Cheapest one-way flights from Seattle to Tokyo in January from $324

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

One-Way flights

13 Jan Alaska Airlines
11 Jan Alaska Airlines
18 Jan Alaska Airlines
23 Jan Alaska Airlines
22 Jan Japan Airlines
19 Jan Korean Air
08 Jan Japan Airlines
14 Jan Korean Air
15 Jan Japan Airlines
16 Jan Korean Air

Also check the deals for return flights from Seattle to Tokyo in January.

Powered by

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.

Book a cheap hotel in Tokyo

Cheap car rent in Tokyo

Feel free to contact us with any feedback or request another flight research.