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

Return flights

02 Mar - 16 Mar	Air Canada
26 Mar - 02 Apr	Air Canada
22 Mar - 31 Mar	Korean Air
21 Mar - 31 Mar	Korean Air
20 Mar - 28 Mar	Asiana Airlines
21 Mar - 28 Mar	Korean Air
02 Mar - 16 Mar	Japan Airlines	direct
22 Mar - 31 Mar	Japan Airlines	direct
21 Mar - 31 Mar	Japan Airlines	direct
21 Mar - 28 Mar	Japan Airlines	direct
20 Mar - 28 Mar	Japan Airlines	direct
26 Mar - 02 Apr	Japan Airlines	direct

Also check the deals for one-way flights from Seattle 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 Seattle to Tokyo in March from 645€

Return flights