$309 Cheap United flights St. Louis (STL) to Washington (IAD)

$309 Cheap United flights St. Louis (STL) to Washington (IAD)

Prices were available within the past 7 days and start at $309 for one-way flights and $617 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
United
United
United
United
United

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Washington Dulles Intl.
Distance
1111 km
Average flight time
3 hours 10 mins

Explore a world of travel with Expedia

Explore a world of travel with Expedia