 09mFrontier
Deal found 4/17$217
This Delta deal was found by Cheapflights users on 4/16. 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.
Sat 5/243:40 pmSTL - IAD
1 stop6h 55mDelta
Sat 5/316:00 amIAD - STL
1 stop6h 54mDelta
Deal found 4/16$217
This Booking.com deal was found by Cheapflights users on 4/16. 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 4/245:41 pmSTL - IAD
1 stop21h 54mFrontier
Sun 4/275:25 pmIAD - STL
1 stop7h 39mFrontier
Deal found 4/16$228
This United Airlines deal was found by Cheapflights users on 4/15. 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.
Sat 9/68:25 amSTL - IAD
Nonstop2h 06mUnited Airlines
Sat 9/138:20 amIAD - STL
Nonstop2h 28mUnited Airlines
Deal found 4/15$229
This Delta deal was found by Cheapflights users on 4/16. 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.
Sat 5/3112:59 pmSTL - DCA
1 stop4h 23mDelta
Sat 6/76:32 pmDCA - STL
1 stop3h 59mDelta
Deal found 4/16$233
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Tue 5/206:47 pmSTL - BWI
1 stop4h 06mAmerican Airlines
Wed 5/215:27 pmBWI - STL
1 stop4h 59mAmerican Airlines
Deal found 4/17$245
This United Airlines deal was found by Cheapflights users on 4/16. 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 6/298:00 amSTL - DCA
1 stop3h 58mUnited Airlines
Mon 7/147:00 pmDCA - STL
1 stop4h 45mUnited Airlines
Deal found 4/16$249
This Mytrip deal was found by Cheapflights users on 4/17. 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.
Thu 5/1510:10 amSTL - BWI
1 stop11h 31mMultiple Airlines
Sun 5/188:10 amBWI - STL
2 stops28h 35mMultiple Airlines
Deal found 4/17$255
This Mytrip deal was found by Cheapflights users on 4/16. 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.
Thu 6/126:12 pmSTL - BWI
1 stop11h 52mSpirit Airlines
Sun 6/158:38 pmBWI - STL
1 stop14h 55mSpirit Airlines
Deal found 4/16$258

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 April 17, 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

Mon 4/28

5:41 pm-3:07 pm

1 stop20h 26m

Baltimore/Washington

Wed 4/30

1:57 pm-12:04 am

1 stop11h 07m

$194

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Fri 7/4

8:30 am-11:25 am

Nonstop1h 55m

Washington, D.C. Reagan-National

Sun 7/6

4:05 pm-7:55 pm

1 stop4h 50m

$210

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Sat 5/24

3:47 pm-6:45 pm

Nonstop1h 58m

Washington, D.C. Reagan-National

Sat 5/31

10:20 am-11:52 am

Nonstop2h 32m

$213

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Sat 5/24

3:40 pm-11:35 pm

1 stop6h 55m

Washington, D.C. Dulles Intl

Sat 5/31

6:00 am-11:54 am

1 stop6h 54m

$217

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Wed 4/30

6:58 pm-4:59 pm

1 stop21h 01m

Washington, D.C. Reagan-National

Sun 5/4

7:00 am-9:09 am

1 stop27h 09m

$217

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Sun 5/18

5:45 pm-4:36 pm

1 stop21h 51m

Washington, D.C. Dulles Intl

Fri 5/23

1:17 pm-11:52 pm

1 stop11h 35m

$228

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Sat 9/6

8:25 am-11:31 am

Nonstop2h 06m

Washington, D.C. Dulles Intl

Sat 9/13

8:20 am-9:48 am

Nonstop2h 28m

$229

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Sat 5/31

12:59 pm-6:22 pm

1 stop4h 23m

Washington, D.C. Reagan-National

Sat 6/7

6:00 am-11:54 am

1 stop6h 54m

$233

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Tue 5/20

6:47 pm-11:53 pm

1 stop4h 06m

Baltimore/Washington

Wed 5/21

5:27 pm-9:26 pm

1 stop4h 59m

$245

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Sun 6/29

8:00 am-12:58 pm

1 stop3h 58m

Washington, D.C. Reagan-National

Mon 7/14

7:00 pm-10:45 pm

1 stop4h 45m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 52 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, August is the cheapest month in which you can book a flight from St. Louis to Maryland (average of $241). Flying from St. Louis to Maryland in March is currently the most expensive (average of $290). 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 April 17, 2025.

When flying from St. Louis to Maryland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Maryland by month

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

In terms of precipitation, rainfall in Maryland ranges from 2.9 - 4.1 inches per month. July is typically the wettest month, when rainfall can reach 4.1 in. February is typically the driest time to visit Maryland when rainfall is around 2.9 in.

Temperature in Maryland by month

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

If weather is an important factor for your trip to Maryland, 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 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

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 April 17, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from St. Louis to Maryland to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,887 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,887 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,916 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 9 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • 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 Frontier ($88), Spirit Airlines ($90), and United Airlines ($100).

  • 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 - Philadelphia or Lambert-St Louis - Baltimore/Washington 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 $278 for a flight from St. Louis to Maryland. The cheapest flight overall is $108 while the most popular route, (Lambert-St Louis - Washington, D.C. Dulles Intl) is currently priced at $204.

  • 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, August is the cheapest month in which you can book a flight from St. Louis to Maryland (average of $241). Flying from St. Louis to Maryland in March is currently the most expensive (average of $290). 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 5 airlines flying from St. Louis to Maryland

Discover the top 5 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$190FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$176Average$479FlexibilityNo cancel feeOn-time71%
DeltaCheapest$186Average$340FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$197Average$378FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$232Average$354FlexibilityNo cancel feeOn-time69%

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