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

Return flights

22 Apr - 25 Apr	Scoot Tigerair	direct
29 Apr - 04 May	Scoot Tigerair	direct
23 Apr - 28 Apr	AirAsia X
23 Apr - 26 Apr	AirAsia X
23 Apr - 10 May	AirAsia X
23 Apr - 12 May	AirAsia X
13 Apr - 20 Apr	Scoot Tigerair	direct
24 Apr - 28 Apr	AirAsia X
15 Apr - 22 Apr	Scoot Tigerair	direct
24 Apr - 26 Apr	AirAsia X
24 Apr - 10 May	AirAsia X
24 Apr - 12 May	AirAsia X
15 Apr - 20 Apr	Scoot Tigerair	direct
29 Apr - 10 May	AirAsia X
29 Apr - 12 May	AirAsia X
16 Apr - 28 Apr	AirAsia X
16 Apr - 21 Apr	AirAsia X
23 Apr - 08 May	AirAsia X
24 Apr - 08 May	AirAsia X
29 Apr - 08 May	AirAsia X

Also check the deals for one-way flights from Seoul to Singapore 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 Seoul to Singapore in April from 191€

Return flights