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

Return flights

21 Mar - 30 Mar	Frontier Airlines
07 Mar - 15 Mar	Frontier Airlines
24 Mar - 31 Mar	Air Canada
13 Mar - 20 Mar	Spirit Airlines
04 Mar - 17 Mar	Alaska Airlines
12 Mar - 22 Mar	Frontier Airlines
31 Mar - 03 Apr	Spirit Airlines
03 Mar - 17 Mar	Alaska Airlines
07 Mar - 10 Mar	Southwest Airlines
26 Mar - 02 Apr	Air Canada
04 Mar - 16 Mar	Alaska Airlines
10 Mar - 31 Mar	Asiana Airlines
11 Mar - 08 Apr	Alaska Airlines
16 Mar - 13 Apr	Air Canada
11 Mar - 08 Apr	Korean Air	direct
16 Mar - 13 Apr	Korean Air	direct
26 Mar - 02 Apr	Delta	direct
31 Mar - 03 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 711€

Return flights