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

Return flights

09 Jan - 13 Jan	Air China
21 Jan - 25 Jan	Air China
15 Jan - 20 Jan	Air China
15 Jan - 17 Jan	Air China
14 Jan - 19 Jan	Air China
13 Jan - 15 Jan	Air China
22 Jan - 25 Jan	Air China
14 Jan - 21 Jan	Air China
13 Jan - 17 Jan	Air China
13 Jan - 19 Jan	Air China
27 Jan - 03 Feb	Air China
26 Jan - 04 Feb	Air China
29 Jan - 03 Feb	Jeju Air
29 Jan - 02 Feb	Jeju Air
20 Jan - 25 Feb	Jeju Air
29 Jan - 06 Feb	Jeju Air
24 Jan - 08 Feb	Jeju Air
21 Jan - 09 Feb	T'way Air
26 Jan - 02 Feb	T'way Air
30 Jan - 06 Feb	T'way Air

Also check the deals for one-way flights from Seoul to Singapore in January.

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 January from $247

Return flights