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

One-Way flights

21 Jun	Cebu Pacific
04 Jun	Cebu Pacific
16 Jun	AirAsia X
22 Jun	AirAsia X
17 Jun	AirAsia X
03 Jun	AirAsia X
27 Jun	Thai Airways
01 Jun	Thai Airways
17 Jun	Scoot Tigerair	direct
27 Jun	Scoot Tigerair	direct

Also check the deals for return 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 one-way flights from Seoul to Singapore in June from 122€

One-Way flights