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

Return flights

20 Apr - 27 Apr	Scoot	direct
25 Apr - 29 Apr	Scoot	direct
15 Apr - 22 Apr	Scoot	direct
22 Apr - 29 Apr	Scoot	direct
20 Apr - 25 Apr	Scoot	direct
27 Apr - 11 May	Thai AirAsia
26 Apr - 11 May	Thai AirAsia
06 Apr - 15 Apr	Vietnam Airlines
09 Apr - 12 Apr	Vietnam Airlines
21 Apr - 11 May	Thai AirAsia
26 Apr - 28 Apr	Thai AirAsia
29 Apr - 11 May	AirAsia
24 Apr - 11 May	Thai AirAsia
23 Apr - 11 May	Thai AirAsia
25 Apr - 09 May	VietJet Air
12 Apr - 18 Apr	VietJet Air
19 Apr - 25 Apr	VietJet Air
29 Apr - 04 May	Scoot	direct
25 Apr - 09 May	Scoot	direct
29 Apr - 19 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 206€

Return flights