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

One-Way flights

11 Mar	Asiana Airlines
03 Mar	Air Canada
21 Mar	Air Canada
15 Mar	Asiana Airlines
20 Mar	Asiana Airlines
15 Mar	Japan Airlines	direct
11 Mar	Japan Airlines	direct
20 Mar	Japan Airlines	direct
04 Mar	Emirates
01 Mar	Emirates

Also check the deals for return 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 one-way flights from Seattle to Tokyo in March from 278€

One-Way flights