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

Return flights

28 Jun - 30 Jun	Thai AirAsia
16 Jun - 30 Jun	Thai AirAsia
17 Jun - 30 Jun	Thai AirAsia
21 Jun - 30 Jun	AirAsia
18 Jun - 30 Jun	AirAsia
20 Jun - 30 Jun	Thai AirAsia
26 Jun - 30 Jun	Thai AirAsia
28 Jun - 06 Jul	Thai AirAsia
14 Jun - 30 Jun	Thai AirAsia
16 Jun - 06 Jul	Thai AirAsia
17 Jun - 06 Jul	Thai AirAsia
21 Jun - 06 Jul	AirAsia
18 Jun - 06 Jul	AirAsia
12 Jun - 20 Jun	VietJet Air
13 Jun - 20 Jun	VietJet Air
20 Jun - 06 Jul	Thai AirAsia
26 Jun - 06 Jul	Thai AirAsia
30 Jun - 06 Jul	AirAsia
17 Jun - 01 Jul	Asiana Airlines	direct
17 Jun - 08 Jul	Scoot Tigerair	direct

Also check the deals for one-way flights from Singapore to Seoul 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 Singapore to Seoul in June from 230€

Return flights