CA $120 Cheap American Airlines fights from St. Louis (STL) to Washington (WAS)

View CA $120 flight on Wed, Sep. 17, 2025Opens in a new window

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American Airlines flights from St. Louis to Washington (STL→WAS)

Prices were available within the past 7 days and start at CA $120 for one-way flights and CA $258 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Oct. 8 - Sat, Oct. 11
STL
St. Louis
BWI
Baltimore
CA $258 Roundtrip, found 3 days ago
CA $258
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Oct. 8 from St. Louis to Baltimore, returning Sat, Oct. 11, priced at CA $258 found 3 days ago
American Airlines
Wed, Oct. 8 - Sat, Oct. 11
STL
St. Louis
BWI
Baltimore
CA $287 Roundtrip, found 3 days ago
CA $287
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Oct. 8 from St. Louis to Baltimore, returning Sat, Oct. 11, priced at CA $287 found 3 days ago
American Airlines
Wed, Jul. 30 - Tue, Aug. 5
STL
St. Louis
DCA
Washington
CA $291 Roundtrip, found 2 days ago
CA $291
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Jul. 30 from St. Louis to Washington, returning Tue, Aug. 5, priced at CA $291 found 2 days ago
American Airlines
Wed, Oct. 8 - Sat, Oct. 11
STL
St. Louis
BWI
Baltimore
CA $299 Roundtrip, found 3 days ago
CA $299
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Oct. 8 from St. Louis to Baltimore, returning Sat, Oct. 11, priced at CA $299 found 3 days ago
American Airlines
Sun, Sep. 7 - Wed, Sep. 10
STL
St. Louis
DCA
Washington
CA $328 Roundtrip, found 2 days ago
CA $328
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, Sep. 7 from St. Louis to Washington, returning Wed, Sep. 10, priced at CA $328 found 2 days ago
American Airlines
Wed, Oct. 8 - Sat, Oct. 11
STL
St. Louis
BWI
Baltimore
CA $330 Roundtrip, found 3 days ago
CA $330
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Oct. 8 from St. Louis to Baltimore, returning Sat, Oct. 11, priced at CA $330 found 3 days ago
Flight from St. Louis to Baltimore (STL - BWI) route information
Origin airport
Lambert-St. Louis Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Distance
1177 km
*Available to Expedia members.