- Cheap flights from Decatur (DEC) to Washington (WAS) (2026) | Expedia

Cherry blossoms along a river with the Washington Monument in the background.

Popular airlines from Decatur, IL (DEC) to Washington

United

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Travel information

Origin airport	Decatur, IL
Destination airport	Washington Dulles Intl. Airport
Distance	986 km away
Airlines serving	United
Popular airline	United

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