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

Return flights

14 Apr - 20 Apr	AirAsia
28 Apr - 11 May	AirAsia
26 Apr - 09 May	AirAsia
23 Apr - 09 May	AirAsia
14 Apr - 22 Apr	AirAsia
14 Apr - 25 Apr	AirAsia
24 Apr - 09 May	Malaysia Airlines
26 Apr - 10 May	Malaysia Airlines
25 Apr - 09 May	AirAsia
01 Apr - 14 Apr	AirAsia
11 Apr - 17 Apr	Air China
03 Apr - 19 Apr	Malaysia Airlines
14 Apr - 20 Apr	SriLankan Airlines	direct
28 Apr - 11 May	SriLankan Airlines	direct
26 Apr - 11 May	SriLankan Airlines	direct

Also check the deals for one-way flights from Colombo to Seoul in April.

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 April from 249€

Return flights