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Cheap flights from St. Louis to Maryland from $63

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Maryland departing on 1/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Maryland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:22 pm - 11:14 am
STL
-
PHL
13h 52m1 stop
Frontier Logo
8:25 pm - 11:33 pm
PHL
-
STL
28h 08m1 stop
$130Frontier
Mon, Jan 26 - Tue, Jan 27
Frontier Logo
5:42 pm - 10:37 am
STL
-
PHL
15h 55m1 stop
Frontier Logo
6:20 pm - 6:51 am
PHL
-
STL
13h 31m1 stop
$133Frontier
Tue, Jan 20 - Tue, Jan 27
Multiple Airlines Logo
5:11 pm - 5:43 pm
STL
-
PHL
23h 32m1 stop
Multiple Airlines Logo
8:43 pm - 7:54 am
PHL
-
STL
12h 11m1 stop
$137Multiple Airlines
Mon, Jan 12 - Thu, Jan 15
Frontier Logo
5:11 pm - 8:37 am
STL
-
PHL
14h 26m1 stop
Frontier Logo
4:08 pm - 10:34 pm
PHL
-
STL
7h 26m1 stop
$139Frontier
Wed, Jan 7 - Wed, Jan 14
Multiple Airlines Logo
8:32 pm - 11:14 am
STL
-
PHL
13h 42m1 stop
Multiple Airlines Logo
8:43 pm - 11:33 pm
PHL
-
STL
27h 50m1 stop
$150Multiple Airlines
Wed, Jan 14 - Wed, Jan 21
Southwest Logo
8:20 am - 11:15 am
STL
-
DCA
1h 55mnonstop
Southwest Logo
12:00 pm - 1:35 pm
DCA
-
STL
2h 35mnonstop
$231Southwest
Tue, Jan 13 - Tue, Jan 20
American Airlines Logo
9:54 am - 12:59 pm
STL
-
DCA
2h 05mnonstop
American Airlines Logo
7:40 am - 9:24 am
DCA
-
STL
2h 44mnonstop
$235American Airlines
Wed, Jan 7 - Sat, Jan 10
Southwest Logo
8:20 am - 1:00 pm
STL
-
DCA
3h 40m1 stop
Southwest Logo
8:00 am - 9:35 am
DCA
-
STL
2h 35mnonstop
$241Southwest
Tue, Jan 13 - Tue, Jan 20
American Airlines Logo
9:33 am - 4:50 pm
STL
-
DCA
6h 17m1 stop
American Airlines Logo
3:30 pm - 5:02 pm
DCA
-
STL
2h 32mnonstop
$245American Airlines
Wed, Jan 7 - Sat, Jan 10
Delta Logo
12:00 pm - 5:17 pm
STL
-
IAD
4h 17m1 stop
Delta Logo
5:26 pm - 8:43 pm
IAD
-
STL
4h 17m1 stop
$251Delta
Tue, Jan 13 - Tue, Jan 20

Frontier flights from St. Louis to Maryland

Our best Frontier deals on St. Louis to Maryland flight tickets
Frontier
Jan 26
STL8:22 pmLambert-St Louis
13h 52m
1 stop
PHL11:14 amPhiladelphia
Jan 27
PHL8:25 pmPhiladelphia
28h 08m
1 stop
STL11:33 pmLambert-St Louis
$130
Find similar
Frontier
Jan 20
STL5:42 pmLambert-St Louis
15h 55m
1 stop
PHL10:37 amPhiladelphia
Jan 27
PHL6:20 pmPhiladelphia
13h 31m
1 stop
STL6:51 amLambert-St Louis
$133
Find similar
Frontier
Jan 7
STL5:11 pmLambert-St Louis
14h 26m
1 stop
PHL8:37 amPhiladelphia
Jan 14
PHL4:08 pmPhiladelphia
7h 26m
1 stop
STL10:34 pmLambert-St Louis
$139
Find similar

Southwest flights from St. Louis to Maryland

Our best Southwest deals on St. Louis to Maryland flight tickets
Southwest
Jan 13
STL8:20 amLambert-St Louis
1h 55m
DCA11:15 amWashington, D.C. Reagan-National
Jan 20
DCA12:00 pmWashington, D.C. Reagan-National
2h 35m
STL1:35 pmLambert-St Louis
$231
Find similar
Southwest
Dec 25
STL1:10 pmLambert-St Louis
2h 00m
DCA4:10 pmWashington, D.C. Reagan-National
Dec 31
DCA3:20 pmWashington, D.C. Reagan-National
4h 10m
1 stop
STL6:30 pmLambert-St Louis
$237
Find similar
Southwest
Jan 13
STL8:20 amLambert-St Louis
3h 40m
1 stop
DCA1:00 pmWashington, D.C. Reagan-National
Jan 20
DCA8:00 amWashington, D.C. Reagan-National
2h 35m
STL9:35 amLambert-St Louis
$241
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 16, 2025.
Use the filters below to find and compare flights from St. Louis to Maryland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Mon 1/26

8:22 pm-11:14 am

1 stop13h 52m

Philadelphia

Tue 1/27

8:25 pm-11:33 pm

1 stop28h 08m

$130

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Tue 1/20

5:42 pm-10:37 am

1 stop15h 55m

Philadelphia

Tue 1/27

6:20 pm-6:51 am

1 stop13h 31m

$133

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Mon 1/12

5:11 pm-5:43 pm

1 stop23h 32m

Philadelphia

Thu 1/15

8:43 pm-7:54 am

1 stop12h 11m

$137

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Wed 1/7

5:11 pm-8:37 am

1 stop14h 26m

Philadelphia

Wed 1/14

4:08 pm-10:34 pm

1 stop7h 26m

$139

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Wed 1/14

8:32 pm-11:14 am

1 stop13h 42m

Philadelphia

Wed 1/21

8:43 pm-11:33 pm

1 stop27h 50m

$150

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Tue 1/13

8:20 am-11:15 am

Nonstop1h 55m

Washington, D.C. Reagan-National

Tue 1/20

12:00 pm-1:35 pm

Nonstop2h 35m

$231

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Wed 1/7

9:54 am-12:59 pm

Nonstop2h 05m

Washington, D.C. Reagan-National

Sat 1/10

7:40 am-9:24 am

Nonstop2h 44m

$235

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Tue 1/13

8:20 am-1:00 pm

1 stop3h 40m

Washington, D.C. Reagan-National

Tue 1/20

8:00 am-9:35 am

Nonstop2h 35m

$241

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Wed 1/7

9:33 am-4:50 pm

1 stop6h 17m

Washington, D.C. Reagan-National

Sat 1/10

3:30 pm-5:02 pm

Nonstop2h 32m

$245

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Tue 1/13

12:00 pm-5:17 pm

1 stop4h 17m

Washington, D.C. Dulles Intl

Tue 1/20

5:26 pm-8:43 pm

1 stop4h 17m

$251

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Maryland from

How to get the cheapest flight ticket from St. Louis to Maryland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Maryland?

The cheapest month to fly to Maryland from St. Louis is in August. Flight prices, which tend to average around $229, are often lower during this time because this is during the off-season. If you don’t want to visit Maryland in August, then you should wait until October to fly from St. Louis, when ticket prices are also cheap, with an average price of $255.

What is the cheapest day to depart on your flight to Maryland?

The cheapest day to depart from St. Louis to Maryland is on a Friday. Travelers who choose to depart for Maryland on a Friday will often find tickets for as low as $362. The most expensive day to fly to Maryland is Saturday, with ticket prices averaging around $500.

What is the cheapest time of day to depart on your flight to Maryland?

Our most recent data shows that the best time of day to fly to Maryland is in the evening. Flights from St. Louis to Maryland during this time can be as low as $296. In contrast, the most expensive time of day to depart to Maryland is at noon when prices are around $915.

What is the cheapest Lambert-St Louis to Maryland flight route?

Fly from Lambert-St Louis to Baltimore/Washington for the best Lambert-St Louis - Maryland flight prices

How far in advance should I book a flight to Maryland?

You are more likely to see cheaper flights to Maryland from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Maryland for around $372 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Maryland from St. Louis for as low as $212 on momondo.

What cabin class options are available on Lambert-St Louis to Maryland flights?

There is only 1 cabin class available to choose from on Lambert-St Louis to Maryland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Maryland flights?

No. A direct flight is the cheapest option for a flight between St. Louis to Maryland.

Cheap St. Louis to Maryland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Maryland

Best Price Found

$269

Fastest flight time

1h 55m

Direct flights

Every day

Airports in Maryland

112 airports
The best one-way flight to Maryland from St. Louis in the past 72 hours is $269. The best round-trip flight deal from St. Louis to Maryland found on momondo in the last 72 hours is $423.
The fastest flight from St. Louis to Maryland takes 1h 55m
Direct flights go from St. Louis to Maryland every day.
There are 112 airports in Maryland. From St. Louis there are direct flights to Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Philadelphia (PHL), Washington, D.C. Dulles Intl (IAD).
Search flight deals

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Maryland?

    Prices for flights from Lambert-St Louis Airport to Maryland refresh daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Maryland?

  • How old do you have to be to fly from Lambert-St Louis Airport to Maryland?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Maryland.

  • What documentation or ID do you need to fly to Maryland?

    The travel and health documents you'll need for your trip to Maryland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Maryland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from St. Louis to Maryland?

Best airlines flying from St. Louis to Maryland

Compare and see reviews for airlines that fly from St. Louis to Maryland with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $129Free CancellationRating
5.8
3,082 reviews
Search Frontier flights
American AirlinesPriceFrom $196Free CancellationRating
7.2
11,047 reviews
Search American Airlines flights
DeltaPriceFrom $196Free CancellationRating
7.9
8,009 reviews
Search Delta flights
SouthwestPriceFrom $206Free CancellationRating
7.9
4,250 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Maryland?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Maryland from St. Louis.

Can I find flights from St. Louis to Maryland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Maryland from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to Maryland?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Maryland.

I’m not ready to book a flight from St. Louis to Maryland right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Maryland, momondo offers a useful price alert feature which will track prices for flights to Maryland from St. Louis and alert you when they change.

An easier way to manage your Maryland trip

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