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

Return flights

24 Dec - 27 Dec	Alaska Airlines
30 Dec - 13 Jan	Air Canada
12 Dec - 23 Dec	ANA
13 Dec - 20 Dec	United
13 Dec - 16 Dec	United
30 Dec - 08 Jan	Alaska Airlines
28 Dec - 08 Jan	Alaska Airlines
16 Dec - 23 Dec	ANA
13 Dec - 14 Dec	United
23 Dec - 28 Dec	Alaska Airlines
25 Dec - 01 Jan	Alaska Airlines
24 Dec - 01 Jan	Air Canada
12 Dec - 30 Dec	ANA
12 Dec - 31 Dec	ANA
16 Dec - 30 Dec	United
30 Dec - 06 Jan	Air Canada
24 Dec - 03 Jan	Alaska Airlines
21 Dec - 04 Jan	Alaska Airlines
20 Dec - 04 Jan	Hawaiian Airlines
24 Dec - 02 Jan	ANA

Also check the deals for one-way flights from Portland 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 Portland to Tokyo in December from $740

Return flights