AirHint found the following cheapest return flights from Las Vegas (LAS) to Seoul (ICN) in October 2025 (see full year).

Return flights

20 Oct - 26 Oct	Hawaiian Airlines
02 Oct - 14 Oct	WestJet
31 Oct - 03 Nov	Flair Airlines
06 Oct - 17 Nov	Frontier Airlines
06 Oct - 16 Oct	Frontier Airlines
06 Oct - 18 Oct	Frontier Airlines
15 Oct - 19 Oct	WestJet
09 Oct - 08 Nov	Hawaiian Airlines
06 Oct - 17 Nov	Korean Air	direct
06 Oct - 18 Oct	Korean Air	direct
20 Oct - 26 Oct	Korean Air	direct
02 Oct - 14 Oct	Delta	direct
06 Oct - 16 Oct	Delta	direct
15 Oct - 19 Oct	Korean Air	direct

Also check the deals for one-way flights from Las Vegas to Seoul in October.

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 Las Vegas to Seoul in October from 665€

Return flights