AirHint found the following cheapest return flights from Seoul (ICN) to Singapore (SIN) in June 2026 (see full year).

Return flights

12 Jun - 14 Jun	Cebu Pacific
12 Jun - 14 Jun	Asiana Airlines	direct
04 Jun - 11 Jun	Asiana Airlines	direct
22 Jun - 26 Jun	Asiana Airlines	direct
10 Jun - 17 Jun	Asiana Airlines	direct
08 Jun - 11 Jun	Asiana Airlines	direct
03 Jun - 06 Jun	Cebu Pacific
17 Jun - 22 Jun	Cebu Pacific
17 Jun - 22 Jun	Asiana Airlines	direct
03 Jun - 06 Jun	Asiana Airlines	direct

Also check the deals for one-way flights from Seoul to Singapore in June.

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 Singapore in June from 275€

Return flights