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Uncover the best deals on St Louis to Baltimore flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest STL - BWI Flights
Useful information for finding best airline tickets from Lambert St Louis International to Baltimore/Washington International Thurgood Marsha on your next trip.
Cheapest Round Trip Flight
$183
Frontier Airlines
• 1 stop
• 23h 32m
Sep 17 – Sep 21
The cheapest round trip flight from St Louis to Baltimore (STL-BWI-STL) is currently $183
Cheapest Direct Flight
$225
Southwest Airlines
• nonstop
• 3h 25m
Sep 17
The cheapest nonstop flight from St Louis to Baltimore (STL-BWI) is currently $225
Fastest Flight
3h 20m
The fastest nonstop flight from St Louis to Baltimore (STL-BWI) takes 3h 20m
Top Airlines Flying from St Louis to Baltimore
Latest Flight Deals from St Louis (STL) to Baltimore (BWI)
Compare and book low fare round-trip air tickets from St Louis to Baltimore. Ideal for travelers with confirmed return itineraries.
Sep 17 - Sep 21, Economy
St Louis → Baltimore
23h 32m
5:19 PM - 8:31 AM • 1 stop
St Louis → Baltimore
13h 30m
6:00 AM - 1:10 PM • 1 stop
Frontier Airlines
Sep 17 - Sep 21, Economy
St Louis → Baltimore
6h 42m
5:59 PM - 11:01 PM • 1 stop
St Louis → Baltimore
7h 1m
9:45 AM - 1:06 PM • 1 stop
Delta Airlines
Sep 17 - Sep 21, Economy
St Louis → Baltimore
8h 46m
10:29 AM - 4:55 PM • 1 stop
St Louis → Baltimore
7h 1m
9:45 AM - 1:06 PM • 1 stop
Delta Airlines
Sep 17 - Sep 21, Economy
St Louis → Baltimore
5h 45m
11:05 AM - 3:50 PM • 1 stop
St Louis → Baltimore
3h 30m
5:15 PM - 6:25 PM • nonstop
Southwest Airlines
Sep 17 - Sep 21, Economy
St Louis → Baltimore
3h 25m
6:05 AM - 9:10 AM • nonstop
St Louis → Baltimore
5h 35m
12:35 PM - 3:10 PM • 1 stop
Southwest Airlines
Looking for the fastest way to Baltimore? These direct flight options from STL to BWI offer both convenience and value—no layovers, just straight to your destination.
Sep 17 - Sep 21, Economy
St Louis → Baltimore
3h 25m
6:50 PM - 9:55 PM • nonstop
St Louis → Baltimore
3h 30m
5:15 PM - 6:25 PM • nonstop
Southwest Airlines
Sep 17 - Sep 21, Economy
St Louis → Baltimore
3h 25m
6:05 AM - 9:10 AM • nonstop
St Louis → Baltimore
3h 30m
5:15 PM - 6:25 PM • nonstop
Southwest Airlines
Sep 17 - Sep 21, Economy
St Louis → Baltimore
3h 20m
11:40 AM - 2:40 PM • nonstop
St Louis → Baltimore
3h 30m
6:35 AM - 7:45 AM • nonstop
Southwest Airlines
FAQs on St Louis to Baltimore Flights
What are the airports in St Louis?
STL
What’s the most popular airline flying from STL to BWI?
The most popular airline flying from St Louis to Baltimore are
Can I fly from STL to BWI non-stop?
Yes, you can fly STL to BWI non-stop on
Which airlines fly nonstop between St Louis and Baltimore?
The non-stop flights between St Louis and Baltimore are .
What’s the earliest departure time from STL to BWI Airport?
The earliest flight leaves STL at 6:05 am and lands in BWI - Baltimore/Washington International Thurgood Marsha
What are the airports in Baltimore?
IAD,BWI,DCA
Can I make changes to my St Louis to Baltimore 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 STL to BWI?
Read the fare rules of the St Louis to Baltimore 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 St Louis and Baltimore?
operate flights between St Louis and Baltimore
How long does a flight from St Louis to Baltimore take?
It takes approximately 2 hour to fly non-stop from STL to BWI, which is 737.8 miles by air.
Which airlines provide the cheapest flights from St Louis (STL) to Baltimore (BWI) ?
In the past couple of days, the cheapest tickets to BWI from STL were found on WN : USD 225
Do I need a passport to fly between STL and BWI?
No
What’s the latest departure time from STL to BWI ?
The last flight leaves STL at 6:50 pm
St Louis (STL) to Baltimore (BWI): Airport Information
| Origin Airport | Lambert St Louis International , St Louis, US |
| Destination Airport | Baltimore/Washington International Thurgood Marsha, Baltimore, US |
| Distance | 738 miles |
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