Cheap Flights from Baltimore (BWI) to St. Louis (STL) from AU$239

Featured airlines

    Plan, book, fly with confidence
    trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
    bex rewards loyalty icon
    Book smarter
    Save up to 35% on select hotels after you book a flight*
    payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at AU$239 for one-way flights and AU$519 for round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu., 20 Jun. - Sun., 7 Jul.
BWI
Baltimore
STL
St. Louis
AU$519 Return, found 5 days ago
AU$519
Return
found 5 days ago
Select Delta flight, departing Thu., 20 Jun. from Baltimore to St. Louis, returning Sun., 7 Jul., priced at AU$519 found 5 days ago
Delta
Mon., 24 Jun. - Sun., 7 Jul.
BWI
Baltimore
STL
St. Louis
AU$596 Return, found 5 days ago
AU$596
Return
found 5 days ago
Select Delta flight, departing Mon., 24 Jun. from Baltimore to St. Louis, returning Sun., 7 Jul., priced at AU$596 found 5 days ago
Delta
Fri., 21 Jun. - Sun., 7 Jul.
BWI
Baltimore
STL
St. Louis
AU$697 Return, found 5 days ago
AU$697
Return
found 5 days ago
Select Delta flight, departing Fri., 21 Jun. from Baltimore to St. Louis, returning Sun., 7 Jul., priced at AU$697 found 5 days ago
Delta
Mon., 20 May - Sun., 2 Jun.
BWI
Baltimore
STL
St. Louis
AU$724 Return, found 5 days ago
AU$724
Return
found 5 days ago
Select Delta flight, departing Mon., 20 May from Baltimore to St. Louis, returning Sun., 2 Jun., priced at AU$724 found 5 days ago
Delta
Fri., 17 May - Sun., 2 Jun.
BWI
Baltimore
STL
St. Louis
AU$746 Return, found 5 days ago
AU$746
Return
found 5 days ago
Select Delta flight, departing Fri., 17 May from Baltimore to St. Louis, returning Sun., 2 Jun., priced at AU$746 found 5 days ago
Flight from Baltimore to St. Louis route information
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Lambert-St. Louis Intl.
Return price
AU$518
Distance
1177 km
Average flight time
1 hour 36 mins

Your quick guide to flights from Baltimore to St. Louis

Pick up great flights from Baltimore to St. Louis

With Expedia, you have your pick of 5 flights a day with 20 airlines covering flights from Baltimore to St. Louis. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Baltimore to St. Louis that take around 2 hours.

Find cheap flights from Baltimore to St. Louis

From the great flight deals with prices currently ranging from AU$519 to AU$746, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Baltimore to St. Louis around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to St. Louis is normally in June.

Reasons to book your flight from Baltimore to St. Louis with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Baltimore to St. Louis across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to St. Louis right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from BWI Marshall to Lambert Field?
Round-trip tickets from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Lambert-St. Louis Intl. Airport (STL) start from AU$519. This price is based on fares advertised within the last 7 days on Expedia for flights departing within the next year — book ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from BWI to St. Louis Lambert International Airport?
Most flights can be cancelled online, but whether you are charged a fee varies between airlines. If you do need to cancel your escape, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from BWI to Lambert Field 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 BWI Airport to Lambert Field flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to STL?
With a flight distance of 1 200 kilometres, it’s only a short hop from BWI Marshall to St. Louis Lambert International Airport. It might be a quick journey, but it’s still worth bringing along something to keep you busy on board.
Which airlines fly direct from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to STL?
Southwest Airlines (WN) will get you from BWI Marshall to STL comfortably and reliably. Choose from 95 direct flights every month on this route.
Are BWI Marshall to STL flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from BWI Marshall to Lambert-St. Louis Intl. Airport (STL) can be hit-or-miss. You may be able to score a great bargain, but then again, you could miss out altogether! If you’d prefer to play it safe and start your travel planning early, Expedia compares flight deals up to a year in advance. Just bear in mind that not all airlines list their prices that far in advance. Our suggestion? Check back often as prices are updated regularly.
Baltimore Airports

Washington

Washington Dulles Intl. to St. Louis
AU$315.30
*Available to Expedia members.