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

Return flights

11 May - 27 May	Cathay Pacific
11 May - 25 May	Philippine Airlines
05 May - 13 May	China Airlines
05 May - 04 Jun	China Airlines
09 May - 23 May	China Airlines
09 May - 15 May	China Airlines
09 May - 21 May	China Airlines
14 May - 23 May	China Airlines
03 May - 11 May	China Airlines
31 May - 07 Jun	Air Canada
22 May - 29 May	Flair Airlines
22 May - 07 Jun	Flair Airlines
30 May - 24 Jun	Air Canada
27 May - 02 Jun	Cathay Pacific
23 May - 30 May	WestJet
23 May - 13 Jun	Air Canada
25 May - 20 Jun	Cathay Pacific
22 May - 07 Jun	Air Premia	direct
22 May - 13 Jun	Alaska Airlines
05 May - 04 Jun	Air Premia	direct

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

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 May from $836

Return flights