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Uncover the best deals on Baltimore to St Louis flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest BWI - STL Flights
Useful information for finding best airline tickets from Baltimore/Washington International Thurgood Marsha to Lambert St Louis International on your next trip.
Cheapest Round Trip Flight
$212
Delta Airlines
• 1 stop
• 10h 32m
Jun 24 – Jul 01
The cheapest round trip flight from Baltimore to St Louis (BWI-STL-BWI) is currently $212
Cheapest One way Flight
$223
Southwest Airlines
• 1 stop
• 10h
Jun 21
The cheapest one way flight from Baltimore to St Louis (BWI-STL) is currently $223
Cheapest Direct Flight
$186
Southwest Airlines
• nonstop
• 3h 40m
Jun 24
The cheapest nonstop flight from Baltimore to St Louis (BWI-STL) is currently $186
Fastest Flight
3h 35m
The fastest nonstop flight from Baltimore to St Louis (BWI-STL) takes 3h 35m
Latest Flight Deals from Baltimore (BWI) to St Louis (STL)
Compare and book low fare round-trip air tickets from Baltimore to St Louis. Ideal for travelers with confirmed return itineraries.
Jun 24 - Jul 01, Economy
Baltimore → St Louis
10h 32m
6:24 PM - 11:56 PM • 1 stop
Baltimore → St Louis
10h 3m
6:00 AM - 1:03 PM • 1 stop
Delta Airlines
Jun 24 - Jul 01, Economy
Baltimore → St Louis
45h 19m
9:30 PM - 11:49 PM • 1 stop
Baltimore → St Louis
25h 44m
4:17 PM - 9:01 AM • 1 stop
Frontier Airlines
Jun 24 - Jul 01, Economy
Baltimore → St Louis
14h 5m
8:20 AM - 4:05 PM • 1 stop
Baltimore → St Louis
3h 20m
7:40 PM - 10:40 PM • nonstop
Southwest Airlines
Jun 24 - Jul 01, Economy
Baltimore → St Louis
15h 35m
11:50 AM - 8:25 PM • 1 stop
Baltimore → St Louis
3h 25m
6:20 PM - 9:25 PM • nonstop
Southwest Airlines
Jun 24 - Jul 01, Economy
Baltimore → St Louis
11h 45m
2:25 PM - 8:30 PM • 1 stop
Baltimore → St Louis
3h 20m
7:40 PM - 10:40 PM • nonstop
Southwest Airlines
Explore competitive one-way airfare options for BWI - STL flights. Best suited for flexible or open-ended travel plans.
Flying to St Louis soon? We've surfaced some of the most affordable last-minute flights from Baltimore to St Louis, ideal for urgent plans or spontaneous trips.
Jun 24 - Jul 01, Economy
Baltimore → St Louis
10h 32m
6:24 PM - 11:56 PM • 1 stop
Baltimore → St Louis
10h 3m
6:00 AM - 1:03 PM • 1 stop
Delta Airlines
Jun 24 - Jul 01, Economy
Baltimore → St Louis
45h 19m
9:30 PM - 11:49 PM • 1 stop
Baltimore → St Louis
25h 44m
4:17 PM - 9:01 AM • 1 stop
Frontier Airlines
Jun 24 - Jul 01, Economy
Baltimore → St Louis
14h 5m
8:20 AM - 4:05 PM • 1 stop
Baltimore → St Louis
3h 20m
7:40 PM - 10:40 PM • nonstop
Southwest Airlines
Jun 24 - Jul 01, Economy
Baltimore → St Louis
15h 35m
11:50 AM - 8:25 PM • 1 stop
Baltimore → St Louis
3h 25m
6:20 PM - 9:25 PM • nonstop
Southwest Airlines
Jun 24 - Jul 01, Economy
Baltimore → St Louis
11h 45m
2:25 PM - 8:30 PM • 1 stop
Baltimore → St Louis
3h 20m
7:40 PM - 10:40 PM • nonstop
Southwest Airlines
Looking for the fastest way to St Louis? These direct flight options from BWI to STL offer both convenience and value—no layovers, just straight to your destination.
Jun 24 - Jul 01, Economy
Baltimore → St Louis
3h 40m
5:55 PM - 7:15 PM • nonstop
Baltimore → St Louis
3h 20m
1:20 PM - 4:20 PM • nonstop
Southwest Airlines
Jun 24 - Jul 01, Economy
Baltimore → St Louis
3h 35m
10:15 AM - 11:30 AM • nonstop
Baltimore → St Louis
3h 20m
1:20 PM - 4:20 PM • nonstop
Southwest Airlines
Jun 24 - Jul 01, Economy
Baltimore → St Louis
3h 40m
6:25 AM - 7:45 AM • nonstop
Baltimore → St Louis
3h 20m
7:40 PM - 10:40 PM • nonstop
Southwest Airlines
FAQs on Baltimore to St Louis Flights
What are the airports in Baltimore?
IAD,BWI,DCA
What’s the most popular airline flying from BWI to STL?
The most popular airline flying from Baltimore to St Louis are
Can I fly from BWI to STL non-stop?
Yes, you can fly BWI to STL non-stop on
Which airlines fly nonstop between Baltimore and St Louis?
The non-stop flights between Baltimore and St Louis are .
What’s the earliest departure time from BWI to STL Airport?
The earliest flight leaves BWI at 6:25 am and lands in STL - Lambert St Louis International
What are the airports in St Louis?
STL
Can I make changes to my Baltimore to St Louis flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from BWI to STL?
Read the fare rules of the Baltimore to St Louis air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Baltimore and St Louis?
operate flights between Baltimore and St Louis
How long does a flight from Baltimore to St Louis take?
It takes approximately 2 hour to fly non-stop from BWI to STL, which is 737.8 miles by air.
Which airlines provide the cheapest flights from Baltimore (BWI) to St Louis (STL) ?
In the past couple of days, the cheapest tickets to STL from BWI were found on WN : USD 223
Do I need a passport to fly between BWI and STL?
No
What’s the latest departure time from BWI to STL ?
The last flight leaves BWI at 9:30 pm
Baltimore (BWI) to St Louis (STL): Airport Information
| Origin Airport | Baltimore/Washington International Thurgood Marsha, Baltimore, US |
| Destination Airport | Lambert St Louis International , St Louis, US |
| Distance | 738 miles |
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