Cheap US Airways flights St. Louis (STL) to Washington (IAD)

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Flights from St. Louis (STL) to Washington (IAD)
Origin airport	Lambert-St. Louis Intl.
Destination airport	Washington Dulles Intl.
Airlines serving	American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Popular airline	Delta
Distance	694 mi
Average flight time	3 hours 10 mins

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