Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Maryland to St. Louis from $55

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Maryland to St. Louis departing on 2/24. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Maryland to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:25 pm - 11:33 pm
PHL
-
STL
28h 08m
1 stop
Frontier Logo
3:49 pm - 12:22 pm
STL
-
PHL
19h 33m
1 stop
$128Frontier
mar., feb. 3 - mar., feb. 10
Frontier Logo
7:12 pm - 6:51 am
PHL
-
STL
12h 39m
1 stop
Frontier Logo
8:22 pm - 10:27 am
STL
-
PHL
13h 05m
1 stop
$133Frontier
vie., feb. 27 - lun., mar. 2
Frontier Logo
4:14 pm - 10:27 pm
PHL
-
STL
7h 13m
1 stop
Frontier Logo
4:51 pm - 10:15 pm
STL
-
PHL
28h 24m
1 stop
$139Frontier
mar., mar. 3 - mar., mar. 10
Multiple Airlines Logo
4:44 pm - 11:33 pm
BWI
-
STL
7h 49m
1 stop
Multiple Airlines Logo
3:49 pm - 6:06 pm
STL
-
BWI
25h 17m
1 stop
$141Multiple Airlines
mié., feb. 4 - mar., feb. 10
Multiple Airlines Logo
4:44 pm - 11:33 pm
BWI
-
STL
7h 49m
1 stop
Multiple Airlines Logo
8:22 pm - 10:26 am
STL
-
BWI
13h 04m
1 stop
$154Multiple Airlines
mar., feb. 3 - mié., feb. 4
United Airlines Logo
6:45 pm - 8:23 pm
IAD
-
STL
2h 38mnonstop
United Airlines Logo
9:55 am - 4:05 pm
STL
-
IAD
5h 10m
1 stop
$245United Airlines
sáb., feb. 14 - mar., feb. 17
Southwest Logo
3:40 pm - 9:55 pm
DCA
-
STL
7h 15m
1 stop
Southwest Logo
8:20 am - 11:15 am
STL
-
DCA
1h 55mnonstop
$245Southwest
mar., feb. 3 - mié., feb. 4
Southwest Logo
3:25 pm - 5:00 pm
DCA
-
STL
2h 35mnonstop
Southwest Logo
7:50 am - 12:50 pm
STL
-
DCA
4h 00m
1 stop
$250Southwest
jue., feb. 19 - sáb., feb. 21
United Airlines Logo
6:45 pm - 8:23 pm
IAD
-
STL
2h 38mnonstop
United Airlines Logo
8:30 am - 11:40 am
STL
-
IAD
2h 10mnonstop
$254United Airlines
sáb., feb. 14 - mar., feb. 17
American Airlines Logo
7:51 pm - 9:37 pm
DCA
-
STL
2h 46mnonstop
American Airlines Logo
6:06 am - 9:12 am
STL
-
DCA
2h 06mnonstop
$264American Airlines
sáb., feb. 14 - lun., feb. 16

United Airlines flights from Maryland to St. Louis

Our best United Airlines deals on Maryland to St. Louis flight tickets
United Airlines
Feb 14
IAD6:45 pmWashington, D.C. Dulles Intl
2h 38m
STL8:23 pmLambert-St Louis
Feb 17
STL9:55 amLambert-St Louis
5h 10m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$245
United Airlines
Feb 14
IAD6:45 pmWashington, D.C. Dulles Intl
2h 38m
STL8:23 pmLambert-St Louis
Feb 17
STL8:30 amLambert-St Louis
2h 10m
IAD11:40 amWashington, D.C. Dulles Intl
$254
United Airlines
Feb 3
IAD5:17 pmWashington, D.C. Dulles Intl
6h 41m
1 stop
STL10:58 pmLambert-St Louis
Feb 4
STL10:10 amLambert-St Louis
4h 50m
1 stop
IAD4:00 pmWashington, D.C. Dulles Intl
$255

Frontier flights from Maryland to St. Louis

Our best Frontier deals on Maryland to St. Louis flight tickets
Frontier
Feb 3
PHL8:25 pmPhiladelphia
28h 08m
1 stop
STL11:33 pmLambert-St Louis
Feb 10
STL3:49 pmLambert-St Louis
19h 33m
1 stop
PHL12:22 pmPhiladelphia
$128
Frontier
Feb 27
PHL7:12 pmPhiladelphia
12h 39m
1 stop
STL6:51 amLambert-St Louis
Mar 2
STL8:22 pmLambert-St Louis
13h 05m
1 stop
PHL10:27 amPhiladelphia
$133
Frontier
Mar 3
PHL4:14 pmPhiladelphia
7h 13m
1 stop
STL10:27 pmLambert-St Louis
Mar 10
STL4:51 pmLambert-St Louis
28h 24m
1 stop
PHL10:15 pmPhiladelphia
$139

momondo Fare Finder

 
Customize your flight search to find flights from Maryland to St. Louis 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 enero 14, 2026.
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

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

mar. 2/3

8:25 pm-11:33 pm

1 stop28h 08m

Lambert-St Louis

mar. 2/10

3:49 pm-12:22 pm

1 stop19h 33m

$128

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

vie. 2/27

7:12 pm-6:51 am

1 stop12h 39m

Lambert-St Louis

lun. 3/2

8:22 pm-10:27 am

1 stop13h 05m

$133

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

mar. 3/3

4:14 pm-10:27 pm

1 stop7h 13m

Lambert-St Louis

mar. 3/10

4:51 pm-10:15 pm

1 stop28h 24m

$139

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

mié. 2/4

4:44 pm-11:33 pm

1 stop7h 49m

Lambert-St Louis

mar. 2/10

3:49 pm-6:06 pm

1 stop25h 17m

$141

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

mar. 2/3

4:44 pm-11:33 pm

1 stop7h 49m

Lambert-St Louis

mié. 2/4

8:22 pm-10:26 am

1 stop13h 04m

$154

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

sáb. 2/14

6:45 pm-8:23 pm

Nonstop2h 38m

Lambert-St Louis

mar. 2/17

9:55 am-4:05 pm

1 stop5h 10m

$245

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

mar. 2/3

3:40 pm-9:55 pm

1 stop7h 15m

Lambert-St Louis

mié. 2/4

8:20 am-11:15 am

Nonstop1h 55m

$245

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

jue. 2/19

3:25 pm-5:00 pm

Nonstop2h 35m

Lambert-St Louis

sáb. 2/21

7:50 am-12:50 pm

1 stop4h 00m

$250

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

sáb. 2/14

6:45 pm-8:23 pm

Nonstop2h 38m

Lambert-St Louis

mar. 2/17

8:30 am-11:40 am

Nonstop2h 10m

$254

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

sáb. 2/14

7:51 pm-9:37 pm

Nonstop2h 46m

Lambert-St Louis

lun. 2/16

6:06 am-9:12 am

Nonstop2h 06m

$264

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to St. Louis from

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

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 St. Louis?

In general, August is the cheapest month to fly from Maryland to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $273. The month of October is another great option to travel to St. Louis, with average flight prices from Maryland averaging around $293.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Saturday when prices can be found for as low as $333. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $408. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Maryland in the evening is the least expensive time of day to depart. momondo users have found prices as low as $308 when looking at flights departing in the evening. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $381 per ticket.

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

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

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

There is only 1 cabin class available to choose from on Maryland to Lambert-St Louis 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 Maryland to St. Louis flights?

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

Cheap Maryland to St. Louis flight deals and tips

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

Best Price Found

$259

Fastest flight time

2h 10m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Maryland in the past 72 hours is $259. The best round-trip flight deal from Maryland to St. Louis found on momondo in the last 72 hours is $385.
The fastest flight from Maryland to St. Louis takes 2h 10m
Direct flights go from Maryland to St. Louis every day.
There is 1 airport in St. Louis. From Maryland there are direct flights to Lambert-St Louis (STL).
Search flight deals

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Maryland to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Maryland to St. Louis

Compare and see reviews for airlines that fly from Maryland to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $117Free CancellationRating
5.7
3,056 reviews
Search Frontier flights
DeltaPriceFrom $130Free CancellationRating
7.9
8,042 reviews
Search Delta flights
American AirlinesPriceFrom $178Free CancellationRating
7.2
11,122 reviews
Search American Airlines flights
SouthwestPriceFrom $197Free CancellationRating
8.0
4,258 reviews
Search Southwest flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Fenton
Collinsville
St. Peters
Wentzville
Alton
Farmington
Clayton
Eureka
Edwardsville
Festus
Glencoe
Litchfield
Shrewsbury

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Maryland to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Maryland to St. Louis flights to just show those with flexible booking policies.

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

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 Maryland to St. Louis.

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

Of course. momondo tracks the price of Maryland to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your St. Louis 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
vie. 2/13
vie. 2/20
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States