Cheapest return flights from Washington to Denver in January from $58

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

Return flights

17 Jan - 24 Jan Frontier Airlines direct
12 Jan - 14 Jan Frontier Airlines direct
24 Jan - 24 Jan Frontier Airlines direct
26 Jan - 29 Jan Frontier Airlines direct
24 Jan - 26 Jan Frontier Airlines direct
25 Jan - 27 Jan Frontier Airlines direct
31 Jan - 01 Feb Frontier Airlines direct
28 Jan - 01 Feb Frontier Airlines direct
20 Jan - 24 Jan Frontier Airlines direct
29 Jan - 01 Feb Frontier Airlines direct
20 Jan - 23 Jan Frontier Airlines direct
14 Jan - 17 Jan Frontier Airlines direct
23 Jan - 25 Jan Frontier Airlines direct
29 Jan - 02 Feb Frontier Airlines direct
06 Jan - 06 Feb Frontier Airlines direct
01 Jan - 02 Feb Frontier Airlines direct
02 Jan - 02 Feb Frontier Airlines direct

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

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