AirHint found the following cheapest return flights from San Jose (SJC) to Beijing (PEK) in December 2025 (see full year).

Return flights

14 Dec - 27 Dec	Frontier Airlines
05 Dec - 13 Dec	Japan Airlines
11 Dec - 17 Dec	Korean Air
30 Dec - 12 Jan	Asiana Airlines
05 Dec - 12 Jan	Korean Air
16 Dec - 30 Dec	Hawaiian Airlines
13 Dec - 13 Jan	Japan Airlines
06 Dec - 12 Jan	Asiana Airlines
29 Dec - 16 Jan	Korean Air
25 Dec - 18 Jan	Korean Air
10 Dec - 16 Dec	Asiana Airlines
09 Dec - 05 Jan	Korean Air
26 Dec - 12 Jan	Korean Air
08 Dec - 10 Jan	Korean Air
30 Dec - 13 Jan	Korean Air
12 Dec - 14 Dec	Korean Air
09 Dec - 16 Dec	Korean Air
17 Dec - 30 Dec	Japan Airlines
23 Dec - 30 Dec	Japan Airlines
06 Dec - 20 Dec	Japan Airlines

Also check the deals for one-way flights from San Jose to Beijing in December.

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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Cheapest return flights from San Jose to Beijing in December from $1344

Return flights