AirHint found the following cheapest return flights from Los Angeles (LAX) to Seoul (ICN) in December 2026 (see full year).

Return flights

09 Dec - 19 Dec	Cathay Pacific
06 Dec - 10 Jan	Cathay Pacific
28 Dec - 22 Jan	WestJet
07 Dec - 31 Dec	China Airlines
11 Dec - 26 Dec	Air Canada
24 Dec - 02 Jan	WestJet
12 Dec - 18 Dec	Cathay Pacific
17 Dec - 14 Jan	EVA Air
09 Dec - 19 Dec	Asiana Airlines	direct
21 Dec - 13 Jan	EVA Air
13 Dec - 28 Dec	EVA Air
07 Dec - 31 Dec	Asiana Airlines	direct
17 Dec - 05 Jan	Lufthansa
28 Dec - 22 Jan	Korean Air	direct
17 Dec - 31 Dec	China Airlines
17 Dec - 02 Jan	Finnair
18 Dec - 02 Jan	WestJet
06 Dec - 10 Jan	Korean Air	direct
12 Dec - 18 Dec	Asiana Airlines	direct
13 Dec - 28 Dec	Asiana Airlines	direct

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 $1044

Return flights