Cheapest one-way flights from Seattle to Tokyo in December from $408

Best time to book flights for Seattle (SEA) to Tokyo (NRT) flights at AirHint

AirHint found the following cheapest one-way flights from Seattle (SEA) to Tokyo (NRT) in December 2025 (see full year).

One-Way flights

01 Dec Korean Air
01 Dec Japan Airlines direct
08 Dec Korean Air
31 Dec Japan Airlines
08 Dec Alaska Airlines direct
31 Dec Japan Airlines direct
10 Dec Alaska Airlines
10 Dec Alaska Airlines direct
24 Dec Air Canada
19 Dec Korean Air

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

Skyscanner

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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