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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
$434
Frontier Airlines
• 1 stop
• 45h 21m
Jul 25 – Aug 03
The cheapest round trip flight from Baltimore to St Louis (BWI-STL-BWI) is currently $434
Cheapest Direct Flight
$642
Southwest Airlines
• nonstop
• 3h 40m
Jul 25
The cheapest nonstop flight from Baltimore to St Louis (BWI-STL) is currently $642
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.
Jul 25 - Aug 03, Economy
Baltimore → St Louis
45h 21m
9:38 PM - 11:59 PM • 1 stop
Baltimore → St Louis
8h 40m
4:57 PM - 11:17 PM • 1 stop
Frontier Airlines
Jul 25 - Aug 03, Economy
Baltimore → St Louis
7h 13m
5:01 AM - 8:34 AM • 1 stop
Baltimore → St Louis
6h 51m
2:31 PM - 7:42 PM • 1 stop
American Airlines
Jul 25 - Aug 03, Economy
Baltimore → St Louis
9h
6:10 AM - 10:50 AM • 1 stop
Baltimore → St Louis
5h 40m
9:55 AM - 2:35 PM • 1 stop
Southwest Airlines
Jul 25 - Aug 03, Economy
Baltimore → St Louis
6h 40m
3:00 PM - 6:00 PM • 1 stop
Baltimore → St Louis
6h 45m
4:35 PM - 9:40 PM • 1 stop
Southwest Airlines
Jul 25 - Aug 03, Economy
Baltimore → St Louis
3h 40m
6:50 AM - 8:10 AM • nonstop
Baltimore → St Louis
5h 40m
9:55 AM - 2:35 PM • 1 stop
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.
Jul 25 - Aug 03, Economy
Baltimore → St Louis
3h 40m
8:45 PM - 10:05 PM • nonstop
Baltimore → St Louis
3h 25m
11:00 AM - 2:05 PM • nonstop
Southwest Airlines
Jul 25 - Aug 03, Economy
Baltimore → St Louis
3h 40m
6:50 AM - 8:10 AM • nonstop
Baltimore → St Louis
3h 25m
5:50 AM - 8:55 AM • nonstop
Southwest Airlines
Jul 25 - Aug 03, Economy
Baltimore → St Louis
3h 35m
3:50 PM - 5:05 PM • nonstop
Baltimore → St Louis
3h 25m
5:50 AM - 8:55 AM • 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 5:01 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 642
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 9:38 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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