AirHint found the following cheapest return flights from Portland (PDX) to Tokyo (NRT) in March 2026 (see full year).

Return flights

03 Mar - 10 Mar	Air Canada
10 Mar - 17 Mar	United
01 Mar - 18 Mar	United
08 Mar - 20 Mar	Korean Air
18 Mar - 02 Apr	Korean Air
18 Mar - 08 Apr	Korean Air
07 Mar - 23 Mar	Alaska Airlines
31 Mar - 06 Apr	Korean Air
07 Mar - 18 Mar	Air Canada
10 Mar - 16 Mar	Japan Airlines
07 Mar - 17 Mar	Alaska Airlines
06 Mar - 13 Mar	Alaska Airlines
08 Mar - 22 Mar	Air Canada
30 Mar - 07 Apr	Air Canada
30 Mar - 06 Apr	Air Canada
18 Mar - 01 Apr	American Airlines
29 Mar - 06 Apr	Air Canada
26 Mar - 05 Apr	STARLUX Airlines
25 Mar - 04 Apr	Alaska Airlines
29 Mar - 11 Apr	Air Canada

Also check the deals for one-way flights from Portland to Tokyo in March.

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 March from $675

Return flights