Cheapest return flights from Seoul to Singapore in September from $322

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

Return flights

07 Sep - 11 Sep Korean Air
07 Sep - 10 Sep Jeju Air
08 Sep - 17 Sep Jeju Air
02 Sep - 09 Sep Jeju Air
14 Sep - 18 Sep Jeju Air
14 Sep - 21 Sep T'way Air
08 Sep - 14 Sep T'way Air
11 Sep - 16 Sep Jeju Air
07 Sep - 13 Sep Jeju Air
13 Sep - 18 Sep Jeju Air
28 Sep - 03 Oct Air China
30 Sep - 10 Oct Air China
30 Sep - 05 Oct EVA Air
28 Sep - 05 Oct Air China
24 Sep - 01 Oct Jeju Air

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

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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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