Cheapest one-way flights from Washington to Denver in January from $37

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

One-Way flights

06 Jan Frontier Airlines direct
07 Jan Frontier Airlines direct
10 Jan Frontier Airlines direct
31 Jan Frontier Airlines direct
16 Jan Frontier Airlines direct
08 Jan Frontier Airlines direct
09 Jan Frontier Airlines direct
26 Jan Frontier Airlines direct
22 Jan Frontier Airlines direct
03 Jan Frontier Airlines direct

Also check the deals for return 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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