$35 Cheap flights from Lambert-St. Louis Intl. to Baltimore Washington Intl. Thurgood Marshall (STL to BWI)

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

Amazing STL to BWI Flight Deals

The cheapest flights to Baltimore Washington Intl. Thurgood Marshall found within the past 7 days were $95 round trip and $35 one way. Prices and availability subject to change. Additional terms may apply.

Sat, May 11 - Wed, May 15
STL
St. Louis
BWI
Baltimore
$95 Roundtrip, found 6 days ago
$95
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Sat, May 11 from St. Louis to Baltimore, returning Wed, May 15, priced at $95 found 6 days ago
Tue, May 7 - Mon, May 13
STL
St. Louis
BWI
Baltimore
$119 Roundtrip, found 4 days ago
$119
Roundtrip
found 4 days ago
Select Spirit Airlines flight, departing Tue, May 7 from St. Louis to Baltimore, returning Mon, May 13, priced at $119 found 4 days ago
Tue, May 14 - Mon, May 20
STL
St. Louis
BWI
Baltimore
$125 Roundtrip, found 6 days ago
$125
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Tue, May 14 from St. Louis to Baltimore, returning Mon, May 20, priced at $125 found 6 days ago
Sat, May 11 - Tue, May 14
STL
St. Louis
BWI
Baltimore
$125 Roundtrip, found 2 days ago
$125
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Sat, May 11 from St. Louis to Baltimore, returning Tue, May 14, priced at $125 found 2 days ago
Sat, May 11 - Wed, May 15
STL
St. Louis
BWI
Baltimore
$131 Roundtrip, found 6 days ago
$131
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Sat, May 11 from St. Louis to Baltimore, returning Wed, May 15, priced at $131 found 6 days ago
Tue, May 14 - Wed, May 15
STL
St. Louis
BWI
Baltimore
$133 Roundtrip, found 6 days ago
$133
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Tue, May 14 from St. Louis to Baltimore, returning Wed, May 15, priced at $133 found 6 days ago
Tue, May 14 - Fri, May 17
STL
St. Louis
BWI
Baltimore
$134 Roundtrip, found 6 days ago
$134
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Tue, May 14 from St. Louis to Baltimore, returning Fri, May 17, priced at $134 found 6 days ago
Tue, May 7 - Wed, May 15
STL
St. Louis
BWI
Baltimore
$137 Roundtrip, found 4 days ago
$137
Roundtrip
found 4 days ago
Select Spirit Airlines flight, departing Tue, May 7 from St. Louis to Baltimore, returning Wed, May 15, priced at $137 found 4 days ago
Tue, May 7 - Fri, May 17
STL
St. Louis
BWI
Baltimore
$138 Roundtrip, found 4 days ago
$138
Roundtrip
found 4 days ago
Select Spirit Airlines flight, departing Tue, May 7 from St. Louis to Baltimore, returning Fri, May 17, priced at $138 found 4 days ago
Tue, Jun 4 - Wed, Jun 5
STL
St. Louis
BWI
Baltimore
$140 Roundtrip, found 1 day ago
$140
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Tue, Jun 4 from St. Louis to Baltimore, returning Wed, Jun 5, priced at $140 found 1 day ago

Frequently asked questions

Can I catch a flight from St. Louis Lambert International Airport to BWI right now?
For info on any current BWI travel advice and quarantine requirements, go to the Covid-19 Travel Advisor. Check before you arrange your flight, so you don’t get caught out.
Are there direct flights from STL to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Be a wise wanderer and score a direct flight from Lambert Field to BWI Airport with Southwest Airlines. This air carrier is the ideal choice if you want to reach Baltimore as speedily as possible.
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 BWI Airport, please visit our Customer Service Portal.
How long is the flight from St. Louis Lambert International Airport to BWI?
With the flight from STL to BWI Marshall taking around 4 hours and 51 minutes, you will have time to get a lot of things done in the air. Make the most of your journey by bringing that book you never have time to read, checking out what’s on the in-flight entertainment or catching up on some sleep. You’ll probably even be able to squeeze in all three before landing.
What is the flight distance from St. Louis Lambert International Airport to BWI?
From St. Louis Lambert International Airport, you’ll cover 740 mi before landing at Baltimore Washington Intl. Thurgood Marshall Airport (BWI). That should be enough time to read several chapters of your novel and maybe even manage a quick snooze.
What airlines fly from STL to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Know the dates for your trip? Eager to fly nonstop from St. Louis to Baltimore? With Southwest Airlines offering as many as 86 flights each month, you’ll be taking off in no time.
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, Spirit 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
Lambert-St. Louis Intl.
Traveling To
Baltimore Washington Intl. Thurgood Marshall
Shortest Flight Time
4 hours 0 mins
Earliest Departure Time
6:00AM EDT
Latest Departure Time
7:45PM EDT
Lowest Flight Price
$95

Route Info

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


Origin:
STL - Lambert-St. Louis International Airport
Destination:
BWI - Baltimore/Wash International Thurgood Marshall Airport
Distance:
739.00 miles


Airlines & Aircraft Used on STL to BWI Flight Routes


Airline Carrier
Aircraft
American Airlines
Aerospatiale/Alenia ATR 72

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

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 St. Louis STL to Baltimore BWI at the right price  

Airfares to Baltimore BWI from St. Louis STL currently cost between $95 and $140. 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 St. Louis STL to Baltimore BWI 

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 St. Louis STL to Baltimore BWI on Travelocity starting at $35. Prices and availability subject to change. Additional terms may apply. 

 

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

Get to Baltimore faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to BWI from STL to take around 4 hour(s) 0 min(s).  

 

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

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to BWI from STL. 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 St. Louis STL to Baltimore BWI today 

If you’re flexible about when you travel, May is usually the cheapest month to fly from St. Louis STL to Baltimore BWI. 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 Baltimore BWI from St. Louis STL 

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

 

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