Cheapest return flights from Washington to Denver in January from $78

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

Return flights

06 Jan - 13 Jan Frontier Airlines direct
31 Jan - 03 Feb Frontier Airlines direct
31 Jan - 02 Feb Frontier Airlines direct
23 Jan - 27 Jan Frontier Airlines direct
28 Jan - 01 Feb Frontier Airlines direct
07 Jan - 23 Jan Frontier Airlines direct
06 Jan - 23 Jan Frontier Airlines direct
03 Jan - 10 Jan Frontier Airlines direct
01 Jan - 06 Jan Frontier Airlines direct
08 Jan - 11 Jan Frontier Airlines direct
09 Jan - 12 Jan Frontier Airlines direct
29 Jan - 02 Feb Frontier Airlines direct
19 Jan - 26 Jan Frontier Airlines direct
08 Jan - 12 Jan Frontier Airlines direct

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

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