AirHint found the following cheapest return flights from Las Vegas (LAS) to Seoul (ICN) in March 2026 (see full year).

Return flights

16 Mar - 23 Mar	WestJet
13 Mar - 20 Mar	Spirit Airlines
11 Mar - 17 Mar	Alaska Airlines
31 Mar - 03 Apr	Hawaiian Airlines
02 Mar - 09 Mar	Alaska Airlines
28 Mar - 04 Apr	Asiana Airlines
02 Mar - 09 Mar	Delta	direct
16 Mar - 23 Mar	Delta	direct
11 Mar - 17 Mar	Delta	direct
31 Mar - 03 Apr	Delta	direct
28 Mar - 04 Apr	Delta	direct

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

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 March from 703€

Return flights