Cheapest one-way SEA–NRT flights, December

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

One-Way flights

28 Dec United
28 Dec Japan Airlines direct
11 Dec Alaska Airlines
13 Dec WestJet
10 Dec United
12 Dec Alaska Airlines
22 Dec Alaska Airlines
19 Dec Alaska Airlines
20 Dec Alaska Airlines
18 Dec Alaska Airlines

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

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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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