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

Return flights

12 May - 17 May	AirAsia
12 May - 20 May	AirAsia
12 May - 27 May	AirAsia
10 May - 17 May	AirAsia
10 May - 20 May	AirAsia
10 May - 27 May	AirAsia
12 May - 30 May	AirAsia
12 May - 01 Jun	AirAsia
15 May - 17 May	AirAsia
08 May - 17 May	AirAsia
09 May - 17 May	AirAsia
15 May - 01 Jun	AirAsia
31 May - 17 Jun	AirAsia
31 May - 19 Jun	AirAsia
29 May - 17 Jun	AirAsia
29 May - 01 Jun	AirAsia

Also check the deals for one-way flights from Colombo to Seoul 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 Colombo to Seoul in May from $488

Return flights