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

Return flights

19 Jun - 22 Jun	Cebu Pacific
18 Jun - 25 Jun	Cebu Pacific
12 Jun - 21 Jun	Cebu Pacific
21 Jun - 26 Jun	Cebu Pacific
18 Jun - 21 Jun	Cebu Pacific
06 Jun - 13 Jun	Cebu Pacific
01 Jun - 08 Jun	Cebu Pacific
11 Jun - 14 Jun	Cebu Pacific
17 Jun - 21 Jun	Cebu Pacific
17 Jun - 24 Jun	Cebu Pacific
26 Jun - 01 Jul	Asiana Airlines	direct
27 Jun - 02 Jul	Asiana Airlines	direct
19 Jun - 01 Jul	AirAsia X
18 Jun - 01 Jul	AirAsia X
17 Jun - 01 Jul	AirAsia X
15 Jun - 01 Jul	AirAsia X
16 Jun - 01 Jul	AirAsia X
10 Jun - 01 Jul	AirAsia X
22 Jun - 01 Jul	AirAsia X
11 Jun - 01 Jul	AirAsia X

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 $322

Return flights