Denver (DEN) to Washington (IAD) flight deal from $89 USD in economy class – flightdeals.net

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United Airlines

UAUnited Airlines

One Way•Economy

Denver International Airport

Denver, United States

Washington Dulles International Airport

Washington, United States

$175 USD

-49%$89 USD

Verified Nov 28, 2025 at 10:49 PM

December 2025

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1$340 2$340 3$340 4$262 5$204 6$184 7$204 8$204 9$184 10$184 11$204 12$167 13$149 14$167 15$167 16$149 17$149 18$177 19$257 20$257 21$187 22$205 23$215 24$187 25$160 26$223 27$257 28$234 29$180 30$180 31$180 1$180 2$190 3$339 4$234

Limited Availability

10% of dates checked are available within 10% of the lowest price

Sunday, December 28th, 2025

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