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

Return flights

15 Jul - 28 Jul	Frontier Airlines
15 Jul - 25 Jul	Frontier Airlines
14 Jul - 20 Jul	Frontier Airlines
10 Jul - 17 Jul	Spirit Airlines
26 Jul - 14 Aug	WestJet
07 Jul - 06 Aug	Air Canada
09 Jul - 06 Aug	Air Canada
18 Jul - 26 Jul	Frontier Airlines
15 Jul - 28 Jul	Delta	direct
10 Jul - 17 Jul	Korean Air	direct
26 Jul - 14 Aug	Delta	direct
14 Jul - 20 Jul	Korean Air	direct
07 Jul - 13 Aug	Delta	direct
09 Jul - 06 Aug	Korean Air	direct
07 Jul - 06 Aug	Korean Air	direct

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

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 July from $797

Return flights