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

Return flights

02 Dec - 09 Dec	Xiamen Airlines
07 Dec - 21 Dec	Xiamen Airlines
01 Dec - 10 Dec	Zipair
01 Dec - 22 Dec	Air China
08 Dec - 16 Dec	Zipair
08 Dec - 20 Dec	Zipair
01 Dec - 17 Dec	Zipair
08 Dec - 17 Dec	Zipair
01 Dec - 05 Dec	Zipair
04 Dec - 09 Dec	Zipair
30 Dec - 15 Jan	Zipair
30 Dec - 18 Jan	Zipair
05 Dec - 25 Jan	WestJet
10 Dec - 13 Jan	WestJet
11 Dec - 14 Jan	Zipair
09 Dec - 14 Jan	Hawaiian Airlines
11 Dec - 15 Jan	Zipair
10 Dec - 19 Jan	WestJet
31 Dec - 14 Jan	Hawaiian Airlines
08 Dec - 11 Jan	Zipair

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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from Los Angeles to Seoul in December from 529€

Return flights