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Cheap flights from St. Louis to Baltimore from $54

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 Baltimore departing on 5/18. 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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Cheap St. Louis to Baltimore (STL to BWI) flight deals and tips

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

Best Price Found

$54

Fastest flight time

3h 55m

Direct flights

None

Airports in Baltimore

1 airport
The best one-way flight to Baltimore from St. Louis in the past 72 hours is $54. The best round-trip flight deal from St. Louis to Baltimore found on momondo in the last 72 hours is $98.
The fastest flight from St. Louis to Baltimore takes 3h 55m
There are no direct flights from St. Louis to Baltimore. Popular non-direct route for this connection is Lambert-St Louis Airport - Baltimore/Washington Airport.
There is 1 airport near Baltimore: Baltimore/Washington (BWI)

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

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 from St. Louis to Baltimore?

October. The cheapest time of year to fly to Baltimore from St. Louis is October. Most expensive is March

What is the cheapest day to depart St. Louis for Baltimore?

Tuesday. The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday

When is the cheapest time to fly from St. Louis to Baltimore?

In the evening. St. Louis to Baltimore flights are approximately 29% more expensive in the morning than in the evening

What is the cheapest airline that flies to Baltimore from St. Louis?

Frontier. American Airlines, Delta, and Frontier are the most popular carriers operating from St. Louis to Baltimore

What is the cheapest St. Louis to Baltimore flight route?

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

How far in advance should you book St. Louis to Baltimore flights?

26 days before. The cheapest time to buy a flight from St. Louis to Baltimore is approximately 26 days to departure

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

As of March 2024, there are 6 flights per week flying from St. Louis to Baltimore. The most common time of day flights depart is 5:00AM, with 33% of flights taking off in the evening.

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

44 flights are operational weekly from St. Louis to Baltimore as of March 2024. The most popular departure day for this route is Monday, with 16% of flights per week taking off on this day.

When you’re planning your trip from St. Louis to Baltimore, the most popular airport-to-airport route is Lambert-St Louis Airport to Baltimore/Washington Airport. When booking your trip to Baltimore, it is helpful to have an alternative airport to fly out of. The nearest airport to Lambert-St Louis Airport is Springfield Capital Airport which is located in Springfield. If you are looking for alternate airports to fly into when traveling from St. Louis, you can try Washington, D.C. Reagan-National Airport or Washington, D.C. Dulles Intl Airport which are located in Washington, D.C. and Washington, D.C. respectively. In March, $107 is typically the cheapest round trip price you’ll find from St. Louis to Baltimore which you can find when you fly STL — DCA.

Lambert-St Louis Airport (STL) to Washington, D.C. Reagan-National Airport (DCA)$107
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Lambert-St Louis Airport (STL) to Washington, D.C. Dulles Intl Airport (IAD)$176
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Lambert-St Louis Airport (STL) to Baltimore/Washington Airport (BWI)$129
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Springfield Capital Airport (SPI) to Washington, D.C. Dulles Intl Airport (IAD)$554
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Springfield Capital Airport (SPI) to Baltimore/Washington Airport (BWI)$216
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Springfield Capital Airport (SPI) to Washington, D.C. Reagan-National Airport (DCA)$208
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Easily compare round-trip flights from St. Louis to Baltimore

Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from St. Louis to Baltimore by changing tabs
Frontier
Apr 25
STL7:16 pmLambert-St Louis
11h 02m
1 stop
BWI7:18 amBaltimore/Washington
May 2
BWI9:17 pmBaltimore/Washington
10h 56m
1 stop
STL7:13 amLambert-St Louis
Multiple Airlines
Apr 16
STL2:35 pmLambert-St Louis
5h 50m
1 stop
BWI9:25 pmBaltimore/Washington
Apr 17
BWI12:29 pmBaltimore/Washington
22h 49m
1 stop
STL10:18 amLambert-St Louis
Spirit Airlines
May 16
STL6:19 pmLambert-St Louis
13h 23m
1 stop
BWI8:42 amBaltimore/Washington
May 20
BWI10:12 pmBaltimore/Washington
12h 27m
1 stop
STL9:39 amLambert-St Louis
Frontier
Apr 24
STL9:53 pmLambert-St Louis
21h 34m
1 stop
BWI8:27 pmBaltimore/Washington
May 1
BWI12:29 pmBaltimore/Washington
23h 09m
1 stop
STL10:38 amLambert-St Louis
Frontier
May 2
STL11:38 amLambert-St Louis
22h 51m
1 stop
BWI11:29 amBaltimore/Washington
May 8
BWI12:29 pmBaltimore/Washington
23h 09m
1 stop
STL10:38 amLambert-St Louis
Sun Country Air
Jun 7
STL6:10 pmLambert-St Louis
15h 21m
1 stop
BWI10:31 amBaltimore/Washington
Jun 9
BWI12:01 pmBaltimore/Washington
6h 10m
1 stop
STL5:11 pmLambert-St Louis

Find the cheapest one-way flights from St. Louis to Baltimore

If you're looking for one-way flights from St. Louis to Baltimore, view some of our deals below provided by Delta, Frontier and Spirit Airlines
Frontier
May 18
STL9:29 pmLambert-St Louis
8h 50m
1 stop
BWI7:19 amBaltimore/Washington
Multiple Airlines
Apr 9
STL2:25 pmLambert-St Louis
23h 31m
1 stop
BWI2:56 pmBaltimore/Washington
Spirit Airlines
May 4
STL6:24 pmLambert-St Louis
13h 14m
1 stop
BWI8:38 amBaltimore/Washington

Search last-minute flights to Baltimore from St. Louis

Find and compare round-trip flight prices for your last-minute flight from St. Louis to Baltimore
Frontier
Apr 12
STL7:16 pmLambert-St Louis
18h 40m
1 stop
BWI2:56 pmBaltimore/Washington
Apr 13
BWI9:00 pmBaltimore/Washington
11h 13m
1 stop
STL7:13 amLambert-St Louis
Spirit Airlines
Apr 3
STL9:08 pmLambert-St Louis
11h 13m
1 stop
BWI9:21 amBaltimore/Washington
Apr 8
BWI6:50 amBaltimore/Washington
10h 55m
1 stop
STL4:45 pmLambert-St Louis
Multiple Airlines
Apr 5
STL10:57 amLambert-St Louis
11h 53m
1 stop
BWI11:50 pmBaltimore/Washington
Apr 9
BWI9:49 pmBaltimore/Washington
24h 04m
1 stop
STL8:53 pmLambert-St Louis
Frontier
Apr 12
STL5:35 pmLambert-St Louis
17h 25m
1 stop
BWI12:00 pmBaltimore/Washington
Apr 16
BWI9:17 pmBaltimore/Washington
24h 36m
1 stop
STL8:53 pmLambert-St Louis
Frontier
Apr 12
STL7:16 pmLambert-St Louis
18h 40m
1 stop
BWI2:56 pmBaltimore/Washington
Apr 15
BWI1:00 pmBaltimore/Washington
27h 50m
1 stop
STL3:50 pmLambert-St Louis
Frontier
Apr 12
STL7:16 pmLambert-St Louis
18h 40m
1 stop
BWI2:56 pmBaltimore/Washington
Apr 14
BWI9:17 pmBaltimore/Washington
23h 54m
1 stop
STL8:11 pmLambert-St Louis

Best airlines flying from St. Louis to Baltimore

Compare and see reviews for airlines that fly from St. Louis to Baltimore with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $105Free CancellationRating
6.3
4,263 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $139Free CancellationRating
6.4
8,843 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $220Free CancellationRating
7.3
15,181 reviews
Search American Airlines flights
United AirlinesPriceFrom $249Free CancellationRating
7.4
11,470 reviews
Search United Airlines flights
DeltaPriceFrom $264Free CancellationRating
8.0
11,402 reviews
Search Delta flights

Spirit Airlines flights from St. Louis to Baltimore

Our best Spirit Airlines deals on St. Louis to Baltimore flight tickets
Spirit Airlines
May 16
STL6:19 pmLambert-St Louis
13h 23m
1 stop
BWI8:42 amBaltimore/Washington
May 20
BWI10:12 pmBaltimore/Washington
12h 27m
1 stop
STL9:39 amLambert-St Louis
Spirit Airlines
May 4
STL6:24 pmLambert-St Louis
13h 14m
1 stop
BWI8:38 amBaltimore/Washington
May 5
BWI11:47 amBaltimore/Washington
6h 47m
1 stop
STL5:34 pmLambert-St Louis
Spirit Airlines
Apr 20
STL11:39 amLambert-St Louis
5h 51m
1 stop
BWI6:30 pmBaltimore/Washington
Apr 22
BWI4:46 pmBaltimore/Washington
17h 58m
2 stops
STL9:44 amLambert-St Louis

Frontier flights from St. Louis to Baltimore

Our best Frontier deals on St. Louis to Baltimore flight tickets
Frontier
Apr 25
STL7:16 pmLambert-St Louis
11h 02m
1 stop
BWI7:18 amBaltimore/Washington
May 2
BWI9:17 pmBaltimore/Washington
10h 56m
1 stop
STL7:13 amLambert-St Louis
Frontier
Apr 24
STL9:53 pmLambert-St Louis
21h 34m
1 stop
BWI8:27 pmBaltimore/Washington
May 1
BWI12:29 pmBaltimore/Washington
23h 09m
1 stop
STL10:38 amLambert-St Louis
Frontier
May 2
STL11:38 amLambert-St Louis
22h 51m
1 stop
BWI11:29 amBaltimore/Washington
May 8
BWI12:29 pmBaltimore/Washington
23h 09m
1 stop
STL10:38 amLambert-St Louis

  • How far is Lambert-St Louis to Baltimore/Washington by plane?

    The straight-line distance from Lambert-St Louis to Baltimore/Washington is 730.2 mi. By plane, this route typically takes 3h 55m.

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

    Prices for flights from Lambert-St Louis Airport to Baltimore/Washington Airport are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Baltimore/Washington Airport.

  • What documentation or ID do you need to fly to Baltimore/Washington Airport?

    The travel and health documents required for your trip to Baltimore/Washington 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 Baltimore/Washington Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.


Alternative routes for St. Louis to Baltimore

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
St. Louis to Washington, D.C. Flights
Fastest flight time1h 56m
Cheapest price$107
Kansas City to Washington, D.C. Flights
Fastest flight time5h 21m
Cheapest price$165
Springfield to Washington, D.C. Flights
Fastest flight time4h 24m
Cheapest price$228
St. Louis to Salisbury, Maryland Flights
Fastest flight time4h 59m
Cheapest price$557
Joplin to Washington, D.C. Flights
Fastest flight time5h 46m
Cheapest price$333
Columbia, Missouri to Washington, D.C. Flights
Fastest flight time3h 49m
Cheapest price$560
Kansas City to Salisbury, Maryland Flights
Fastest flight time4h 38m
Cheapest price$527
Fort Leonard Wood to Washington, D.C. Flights
Fastest flight time17h 29m
Cheapest price$535
Kirksville to Washington, D.C. Flights
Fastest flight time22h 39m
Cheapest price$429

Similar St. Louis to Baltimore flights

Flexible with your destination? Broaden your search and find flights similar to your St. Louis to Baltimore route

Why use momondo?

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

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

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

All flight searches from St. Louis to Baltimore on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Baltimore from St. Louis.

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

If you are not ready to book a flight from St. Louis to Baltimore now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Baltimore and let you know when they change.


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