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

Return flights

29 Mar - 13 Apr	Air Canada
09 Mar - 16 Mar	Air Canada
08 Mar - 20 Mar	Korean Air
31 Mar - 14 Apr	Air Canada
24 Mar - 01 Apr	Air Canada
25 Mar - 08 Apr	Air Canada
25 Mar - 02 Apr	Air Canada
22 Mar - 31 Mar	Air Canada
21 Mar - 31 Mar	Air Canada
29 Mar - 20 Apr	Air Canada
27 Mar - 11 Apr	Air Canada
21 Mar - 06 Apr	Korean Air
21 Mar - 29 Mar	Korean Air
24 Mar - 06 Apr	Hawaiian Airlines
22 Mar - 30 Mar	Hawaiian Airlines
18 Mar - 01 Apr	Korean Air
19 Mar - 30 Mar	Frontier Airlines
19 Mar - 26 Mar	Frontier Airlines
20 Mar - 27 Mar	Alaska Airlines
21 Mar - 30 Mar	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 597€

Return flights