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$55+ 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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BWI
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$110
(Frontier)

One-way from

$55
(Frontier)

Popular in

October

Cheapest in

November

Average price

$293

Good round-trip deal

$362 or less

Good one-way deal

$211 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
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High demand for flights, 0% potential price rise
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 February 2025
Search Deals
Price to beat on a round-trip flight from Lambert-St Louis to Maryland.
Search Deals
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 February 20, 2025.

This Frontier deal was found by Cheapflights users on 2/19. 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 4/235:41 pmSTL - PHL
1 stop12h 51mFrontier
Sat 4/264:28 pmPHL - STL
1 stop8h 36mFrontier
Deal found 2/19$110
This Booking.com deal was found by Cheapflights users on 2/19. 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 4/24:57 pmSTL - BWI
1 stop21h 00mFrontier
Mon 4/78:25 amBWI - STL
1 stop16h 21mFrontier
Deal found 2/19$115
This CheapOair deal was found by Cheapflights users on 2/19. 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.
Sun 3/306:47 pmSTL - PHL
1 stop13h 11mMultiple Airlines
Tue 4/14:16 pmPHL - STL
1 stop8h 30mMultiple Airlines
Deal found 2/19$139
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.
Thu 4/246:11 pmSTL - BWI
1 stop5h 45mMultiple Airlines
Sun 4/276:38 pmBWI - STL
1 stop6h 26mMultiple Airlines
Deal found 2/20$139
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 4/156:11 pmSTL - BWI
1 stop22h 17mSpirit Airlines
Wed 4/236:33 pmBWI - STL
1 stop23h 43mSpirit Airlines
Deal found 2/20$157
This Mytrip deal was found by Cheapflights users on 2/18. 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.
Sun 3/306:47 pmSTL - PHL
1 stop13h 11mSpirit Airlines
Mon 3/317:40 pmPHL - STL
1 stop23h 12mSpirit Airlines
Deal found 2/18$161
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1610:30 amSTL - BWI
1 stop3h 55mSouthwest
Mon 4/214:45 pmBWI - STL
1 stop4h 50mSouthwest
Deal found 2/20$192
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.
Tue 3/2510:19 amSTL - BWI
1 stop4h 21mDelta
Wed 3/266:00 amBWI - STL
1 stop7h 00mDelta
Deal found 2/20$197
This Booking.com deal was found by Cheapflights users on 2/19. 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.
Mon 3/37:04 pmSTL - DCA
1 stop25h 55mFrontier
Thu 3/67:00 amDCA - STL
1 stop27h 16mFrontier
Deal found 2/19$210
This Frontier deal was found by Cheapflights users on 2/19. 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.
Mon 3/1010:36 amSTL - IAD
1 stop5h 37mFrontier
Fri 3/144:10 pmIAD - STL
1 stop8h 39mFrontier
Deal found 2/19$210
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.
Fri 3/214:45 pmSTL - DCA
1 stop4h 49mDelta
Tue 3/252:40 pmDCA - STL
1 stop7h 12mDelta
Deal found 2/20$217
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.
Sat 3/84:40 pmSTL - IAD
1 stop6h 42mDelta
Mon 3/107:35 amIAD - STL
1 stop5h 25mDelta
Deal found 2/20$217

Find flights from St. Louis to Maryland within your budget

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 February 20, 2025.

Fly from

St. Louis

Fly to

Maryland

Route

Depart

Return

Price

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Wed 4/23

5:41 pm-7:32 am

1 stop12h 51m

Philadelphia

Sat 4/26

4:28 pm-12:04 am

1 stop8h 36m

$110

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Wed 4/2

4:57 pm-2:57 pm

1 stop21h 00m

Baltimore/Washington

Mon 4/7

8:25 am-11:46 pm

1 stop16h 21m

$115

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Sun 3/30

6:47 pm-8:58 am

1 stop13h 11m

Philadelphia

Tue 4/1

4:16 pm-11:46 pm

1 stop8h 30m

$139

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Thu 4/24

6:11 pm-12:56 am

1 stop5h 45m

Baltimore/Washington

Sun 4/27

6:38 pm-12:04 am

1 stop6h 26m

$139

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Tue 4/15

6:11 pm-5:28 pm

1 stop22h 17m

Baltimore/Washington

Wed 4/23

6:33 pm-5:16 pm

1 stop23h 43m

$157

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Sun 3/30

6:47 pm-8:58 am

1 stop13h 11m

Philadelphia

Mon 3/31

7:40 pm-5:52 pm

1 stop23h 12m

$161

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Wed 4/16

10:30 am-3:25 pm

1 stop3h 55m

Baltimore/Washington

Mon 4/21

4:45 pm-8:35 pm

1 stop4h 50m

$192

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Tue 3/25

10:19 am-3:40 pm

1 stop4h 21m

Baltimore/Washington

Wed 3/26

6:00 am-12:00 pm

1 stop7h 00m

$197

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Mon 3/3

7:04 pm-9:59 pm

1 stop25h 55m

Washington, D.C. Reagan-National

Thu 3/6

7:00 am-9:16 am

1 stop27h 16m

$210

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Mon 3/10

10:36 am-5:13 pm

1 stop5h 37m

Washington, D.C. Dulles Intl

Fri 3/14

4:10 pm-11:49 pm

1 stop8h 39m

$210

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

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.

Travel insights for flights from St. Louis to Maryland

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

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 February 20, 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 February 20, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

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
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

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
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

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
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

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
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

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
4,411 reviews

Crew

8.7

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

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 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 ($55), Spirit Airlines ($64), and Delta ($99).

  • 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 $338 for a flight from St. Louis to Maryland. The cheapest flight overall is $168 while the most popular route, (Lambert-St Louis - Washington, D.C. Dulles Intl) is currently priced at $171.

  • 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$175FlexibilityNo cancel feeOn-time62%
DeltaCheapest$198Average$341FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$200Average$485FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$211Average$389FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$314Average$363FlexibilityNo cancel feeOn-time69%
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