$126 Cheap Flights from Baltimore to St. Louis

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Find The Best Dates To Fly from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl.

Amazing BWI to STL Flight Deals

The cheapest flights to Lambert-St. Louis Intl. found within the past 7 days were $166 round trip and $126 one way. Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

Can I catch a flight from BWI Airport to Lambert-St. Louis Intl. Airport (STL) right now?
Make sure you check out the Covid-19 Travel Advisor to find out if there are any current quarantine requirements or travel advice reports in place in St. Louis Lambert International Airport when flying in from Baltimore Washington Intl. Thurgood Marshall Airport (BWI).
Are there direct flights from BWI Airport to Lambert Field?
The only thing separating you and your next extraordinary adventure is a single flight. Southwest Airlines is the only carrier that offers nonstop services between BWI and Lambert-St. Louis Intl. Airport (STL), so it’s smart to book well in advance of your departure date.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Lambert Field, please visit our Customer Service Portal.
How long is the flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Lambert-St. Louis Intl. Airport (STL)?
The travel time between Baltimore Washington Intl. Thurgood Marshall Airport (BWI) and Lambert-St. Louis Intl. Airport (STL) is usually about 5 hours and 7 minutes. Make your trip comfortable by downloading a few podcasts on your phone or laptop and enjoying them with your seat reclined.
What is the flight distance from BWI to Lambert-St. Louis Intl. Airport (STL)?
There’s a flight distance of 740 mi between BWI and St. Louis Lambert International Airport. Take advantage of the short trip to pen down all the popular places you plan to visit and how you’re going to get there. A comprehensive itinerary is key to having a worry-free vacation.
What airlines fly from BWI to Lambert-St. Louis Intl. Airport (STL)?
Ready to book the airfare for your next incredible adventure? Want to travel from Baltimore to St. Louis as fast as possible? Take one of the 86 direct flights offered by Southwest Airlines each month, and you’ll be hitting the tarmac before you can ask ‘Are we there yet?’
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with Southwest Airlines, American Airlines or Delta you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

 

Traveling From Baltimore Washington Intl. Thurgood Marshall
Traveling To Lambert-St. Louis Intl.
Shortest Flight Time hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price $166

Route Info

Flight path for flights from Baltimore/Wash International Thurgood Marshall Airport to Lambert-St. Louis International Airport

Distance:
739.00 miles

Airlines & Aircraft Used on BWI to STL Flight Routes

Airline Carrier
Aircraft
American Airlines
Aerospatiale/Alenia ATR 72
American Airlines
Boeing 737-700 pax
American Airlines
Boeing 737-800 pax

Discover our best flights from Baltimore BWI to St. Louis STL. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from Baltimore BWI to St. Louis STL at the right price  

Airfares to St. Louis STL from Baltimore BWI currently cost between $166 and $251. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from Baltimore BWI to St. Louis STL 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Baltimore BWI to St. Louis STL on Travelocity starting at $126. Prices and availability subject to change. Additional terms may apply. 

 

Get to St. Louis STL from Baltimore BWI quicker with direct flights. 

Get to St. Louis faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to STL from BWI to take around hour(s) min(s).  

 

Find our cheapest airfares for flights from Baltimore BWI to St. Louis STL

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to STL from BWI. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from Baltimore BWI to St. Louis STL today 

If you’re flexible about when you travel, January is usually the cheapest month to fly from Baltimore BWI to St. Louis STL. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to St. Louis STL from Baltimore BWI 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to STL from BWI have this option.  

 

Travel with confidence when you book flights to St. Louis STL from Baltimore BWI with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.