￥12,750 Cheap Flights from St. Louis (STL) to Baltimore (BWI)

View ￥12,750 flight on Tue, Aug 12, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Baltimore Washington Intl. Airport (BWI)

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Cheap Flights from St. Louis to Baltimore (STL-BWI)

Prices were available within the past 7 days and start at ￥12,750 for one-way flights and ￥47,210 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, Jul 26 - Thu, Jul 31
STL
St. Louis
BWI
Baltimore
￥47,210 Roundtrip, found 6 days ago
￥47,210
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Jul 26 from St. Louis to Baltimore, returning Thu, Jul 31, priced at ￥47,210 found 6 days ago
Delta
Sat, Jul 26 - Thu, Jul 31
STL
St. Louis
BWI
Baltimore
￥47,210 Roundtrip, found 6 days ago
￥47,210
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Jul 26 from St. Louis to Baltimore, returning Thu, Jul 31, priced at ￥47,210 found 6 days ago
American Airlines
Sat, Jul 26 - Thu, Jul 31
STL
St. Louis
BWI
Baltimore
￥53,660 Roundtrip, found 6 days ago
￥53,660
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Jul 26 from St. Louis to Baltimore, returning Thu, Jul 31, priced at ￥53,660 found 6 days ago
Delta
Sat, Jul 26 - Thu, Jul 31
STL
St. Louis
BWI
Baltimore
￥54,190 Roundtrip, found 6 days ago
￥54,190
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Jul 26 from St. Louis to Baltimore, returning Thu, Jul 31, priced at ￥54,190 found 6 days ago
American Airlines
Sat, Jul 26 - Thu, Jul 31
STL
St. Louis
BWI
Baltimore
￥59,250 Roundtrip, found 6 days ago
￥59,250
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Jul 26 from St. Louis to Baltimore, returning Thu, Jul 31, priced at ￥59,250 found 6 days ago
United
Sat, Jul 26 - Thu, Jul 31
STL
St. Louis
BWI
Baltimore
￥65,800 Roundtrip, found 6 days ago
￥65,800
Roundtrip
found 6 days ago
Select United flight, departing Sat, Jul 26 from St. Louis to Baltimore, returning Thu, Jul 31, priced at ￥65,800 found 6 days ago
Delta
Sat, Jul 26 - Thu, Jul 31
STL
St. Louis
BWI
Baltimore
￥67,950 Roundtrip, found 6 days ago
￥67,950
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Jul 26 from St. Louis to Baltimore, returning Thu, Jul 31, priced at ￥67,950 found 6 days ago
Delta
Sat, Jul 26 - Thu, Jul 31
STL
St. Louis
BWI
Baltimore
￥68,060 Roundtrip, found 6 days ago
￥68,060
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Jul 26 from St. Louis to Baltimore, returning Thu, Jul 31, priced at ￥68,060 found 6 days ago
American Airlines
Sat, Jul 26 - Thu, Jul 31
STL
St. Louis
BWI
Baltimore
￥68,490 Roundtrip, found 6 days ago
￥68,490
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Jul 26 from St. Louis to Baltimore, returning Thu, Jul 31, priced at ￥68,490 found 6 days ago
United
Sat, Jul 26 - Thu, Jul 31
STL
St. Louis
BWI
Baltimore
￥69,350 Roundtrip, found 6 days ago
￥69,350
Roundtrip
found 6 days ago
Select United flight, departing Sat, Jul 26 from St. Louis to Baltimore, returning Thu, Jul 31, priced at ￥69,350 found 6 days ago

Find the cheapest month to fly from St. Louis (STL) to Baltimore (BWI)

September is typically the cheapest month to fly

From ￥16,704 - ￥77,626 per traveler.

Graph displaying average flight prices per month

Flights from St. Louis (STL) to Baltimore (BWI)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Roundtrip price
￥47,210
Distance
1177 km
Average flight time
3 hours 33 mins

St. Louis to Baltimore Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from St. Louis to will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Baltimore.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with STL to BWI flights that won’t make your bank account wince. Ready to temporarily leave behind St. Louis for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to BWI with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Frequently asked questions

How much is a flight from Lambert Field to BWI Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price quoted for a round-trip journey from Lambert-St. Louis Intl. Airport (STL) to BWI Airport was ￥47,210. Cheap fares don't hang around, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Lambert Field to BWI?
This can differ between airlines, as each has its own set of terms and conditions. Head to the Customer Service Portal, where there are easy-to-follow instructions on how to cancel your flight online.
How do I find cheap flights from Lambert Field to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Lambert Field to BWI flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from St. Louis Lambert International Airport to BWI?
Recline your seat, choose an in-flight TV show and 1 hour and 59 minutes will whiz by before you know it. That's how long it takes to get to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) from St. Louis Lambert International Airport.
How far is the flight from Lambert Field to BWI Airport?
You can forget about a movie marathon on this flight --- it's only 1,200 kilometers from St. Louis to Baltimore. Find your way to your seat, order some food and you'll be touching down in no time.
Which airlines fly direct from STL to BWI Airport?
Unfortunately, there aren't any airlines that fly directly between St. Louis Lambert International Airport and BWI Airport. You'll have to book a flight with one or more stops.
Are St. Louis Lambert International Airport to BWI Marshall flight tickets cheaper when they're purchased at the last minute?
Late planners can sometimes score a bargain, with some of the cheapest fares from STL to BWI popping up a few weeks prior to the departure date. If you'd rather book ahead of time, Expedia compares and updates the best flight deals continuously --- as early as 12 months in advance in some cases. It depends on the carrier though, as not every airline advertises prices that far in advance.

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