AirHint found the following cheapest return flights from Los Angeles (LAX) to Seoul (GMP) in December 2025 (see full year).

Return flights

01 Dec - 27 Dec	EVA Air
10 Dec - 12 Jan	ANA
05 Dec - 23 Dec	ANA
25 Dec - 13 Jan	EVA Air
24 Dec - 13 Jan	EVA Air
24 Dec - 16 Jan	EVA Air
28 Dec - 07 Jan	EVA Air
15 Dec - 22 Dec	Japan Airlines
15 Dec - 08 Jan	Japan Airlines
22 Dec - 20 Jan	EVA Air
22 Dec - 15 Jan	Japan Airlines
22 Dec - 13 Jan	EVA Air
15 Dec - 12 Jan	ANA
13 Dec - 31 Dec	ANA
14 Dec - 28 Dec	ANA
27 Dec - 30 Dec	ANA

Also check the deals for one-way flights from Los Angeles to Seoul 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 Los Angeles to Seoul in December from 1180€

Return flights