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

Return flights

13 Apr - 22 Apr	Scoot	direct
22 Apr - 29 Apr	Scoot	direct
20 Apr - 27 Apr	Scoot	direct
18 Apr - 22 Apr	Scoot	direct
18 Apr - 25 Apr	Scoot	direct
10 Apr - 13 Apr	Vietnam Airlines
26 Apr - 07 May	Thai AirAsia
26 Apr - 14 May	Thai AirAsia
16 Apr - 19 Apr	Air China
02 Apr - 05 Apr	Vietnam Airlines
15 Apr - 21 Apr	Scoot
02 Apr - 09 Apr	Vietnam Airlines
25 Apr - 02 May	Scoot	direct
21 Apr - 07 May	Thai AirAsia
27 Apr - 07 May	Thai AirAsia
27 Apr - 14 May	Thai AirAsia
27 Apr - 01 May	Scoot
29 Apr - 07 May	Thai AirAsia
29 Apr - 14 May	Thai AirAsia
16 Apr - 07 May	AirAsia

Also check the deals for one-way flights from Singapore to Seoul 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 Singapore to Seoul in April from $241

Return flights