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

Return flights

15 Jan - 30 Jan	Asiana Airlines
14 Jan - 21 Jan	Asiana Airlines
27 Jan - 03 Feb	Asiana Airlines
20 Jan - 28 Jan	Asiana Airlines
07 Jan - 22 Jan	Air Canada
16 Jan - 25 Jan	Asiana Airlines
07 Jan - 15 Jan	United
07 Jan - 14 Jan	United
15 Jan - 30 Jan	Japan Airlines	direct
01 Jan - 20 Jan	Korean Air
07 Jan - 15 Jan	Japan Airlines	direct
27 Jan - 03 Feb	Japan Airlines	direct

Also check the deals for one-way flights from Seattle to Tokyo in January.

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 January from 613€

Return flights