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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
$306
Southwest Airlines
• nonstop
• 3h 30m
Sep 04 – Sep 07
The cheapest round trip flight from Baltimore to St Louis (BWI-STL-BWI) is currently $306
Cheapest Direct Flight
$119
Southwest Airlines
• nonstop
• 1h 55m
Aug 05
The cheapest nonstop flight from Baltimore to St Louis (BWI-STL) is currently $119
Fastest Flight
1h 55m
The fastest nonstop flight from Baltimore to St Louis (BWI-STL) takes 1h 55m
Top Airlines Flying from Baltimore to St Louis
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.
Sep 04 - Sep 07, Economy
Baltimore → St Louis
3h 30m
6:35 AM - 7:45 AM • nonstop
Baltimore → St Louis
3h 20m
7:55 PM - 10:55 PM • nonstop
Southwest Airlines
Sep 04 - Sep 07, Economy
Baltimore → St Louis
3h 30m
10:25 AM - 11:35 AM • nonstop
Baltimore → St Louis
3h 20m
1:10 PM - 4:10 PM • nonstop
Southwest Airlines
Sep 04 - Sep 07, Economy
Baltimore → St Louis
3h 30m
5:15 PM - 6:25 PM • nonstop
Baltimore → St Louis
3h 20m
3:55 PM - 6:55 PM • nonstop
Southwest Airlines
Sep 04 - Sep 07, Economy
Baltimore → St Louis
18h 57m
6:45 AM - 5:22 PM • 1 stop
Baltimore → St Louis
10h 36m
4:23 PM - 11:59 PM • 1 stop
Frontier Airlines
Sep 04 - Sep 07, Economy
Baltimore → St Louis
15h 37m
8:45 AM - 5:22 PM • 1 stop
Baltimore → St Louis
10h 36m
4:23 PM - 11:59 PM • 1 stop
Frontier Airlines
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.
Aug 05 - Aug 12, Economy
Baltimore → St Louis
1h 55m
7:55 PM - 9:10 PM • nonstop
Baltimore → St Louis
5h 5m
5:55 AM - 9:00 AM • nonstop
Southwest Airlines
Aug 05 - Aug 12, Economy
Baltimore → St Louis
13h 40m
10:35 AM - 5:55 PM • 1 stop
Baltimore → St Louis
14h 10m
7:15 AM - 5:05 PM • 1 stop
Southwest Airlines
Aug 05 - Aug 12, Economy
Baltimore → St Louis
33h 49m
7:27 PM - 2:56 PM • 2 stops
Baltimore → St Louis
56h 58m
8:08 PM - 7:26 AM • 2 stops
Frontier Airlines
Aug 05 - Aug 12, Economy
Baltimore → St Louis
35h 5m
9:32 PM - 5:37 PM • 1 stop
Baltimore → St Louis
25h 45m
4:09 PM - 8:54 AM • 1 stop
Frontier Airlines
Aug 05 - Aug 12, Economy
Baltimore → St Louis
6h 55m
9:59 AM - 1:14 PM • 1 stop
Baltimore → St Louis
6h 52m
6:30 AM - 11:42 AM • 1 stop
Delta 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.
Aug 05 - Aug 12, Economy
Baltimore → St Louis
1h 55m
7:55 PM - 9:10 PM • nonstop
Baltimore → St Louis
5h 5m
5:55 AM - 9:00 AM • nonstop
Southwest Airlines
Sep 04 - Sep 07, Economy
Baltimore → St Louis
3h 30m
6:35 AM - 7:45 AM • nonstop
Baltimore → St Louis
3h 20m
7:55 PM - 10:55 PM • nonstop
Southwest Airlines
Sep 04 - Sep 07, Economy
Baltimore → St Louis
3h 30m
10:25 AM - 11:35 AM • nonstop
Baltimore → St Louis
3h 20m
1:10 PM - 4:10 PM • nonstop
Southwest Airlines
Sep 04 - Sep 07, Economy
Baltimore → St Louis
3h 30m
5:15 PM - 6:25 PM • nonstop
Baltimore → St Louis
3h 20m
3:55 PM - 6:55 PM • nonstop
Southwest Airlines
Aug 05 - Aug 12, Economy
Baltimore → St Louis
- • nonstop
Baltimore → St Louis
- • nonstop
American 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 6:24 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 306
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 5:5500 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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