Cheapest return flights from Washington to Denver in January from 70€

AirHint found the following cheapest return flights from Washington (DCA) to Denver (DEN) in January 2026 (see full year).

Return flights

23 Jan - 27 Jan Frontier Airlines direct
06 Jan - 10 Jan Frontier Airlines direct
28 Jan - 01 Feb Frontier Airlines direct
15 Jan - 18 Jan Frontier Airlines direct
17 Jan - 20 Jan Frontier Airlines direct
22 Jan - 25 Jan Frontier Airlines direct
29 Jan - 01 Feb Frontier Airlines direct

Also check the deals for one-way flights from Washington to Denver in January.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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