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

Return flights

06 May - 13 May	United
26 May - 10 Jun	Air Canada
08 May - 16 May	United
10 May - 17 May	United
01 May - 09 May	United
02 May - 09 May	United
09 May - 17 May	Air Canada
11 May - 25 May	United
31 May - 07 Jun	Air Canada
15 May - 22 May	United
17 May - 29 May	United
17 May - 24 May	United

Also check the deals for one-way flights from Seoul to Cancun 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 Seoul to Cancun in May from $1031

Return flights