$168 Cheap American Airlines flights Washington (IAD) to St. Louis (STL)

View $168 flight on Thu, Sep 10, 2026Opens in a new window

$168 Cheap American Airlines flights Washington (IAD) to St. Louis (STL)

Prices were available within the past 7 days and start at $168 for one-way flights and $404 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Jul 24 - Tue, Jul 28
IAD
Washington
STL
St. Louis
$404 Roundtrip, found 1 day ago
$404
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Jul 24 from Washington to St. Louis, returning Tue, Jul 28, priced at $404 found 1 day ago

Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $170
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $170

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Popular airline
Delta
Distance
1111 km
Average flight time
1 hour 32 mins

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