Cheapest one-way flights from Seattle to Tokyo in December from $446

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

10 Dec WestJet
29 Dec Japan Airlines direct
14 Dec Air Canada
11 Dec Air Canada
12 Dec WestJet
25 Dec Air Canada
10 Dec Alaska Airlines direct
12 Dec Japan Airlines direct
14 Dec Alaska Airlines direct

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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