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

Return flights

12 Apr - 28 Apr	Xiamen Airlines
23 Apr - 29 Apr	WestJet
12 Apr - 26 Apr	Xiamen Airlines
07 Apr - 22 Apr	Cathay Pacific
21 Apr - 26 Apr	Hawaiian Airlines
09 Apr - 23 Apr	WestJet
08 Apr - 29 Apr	WestJet
10 Apr - 26 Apr	WestJet
21 Apr - 29 Apr	Cathay Pacific
22 Apr - 29 Apr	Cathay Pacific
29 Apr - 18 May	Cathay Pacific
25 Apr - 09 May	China Airlines
14 Apr - 28 May	Cathay Pacific
20 Apr - 05 May	Cathay Pacific
23 Apr - 23 May	WestJet
23 Apr - 10 May	WestJet
27 Apr - 09 May	WestJet
19 Apr - 15 May	China Southern
14 Apr - 12 May	China Eastern
16 Apr - 30 May	WestJet

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

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 April from 663€

Return flights