Cheapest one-way flights from Seattle to Beijing in December from $403

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

One-Way flights

30 Dec Asiana Airlines
28 Dec Korean Air
27 Dec Hawaiian Airlines
30 Dec Hainan Airlines direct
13 Dec Alaska Airlines
12 Dec Hawaiian Airlines
27 Dec Hainan Airlines direct
21 Dec Alaska Airlines
13 Dec Hainan Airlines direct

Also check the deals for return flights from Seattle to Beijing 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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