AirHint found the following cheapest return flights from Denver (DEN) to Tokyo (NRT) in December 2025 (see full year).

Return flights

02 Dec - 17 Dec	Frontier Airlines
05 Dec - 14 Dec	Frontier Airlines
29 Dec - 15 Jan	Air Canada
11 Dec - 25 Dec	Air Canada
26 Dec - 17 Jan	Air Canada
09 Dec - 27 Jan	Air Canada
29 Dec - 13 Jan	Air Canada
09 Dec - 07 Jan	Frontier Airlines
09 Dec - 27 Jan	United	direct
25 Dec - 06 Jan	Alaska Airlines
11 Dec - 25 Dec	United	direct
26 Dec - 11 Jan	Alaska Airlines
27 Dec - 11 Jan	United
05 Dec - 14 Dec	United	direct
09 Dec - 07 Jan	United	direct
18 Dec - 25 Dec	Frontier Airlines
18 Dec - 25 Dec	ANA	direct

Also check the deals for one-way flights from Denver to Tokyo in December.

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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Cheapest return flights from Denver to Tokyo in December from 742€

Return flights