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

Return flights

01 Dec - 16 Dec	Hawaiian Airlines
07 Dec - 14 Dec	Hawaiian Airlines
29 Dec - 14 Jan	Korean Air
08 Dec - 22 Dec	Korean Air
10 Dec - 23 Dec	Air Canada
27 Dec - 14 Jan	Alaska Airlines
11 Dec - 22 Dec	Alaska Airlines
15 Dec - 22 Dec	Alaska Airlines
25 Dec - 09 Jan	Air Canada
13 Dec - 20 Dec	Frontier Airlines
30 Dec - 06 Jan	Alaska Airlines
11 Dec - 30 Dec	Alaska Airlines
12 Dec - 27 Dec	Hawaiian Airlines
29 Dec - 05 Jan	Hawaiian Airlines
21 Dec - 24 Jan	Hawaiian Airlines
25 Dec - 02 Jan	Air Canada
18 Dec - 25 Dec	Air Canada
24 Dec - 06 Jan	Air Canada
25 Dec - 03 Jan	Air Canada
17 Dec - 06 Jan	Hawaiian Airlines

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 $651

Return flights