How many flights depart from St. Louis to Maryland on average per day?

16 flights are operational daily from St. Louis to Maryland as of April 2026. The most popular departure time for this route is 4:00PM, with 52% of flights per day taking off in the afternoon.

What airlines fly to Maryland?

Southwest, Frontier and American Airlines are the top three most popular airlines that fly to Maryland from St. Louis according to our data. Southwest is the first choice among our users, with 74% of people opting to fly with this airline when traveling to Maryland. Keep in mind that there are 4 different airlines that fly to Maryland on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Lambert-St Louis to Maryland?

Frontier, Southwest, and Delta are the most popular carriers operating from Lambert-St Louis to Maryland

How many flights depart from St. Louis to Maryland on average per week?

As of April 2026, 118 flights take off from St. Louis and land in Maryland each week. The most common flight departure day for this route is Thu, with 23% of weekly flights taking off on this day.

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?

There are 6 operators available for flights from Lambert-St Louis Airport to Maryland as of April 2026.

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.

$60 Cheap Flights from St. Louis to Maryland in 2026

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Find the cheapest flights from St. Louis to Maryland

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:59 pm - 4:40 pm

STL

BWI

22h 41m

1 stop

5:45 pm - 11:19 pm

BWI

STL

6h 34m

1 stop

$140Frontier

Thu, Apr 23 - Sat, Apr 25

8:23 pm - 8:10 am

STL

PHL

10h 47m

1 stop

5:01 am - 10:49 am

PHL

STL

6h 48m

1 stop

$140Frontier

Fri, Apr 24 - Sun, Apr 26

4:59 pm - 7:41 am

STL

PHL

13h 42m

1 stop

10:38 pm - 11:19 pm

PHL

STL

25h 41m

1 stop

$141Frontier

Wed, Apr 22 - Thu, Apr 23

6:33 pm - 7:43 am

STL

BWI

12h 10m

1 stop

9:32 pm - 5:30 pm

BWI

STL

20h 58m

1 stop

$144Frontier

Tue, Jun 2 - Wed, Jun 10

4:59 pm - 11:40 am

STL

PHL

17h 41m

1 stop

5:01 am - 10:49 am

PHL

STL

6h 48m

1 stop

$151Frontier

Wed, Apr 22 - Sun, Apr 26

11:21 am - 9:57 pm

STL

PHL

9h 36m

1 stop

7:00 am - 6:50 am

PHL

STL

24h 50m

1 stop

$165Multiple Airlines

Thu, Apr 30 - Sun, May 3

3:40 pm - 6:40 pm

STL

DCA

2h 00mnonstop

11:45 am - 2:50 pm

DCA

STL

4h 05m

1 stop

$243Southwest

Tue, Jun 2 - Wed, Jun 10

8:05 am - 11:05 am

STL

DCA

2h 00mnonstop

6:55 am - 12:40 pm

DCA

STL

6h 45m

1 stop

$247Southwest

Tue, May 5 - Wed, May 6

12:27 pm - 7:05 pm

STL

DCA

5h 38m

1 stop

5:00 am - 8:30 am

DCA

STL

4h 30m

1 stop

$257American Airlines

Tue, May 5 - Wed, May 6

5:48 pm - 10:58 pm

STL

SBY

4h 10m

1 stop

6:41 am - 12:09 pm

SBY

STL

6h 28m

1 stop

$500American Airlines

Sat, Aug 1 - Fri, Aug 7

Frontier flights from St. Louis to Maryland

Our best Frontier deals on St. Louis to Maryland flight tickets

Frontier

Apr 24

STL8:23 pmLambert-St Louis

10h 47m

1 stop

PHL8:10 amPhiladelphia

Apr 26

PHL5:01 amPhiladelphia

6h 48m

1 stop

STL10:49 amLambert-St Louis

$140

Frontier

Apr 22

STL4:59 pmLambert-St Louis

13h 42m

1 stop

PHL7:41 amPhiladelphia

Apr 23

PHL10:38 pmPhiladelphia

25h 41m

1 stop

STL11:19 pmLambert-St Louis

$141

Frontier

Jun 2

STL6:33 pmLambert-St Louis

12h 10m

1 stop

BWI7:43 amBaltimore/Washington

Jun 10

BWI9:32 pmBaltimore/Washington

20h 58m

1 stop

STL5:30 pmLambert-St Louis

$144

United Airlines flights from St. Louis to Maryland

Our best United Airlines deals on St. Louis to Maryland flight tickets

United Airlines

Apr 23

STL8:21 amLambert-St Louis

6h 42m

1 stop

IAD4:03 pmWashington, D.C. Dulles Intl

Apr 25

IAD9:00 amWashington, D.C. Dulles Intl

2h 31m

STL10:31 amLambert-St Louis

$275

United Airlines

Apr 28

STL6:30 amLambert-St Louis

4h 18m

1 stop

IAD11:48 amWashington, D.C. Dulles Intl

May 5

IAD9:00 amWashington, D.C. Dulles Intl

2h 28m

STL10:28 amLambert-St Louis

$291

United Airlines

Apr 15

STL8:30 amLambert-St Louis

2h 13m

IAD11:43 amWashington, D.C. Dulles Intl

Apr 22

IAD5:41 pmWashington, D.C. Dulles Intl

7h 16m

1 stop

STL11:57 pmLambert-St Louis

$387

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Thu 4/23

4:59 pm-4:40 pm

1 stop22h 41m

Baltimore/Washington

Sat 4/25

5:45 pm-11:19 pm

1 stop6h 34m

$140

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Fri 4/24

8:23 pm-8:10 am

1 stop10h 47m

Philadelphia

Sun 4/26

5:01 am-10:49 am

1 stop6h 48m

$140

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Wed 4/22

4:59 pm-7:41 am

1 stop13h 42m

Philadelphia

Thu 4/23

10:38 pm-11:19 pm

1 stop25h 41m

$141

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Tue 6/2

6:33 pm-7:43 am

1 stop12h 10m

Baltimore/Washington

Wed 6/10

9:32 pm-5:30 pm

1 stop20h 58m

$144

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Wed 4/22

4:59 pm-11:40 am

1 stop17h 41m

Philadelphia

Sun 4/26

5:01 am-10:49 am

1 stop6h 48m

$151

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Thu 4/30

11:21 am-9:57 pm

1 stop9h 36m

Philadelphia

Sun 5/3

7:00 am-6:50 am

1 stop24h 50m

$165

Quickest round-trip

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Tue 6/2

3:40 pm-6:40 pm

Nonstop2h 00m

Washington, D.C. Reagan-National

Wed 6/10

11:45 am-2:50 pm

1 stop4h 05m

$243

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Tue 5/5

8:05 am-11:05 am

Nonstop2h 00m

Washington, D.C. Reagan-National

Wed 5/6

6:55 am-12:40 pm

1 stop6h 45m

$247

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Tue 5/5

12:27 pm-7:05 pm

1 stop5h 38m

Washington, D.C. Reagan-National

Wed 5/6

5:00 am-8:30 am

1 stop4h 30m

$257

St. LouisSalisbury

STL - SBY

STLSBY

Lambert-St Louis

Sat 8/1

5:48 pm-10:58 pm

1 stop4h 10m

Salisbury-Ocean City

Fri 8/7

6:41 am-12:09 pm

1 stop6h 28m

$500

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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 $262.

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 Tuesday. Travelers who choose to depart for Maryland on a Tuesday will often find tickets for as low as $366. The most expensive day to fly to Maryland is Wednesday, with ticket prices averaging around $475.

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 afternoon. Flights from St. Louis to Maryland during this time can be as low as $333. In contrast, the most expensive time of day to depart to Maryland is at noon when prices are around $789.

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 $379 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 $236 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?

You could potentially save up to 17% on your flight if you consider stops on a St. Louis to Maryland flight.

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	$199
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 $199. The best round-trip flight deal from St. Louis to Maryland found on momondo in the last 72 hours is $399.

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

Frequently asked questions about flying from St. Louis to Maryland

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?
There are 6 operators available for flights from Lambert-St Louis Airport to Maryland as of April 2026.
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?
momondo data reveals that the most frequently booked plane model on the route from St. Louis to Maryland is Boeing 737 MAX 8, representing 39.78% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 27.42%, Canadair (Bombardier) Regional Jet CRJ-550 at 12.90%, and Airbus A321-100/200 at 3.23%.

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
Frontier	PriceFrom $147	Free Cancellation	Rating 5.7 3,000 reviews	Search Frontier flights
American Airlines	PriceFrom $196	Free Cancellation	Rating 7.1 11,552 reviews	Search American Airlines flights
Delta	PriceFrom $196	Free Cancellation	Rating 7.9 8,374 reviews	Search Delta flights
Southwest	PriceFrom $251	Free Cancellation	Rating 8.0 4,344 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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Flights to Fort Lauderdalefrom $47

Cheap flights from St. Louis to Maryland from $60

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 6/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

What is the cheapest month to fly to Maryland?

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

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

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

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

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

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

What is the cheapest airline that flies from Lambert-St Louis to Maryland?

What airlines fly to Maryland?

How many flights depart from St. Louis to Maryland on average per day?

How many flights depart from St. Louis to Maryland on average per week?

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

Fastest flight time

Direct flights

Airports in Maryland

Frequently asked questions about flying 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

Why use momondo?

An easier way to manage your Maryland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Maryland

Popular cities in Maryland

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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