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

Flights from Maryland to Lambert-St Louis have been viewed 8 times in the past calendar month.

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 $78. However, be on the lookout for offers from United Airlines and Southwest, 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, Baltimore/Washington - Lambert-St Louis and Philadelphia - Lambert-St Louis.

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

On average you can expect to pay $296 for a flight from Maryland to St. Louis. The cheapest flight overall is $88 while the most popular route, (Washington, D.C. Dulles Intl - Lambert-St Louis) is currently priced at $179.

What are the most popular airlines that fly from Maryland to St. Louis?

The most popular airlines flying from Maryland to St. Louis are American Airlines, Delta and Frontier. Something to consider prior to booking your flight.

How far in advance should I book a flight from Maryland to St. Louis?

Find a great deal and save up to 192% by booking at least 59 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Maryland to St. Louis within the next two weeks, with the cheapest ticket starting at $411.

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

Flights from Maryland to St. Louis lean towards being more expensive in March. Prices are generally better when you fly from Maryland to St. Louis in August, with the cheapest ticket starting at $177.

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.

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.

$78+ Flights from Maryland to St. Louis

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Cheap flight deals from Maryland to St. Louis

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$191 (CheapOair)
One-way from	$78 (Trip.com)
Popular in	March
Cheapest in	August
Average price	$337
Good round-trip deal	$314 or less
Good one-way deal	$133 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. 7% potential increase in price ($27 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 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.

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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 April 24, 2025.

Sat 4/269:12 pmBWI - STL

1 stop27h 52mFrontier

Tue 4/295:41 pmSTL - BWI

1 stop20h 00mFrontier

Deal found 4/23

$181

Sat 5/109:21 pmBWI - STL

1 stop27h 45mMultiple Airlines

Sat 5/1710:10 amSTL - BWI

1 stop6h 16mMultiple Airlines

Deal found 4/22

$196

Fri 5/165:26 pmIAD - STL

1 stop7h 48mFrontier

Sun 5/185:45 pmSTL - IAD

1 stop21h 51mFrontier

Deal found 4/22

$208

Thu 4/241:00 pmDCA - STL

1 stop22h 01mFrontier

Mon 4/286:58 pmSTL - DCA

1 stop16h 11mFrontier

Deal found 4/23

$208

Thu 5/293:00 pmDCA - STL

Nonstop2h 15mSouthwest

Tue 6/35:00 pmSTL - DCA

1 stop5h 40mSouthwest

Deal found 4/22

$214

Thu 5/291:54 pmDCA - STL

Nonstop2h 17mAmerican Airlines

Fri 5/306:00 amSTL - DCA

1 stop4h 49mAmerican Airlines

Deal found 4/23

$219

Thu 5/296:00 amIAD - STL

1 stop4h 35mDelta

Tue 6/36:00 amSTL - IAD

1 stop4h 58mDelta

Deal found 4/22

$224

Thu 5/297:59 amDCA - STL

1 stop5h 05mDelta

Tue 6/32:15 pmSTL - DCA

1 stop3h 44mDelta

Deal found 4/23

$224

Thu 6/192:08 pmBWI - STL

1 stop3h 56mSpirit Airlines

Sun 6/226:12 pmSTL - BWI

1 stop11h 52mSpirit Airlines

Deal found 4/23

$234

Wed 6/43:40 pmIAD - STL

1 stop6h 45mUnited Airlines

Tue 6/108:15 amSTL - IAD

Nonstop2h 08mUnited Airlines

Deal found 4/22

$235

Thu 9/1812:23 pmBWI - STL

1 stop24h 06mSun Country Air

Sun 9/217:34 amSTL - BWI

1 stop8h 07mSun Country Air

Deal found 4/23

$245

Tue 5/277:26 amBWI - STL

1 stop6h 41mAmerican Airlines

Thu 5/291:59 pmSTL - BWI

1 stop4h 28mAmerican Airlines

Deal found 4/23

$249

Best flights from Maryland to St. Louis
Discover carefully curated flight deals from Maryland to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2025.

Tue 5/610:40 amBWI - STL

1 stop14h 26mFrontier

Thu 5/85:45 pmSTL - BWI

1 stop23h 51mFrontier

Deal found 4/23

$191

Sat 5/109:21 pmBWI - STL

1 stop27h 45mMultiple Airlines

Sat 5/1710:10 amSTL - BWI

1 stop6h 16mMultiple Airlines

Deal found 4/22

$196

Thu 5/293:00 pmDCA - STL

Nonstop2h 15mSouthwest

Tue 6/35:00 pmSTL - DCA

1 stop5h 40mSouthwest

Deal found 4/23

$214

Thu 5/291:54 pmDCA - STL

Nonstop2h 17mAmerican Airlines

Fri 5/306:00 amSTL - DCA

1 stop4h 49mAmerican Airlines

Deal found 4/23

$219

Thu 5/299:40 amIAD - STL

1 stop4h 39mDelta

Tue 6/36:45 amSTL - IAD

1 stop4h 21mDelta

Deal found 4/23

$224

Thu 6/192:08 pmBWI - STL

1 stop3h 56mSpirit Airlines

Sun 6/226:12 pmSTL - BWI

1 stop11h 52mSpirit Airlines

Deal found 4/23

$234

Thu 9/1812:23 pmBWI - STL

1 stop24h 06mSun Country Air

Sun 9/217:34 amSTL - BWI

1 stop8h 07mSun Country Air

Deal found 4/23

$245

Mon 5/268:40 amIAD - STL

Nonstop2h 16mUnited Airlines

Fri 5/308:10 amSTL - IAD

1 stop6h 59mUnited Airlines

Deal found 4/23

$253

Fri 5/95:26 pmIAD - STL

1 stop7h 48mFrontier

Sat 5/105:45 pmSTL - IAD

1 stop21h 51mFrontier

Deal found 4/23

$211

Thu 5/298:59 amDCA - STL

1 stop6h 36mDelta

Tue 6/31:09 pmSTL - DCA

1 stop4h 13mDelta

Deal found 4/24

$224

Fri 5/166:00 pmDCA - STL

1 stop16h 59mFrontier

Mon 5/196:53 pmSTL - DCA

1 stop16h 14mFrontier

Deal found 4/22

$221

Tue 5/277:26 amBWI - STL

1 stop6h 41mAmerican Airlines

Thu 5/291:59 pmSTL - BWI

1 stop4h 28mAmerican Airlines

Deal found 4/23

$249

Last-minute flights from Maryland to St. Louis
Discover last-minute flight deals from Maryland to St. Louis. Data last updated April 24, 2025 and is based on user searches.

Thu 4/241:00 pmDCA - STL

1 stop22h 01mFrontier

Mon 4/286:58 pmSTL - DCA

1 stop16h 11mFrontier

Deal found 4/23

$208

Sat 4/269:12 pmBWI - STL

1 stop27h 52mFrontier

Tue 4/295:41 pmSTL - BWI

1 stop20h 00mFrontier

Deal found 4/23

$181

Tue 4/2910:45 amBWI - STL

1 stop14h 19mFrontier

Fri 5/25:55 pmSTL - BWI

1 stop23h 41mFrontier

Deal found 4/23

$191

Tue 4/296:57 amPHL - STL

1 stop11h 18mMultiple Airlines

Thu 5/11:00 pmSTL - PHL

3 stops29h 36mMultiple Airlines

Deal found 4/22

$410

Thu 5/17:00 amDCA - STL

1 stop9h 07mFrontier

Sat 5/38:15 pmSTL - DCA

1 stop14h 52mFrontier

Deal found 4/23

$211

Thu 5/112:45 pmIAD - STL

1 stop23h 46mMultiple Airlines

Sat 5/39:50 amSTL - IAD

3 stops24h 57mMultiple Airlines

Deal found 4/22

$421

Fri 5/25:26 pmIAD - STL

1 stop7h 48mFrontier

Sun 5/49:55 pmSTL - IAD

1 stop31h 36mFrontier

Deal found 4/23

$217

Fri 5/26:12 pmBWI - STL

1 stop16h 47mMultiple Airlines

Sun 5/48:00 amSTL - BWI

1 stop26h 30mMultiple Airlines

Deal found 4/23

$284

Sat 5/37:35 amBWI - STL

1 stop5h 06mDelta

Sun 5/46:50 amSTL - BWI

1 stop4h 02mDelta

Deal found 4/23

$357

Sat 5/37:05 pmPHL - STL

1 stop23h 10mSpirit Airlines

Tue 5/66:10 pmSTL - PHL

2 stops27h 26mSpirit Airlines

Deal found 4/22

$400

Sat 5/36:45 amBWI - STL

1 stop5h 18mUnited Airlines

Sun 5/46:30 amSTL - BWI

1 stop6h 46mUnited Airlines

Deal found 4/23

$427

Sat 5/37:45 amDCA - STL

1 stop10h 05mDelta

Fri 6/65:40 pmSTL - DCA

1 stop4h 02mDelta

Deal found 4/23

$432

One-way flights from Maryland to St. Louis
Search for one-way flight options from Maryland to St. Louis. Find affordable one-way fares based on user searches. Data last updated April 24, 2025.

Tue 5/203:52 pmPHL - STL

1 stop8h 52mFrontier

Deal found 4/23

$78

Sat 4/265:35 pmIAD - STL

1 stop7h 29mFrontier

Deal found 4/23

$89

Sun 5/258:40 amIAD - STL

Nonstop2h 16mUnited Airlines

Deal found 4/23

$90

Sat 5/246:50 pmDCA - STL

Nonstop2h 15mSouthwest

Deal found 4/22

$90

Fri 5/307:57 pmBWI - STL

1 stop14h 18mSpirit Airlines

Deal found 4/23

$93

Sat 5/2412:14 pmBWI - STL

1 stop12h 30mFrontier

Deal found 4/24

$95

Tue 4/291:00 pmDCA - STL

1 stop22h 01mFrontier

Deal found 4/22

$95

Fri 5/306:22 pmPHL - STL

1 stop15h 53mSpirit Airlines

Deal found 4/23

$97

Sat 5/2410:09 amIAD - STL

1 stop7h 26mDelta

Deal found 4/23

$100

Sat 5/247:11 pmDCA - STL

1 stop4h 34mUnited Airlines

Deal found 4/22

$100

Sat 6/72:59 pmDCA - STL

Nonstop2h 16mAmerican Airlines

Deal found 4/23

$115

Tue 5/276:18 pmBWI - STL

1 stop6h 20mDelta

Deal found 4/24

$118

Cheapflights Fare Finder

Use the filters below to find and compare flights from Maryland to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Sat 4/26

9:12 pm-12:04 am

1 stop27h 52m

Lambert-St Louis

Tue 4/29

5:41 pm-2:41 pm

1 stop20h 00m

$181

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Sat 5/10

9:21 pm-12:06 am

1 stop27h 45m

Lambert-St Louis

Sat 5/17

10:10 am-5:26 pm

1 stop6h 16m

$196

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Fri 5/16

5:26 pm-12:14 am

1 stop7h 48m

Lambert-St Louis

Sun 5/18

5:45 pm-4:36 pm

1 stop21h 51m

$208

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Thu 5/1

7:00 am-3:07 pm

1 stop9h 07m

Lambert-St Louis

Sat 5/3

8:15 pm-12:07 pm

1 stop14h 52m

$211

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Thu 5/29

3:00 pm-4:15 pm

Nonstop2h 15m

Lambert-St Louis

Tue 6/3

5:00 pm-11:40 pm

1 stop5h 40m

$214

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Thu 5/29

1:54 pm-3:11 pm

Nonstop2h 17m

Lambert-St Louis

Fri 5/30

6:00 am-11:49 am

1 stop4h 49m

$219

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Thu 5/29

6:00 am-9:35 am

1 stop4h 35m

Lambert-St Louis

Tue 6/3

6:00 am-11:58 am

1 stop4h 58m

$224

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Thu 5/29

7:59 am-12:04 pm

1 stop5h 05m

Lambert-St Louis

Tue 6/3

2:15 pm-6:59 pm

1 stop3h 44m

$224

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Thu 6/19

2:08 pm-5:04 pm

1 stop3h 56m

Lambert-St Louis

Sun 6/22

6:12 pm-7:04 am

1 stop11h 52m

$234

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Wed 6/4

3:40 pm-9:25 pm

1 stop6h 45m

Lambert-St Louis

Tue 6/10

8:15 am-11:23 am

Nonstop2h 08m

$235

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 54 results

...

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, August is the cheapest month in which you can book a flight from Maryland to St. Louis (average of $311). Flying from Maryland to St. Louis in March is currently the most expensive (average of $356). 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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Maryland to St. Louis as you normally would.

Rainfall in St. Louis by month

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

To help decide which airline to fly from Maryland to St. Louis, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,918 reviews

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

9,918 reviews

Alaska Airlines

8.0

Very good

9,918 reviews

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

4,286 reviews

Alaska Airlines

8.0

Very good

9,918 reviews

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

7,920 reviews

Alaska Airlines

8.0

Very good

9,918 reviews

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

8,685 reviews

Alaska Airlines

8.0

Very good

9,918 reviews

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

9,918 reviews

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

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 8 times in the past calendar month.
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 $78. However, be on the lookout for offers from United Airlines and Southwest, 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, Baltimore/Washington - Lambert-St Louis and Philadelphia - Lambert-St Louis.
What are the cheapest flights from Maryland to St. Louis?
On average you can expect to pay $296 for a flight from Maryland to St. Louis. The cheapest flight overall is $88 while the most popular route, (Washington, D.C. Dulles Intl - Lambert-St Louis) is currently priced at $179.
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, August is the cheapest month in which you can book a flight from Maryland to St. Louis (average of $311). Flying from Maryland to St. Louis in March is currently the most expensive (average of $356). 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

Fenton

Maryland Heights

Fairview Heights

Collinsville

Wentzville

Eureka

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Glencoe

Alton

Farmington

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Top 5 airlines flying from Maryland to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$108	Average$215	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$168	Average$381	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$176	Average$315	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$197	Average$381	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$288	Average$548	FlexibilityNo cancel fee	On-time69%

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$78+ 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Maryland to St. Louis with Cheapflights

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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 April 24, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Maryland to St. Louis

Cheapest flights from Maryland to St. LouisExplore 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 April 24, 2025.

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 April 24, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Maryland to St. Louis that are best for you.

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.

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?

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 April 24, 2025.

Rainfall in St. Louis by month

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

Temperature in St. Louis by month

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

Reviews of airlines servicing 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?

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

What are the cheapest airlines to fly from Maryland to St. Louis one-way?

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

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

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

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

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

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

Traveling to a place near Maryland?

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Alternative routes for Maryland to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Maryland to St. Louis

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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 April 24, 2025.