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

Return flights

16 Sep - 28 Sep	ANA
29 Sep - 07 Oct	ANA
09 Sep - 23 Sep	ANA
01 Sep - 11 Sep	ANA
16 Sep - 16 Oct	ANA
23 Sep - 28 Sep	ANA
04 Sep - 11 Sep	ANA
02 Sep - 10 Sep	ANA
13 Sep - 06 Oct	ANA
17 Sep - 27 Sep	ANA
05 Sep - 05 Oct	ANA
12 Sep - 13 Oct	ANA
18 Sep - 27 Sep	ANA
09 Sep - 17 Sep	ANA
10 Sep - 19 Sep	ANA
23 Sep - 04 Oct	ANA
18 Sep - 04 Oct	ANA
20 Sep - 04 Oct	ANA

Also check the deals for one-way flights from Seoul to Los Angeles in September.

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 Seoul to Los Angeles in September from 766€

Return flights