S$257 Cheap Flights from St. Louis to Baltimore

View S$257 flight on Sun, 3 Aug,2025Opens in a new window

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

Prices were available within the past 7 days and start at S$257 for one-way flights and S$263 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 29 Apr - Tue, 20 May
STL
St. Louis
BWI
Baltimore
S$263 Return, found 4 days ago
S$263
Return
found 4 days ago
Select Delta flight, departing Tue, 29 Apr from St. Louis to Baltimore, returning Tue, 20 May, priced at S$263 found 4 days ago
Delta
Tue, 6 May - Sun, 25 May
STL
St. Louis
BWI
Baltimore
S$276 Return, found 4 days ago
S$276
Return
found 4 days ago
Select Delta flight, departing Tue, 6 May from St. Louis to Baltimore, returning Sun, 25 May, priced at S$276 found 4 days ago
Delta
Tue, 29 Apr - Thu, 22 May
STL
St. Louis
BWI
Baltimore
S$290 Return, found 4 days ago
S$290
Return
found 4 days ago
Select Delta flight, departing Tue, 29 Apr from St. Louis to Baltimore, returning Thu, 22 May, priced at S$290 found 4 days ago
Delta
Fri, 9 May - Sun, 25 May
STL
St. Louis
BWI
Baltimore
S$303 Return, found 4 days ago
S$303
Return
found 4 days ago
Select Delta flight, departing Fri, 9 May from St. Louis to Baltimore, returning Sun, 25 May, priced at S$303 found 4 days ago
Delta
Fri, 2 May - Thu, 22 May
STL
St. Louis
BWI
Baltimore
S$317 Return, found 4 days ago
S$317
Return
found 4 days ago
Select Delta flight, departing Fri, 2 May from St. Louis to Baltimore, returning Thu, 22 May, priced at S$317 found 4 days ago
Delta
Thu, 1 May - Tue, 20 May
STL
St. Louis
BWI
Baltimore
S$331 Return, found 4 days ago
S$331
Return
found 4 days ago
Select Delta flight, departing Thu, 1 May from St. Louis to Baltimore, returning Tue, 20 May, priced at S$331 found 4 days ago
Delta
Thu, 8 May - Sun, 25 May
STL
St. Louis
BWI
Baltimore
S$345 Return, found 4 days ago
S$345
Return
found 4 days ago
Select Delta flight, departing Thu, 8 May from St. Louis to Baltimore, returning Sun, 25 May, priced at S$345 found 4 days ago
American Airlines
Tue, 6 May - Tue, 27 May
STL
St. Louis
BWI
Baltimore
S$357 Return, found 4 days ago
S$357
Return
found 4 days ago
Select American Airlines flight, departing Tue, 6 May from St. Louis to Baltimore, returning Tue, 27 May, priced at S$357 found 4 days ago
Delta
Thu, 1 May - Thu, 22 May
STL
St. Louis
BWI
Baltimore
S$358 Return, found 4 days ago
S$358
Return
found 4 days ago
Select Delta flight, departing Thu, 1 May from St. Louis to Baltimore, returning Thu, 22 May, priced at S$358 found 4 days ago
United
Fri, 9 May - Tue, 27 May
STL
St. Louis
BWI
Baltimore
S$384 Return, found 4 days ago
S$384
Return
found 4 days ago
Select United flight, departing Fri, 9 May from St. Louis to Baltimore, returning Tue, 27 May, priced at S$384 found 4 days ago
St. Louis to Baltimore route information
Origin airport
Lambert-St. Louis Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Return price
S$263
Distance
1177 km

Perfect flights from St. Louis to Baltimore

Your Journey from St. Louis to Baltimore

Start your unforgettable journey with Expedia. Our broad selection of flights from St. Louis to Baltimore caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Delta, American Airlines, United. Our selection of flights from Lambert-St. Louis Intl. to Baltimore Washington Intl. Thurgood Marshall caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with St. Louis to Baltimore Flights

Experience the joy of finding cheap flights from Lambert-St. Louis Intl. to Baltimore Washington Intl. Thurgood Marshall that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$257 and roundtrip prices from S$263*.
 

Pre-Flight Essentials

Ensure a smooth journey from St. Louis to Baltimore with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Baltimore

Picture yourself stepping off the plane in Baltimore and immersing yourself in the unique atmosphere of Baltimore. From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your St. Louis to Baltimore Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from St. Louis to Baltimore.
 

Beyond the Flight – Exploring Baltimore

With Expedia, your adventure extends beyond the flight. Explore Baltimore at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from St. Louis to Baltimore with Confidence

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*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from Lambert-St. Louis Intl. Airport (STL) to BWI Marshall?
Pack your bags, because round-trip journeys between Lambert-St. Louis Intl. Airport (STL) and BWI start from S$263. That’s based on fares advertised within the last 7 days on Expedia for flights departing within the next year. Prices can change quickly, so book today to score the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from STL to BWI?
Most flights can be conveniently cancelled online, but whether or not you are charged a fee varies between airlines. If you do have to cancel your getaway, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from Lambert Field to BWI Marshall 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-St. Louis Intl. Airport (STL) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from STL to BWI Airport?
A flight distance of just 1,200 kilometres separates St. Louis and Baltimore. Once you’re up in the air, you won’t get a chance to do much more than flip through the pages of the in-flight magazine.
Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to BWI Marshall?
If you want to fly straight from STL to BWI, Southwest Airlines (WN) is a popular choice. It operates 95 flights each month between St. Louis and Baltimore.
Are STL to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) flight tickets cheaper when they're purchased at the last minute?
It is possible to pick up an amazing last-minute deal from St. Louis Lambert International Airport to BWI, but there’s no guarantee. As many airlines release prices up to a year in advance, it’s worthwhile keeping an eye on fares early and being ready to book when you spot a bargain. Expedia compares air carrier prices and updates flight deals all the time, so you can rest assured you’re always getting the latest offers.

Explore a world of travel with Expedia

*Available to Expedia members.