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$95+ 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BWI
May 5 — May 121
Mon 5/5
Mon 5/12
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 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$199
(American Airlines)

One-way from

$95
(Frontier)

Popular in

March

Cheapest in

November

Average price

$318

Good round-trip deal

$308 or less

Good one-way deal

$164 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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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 ($9 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 30, 2025.

This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/316:47 pmSTL - BWI
1 stop4h 06mAmerican Airlines
Tue 6/107:49 pmBWI - STL
1 stop5h 10mAmerican Airlines
Deal found 4/29$199
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2910:25 amSTL - DCA
Nonstop1h 59mAmerican Airlines
Mon 6/28:15 amDCA - STL
Nonstop2h 27mAmerican Airlines
Deal found 4/29$204
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/295:00 amSTL - IAD
1 stop5h 55mUnited Airlines
Sat 5/318:40 amIAD - STL
Nonstop2h 16mUnited Airlines
Deal found 4/29$204
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/297:30 pmSTL - DCA
Nonstop2h 00mSouthwest
Sat 5/312:25 pmDCA - STL
1 stop6h 35mSouthwest
Deal found 4/29$207
This Booking.com deal was found by Cheapflights users on 4/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/96:53 pmSTL - DCA
1 stop16h 14mFrontier
Fri 5/166:00 pmDCA - STL
1 stop16h 59mFrontier
Deal found 4/29$208
This Booking.com deal was found by Cheapflights users on 4/28. 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.
Wed 5/215:45 pmSTL - BWI
1 stop13h 54mFrontier
Sat 5/242:19 pmBWI - STL
1 stop10h 25mFrontier
Deal found 4/28$208
This Booking.com deal was found by Cheapflights users on 4/28. 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.
Wed 5/215:45 pmSTL - IAD
1 stop17h 47mFrontier
Sat 5/2411:02 amIAD - STL
1 stop13h 42mFrontier
Deal found 4/28$208
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/315:00 pmSTL - BWI
1 stop6h 49mDelta
Sat 6/77:00 amBWI - STL
1 stop5h 54mDelta
Deal found 4/28$209
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/293:40 pmSTL - DCA
1 stop7h 03mDelta
Sun 6/16:59 amDCA - STL
1 stop6h 05mDelta
Deal found 4/29$224
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/245:40 pmSTL - IAD
1 stop4h 55mDelta
Mon 5/266:00 amIAD - STL
1 stop4h 00mDelta
Deal found 4/28$224
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/66:30 amSTL - DCA
1 stop4h 29mUnited Airlines
Wed 6/1110:30 amDCA - STL
1 stop6h 00mUnited Airlines
Deal found 4/29$249
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/1611:28 amSTL - BWI
1 stop10h 29mSpirit Airlines
Thu 6/192:08 pmBWI - STL
1 stop3h 56mSpirit Airlines
Deal found 4/29$250

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 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

Sat 5/31

6:47 pm-11:53 pm

1 stop4h 06m

Baltimore/Washington

Tue 6/10

7:49 pm-11:59 pm

1 stop5h 10m

$199

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Thu 5/29

5:00 am-11:55 am

1 stop5h 55m

Washington, D.C. Dulles Intl

Sat 5/31

8:40 am-9:56 am

Nonstop2h 16m

$204

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Thu 5/29

10:25 am-1:24 pm

Nonstop1h 59m

Washington, D.C. Reagan-National

Mon 6/2

8:15 am-9:42 am

Nonstop2h 27m

$204

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Thu 5/29

7:30 pm-10:30 pm

Nonstop2h 00m

Washington, D.C. Reagan-National

Sat 5/31

2:25 pm-8:00 pm

1 stop6h 35m

$207

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Fri 5/9

6:53 pm-12:07 pm

1 stop16h 14m

Washington, D.C. Reagan-National

Fri 5/16

6:00 pm-9:59 am

1 stop16h 59m

$208

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Wed 5/21

5:45 pm-8:39 am

1 stop13h 54m

Baltimore/Washington

Sat 5/24

2:19 pm-11:44 pm

1 stop10h 25m

$208

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Wed 5/21

5:45 pm-12:32 pm

1 stop17h 47m

Washington, D.C. Dulles Intl

Sat 5/24

11:02 am-11:44 pm

1 stop13h 42m

$208

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Sat 5/31

5:00 pm-12:49 am

1 stop6h 49m

Baltimore/Washington

Sat 6/7

7:00 am-11:54 am

1 stop5h 54m

$209

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Thu 5/29

10:45 am-3:59 pm

1 stop4h 14m

Washington, D.C. Reagan-National

Mon 6/2

6:59 am-12:04 pm

1 stop6h 05m

$224

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Sat 5/24

5:40 pm-11:35 pm

1 stop4h 55m

Washington, D.C. Dulles Intl

Mon 5/26

6:00 am-9:00 am

1 stop4h 00m

$224

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 54 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 30, 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 30, 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
9,968 reviews

Food

7.1

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,936 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 12 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 ($95), American Airlines ($95), and Delta ($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 $281 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 $199.

  • 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$197FlexibilityNo cancel feeOn-time62%
DeltaCheapest$176Average$334FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$176Average$478FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$197Average$377FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$232Average$354FlexibilityNo cancel feeOn-time69%

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