Cheapest return flights from Seoul to Singapore in September from $163

AirHint found the following cheapest return flights from Seoul (ICN) to Singapore (SIN) in September 2025 (see full year).

Return flights

19 Sep - 24 Sep Jeju Air direct
16 Sep - 23 Sep Jeju Air direct
15 Sep - 17 Sep Jeju Air direct
08 Sep - 02 Oct Jeju Air direct
19 Sep - 25 Sep Jeju Air direct
08 Sep - 17 Sep Jeju Air direct
19 Sep - 27 Sep Jeju Air direct
19 Sep - 29 Sep Jeju Air direct
17 Sep - 30 Sep Jeju Air direct
09 Sep - 24 Sep Jeju Air direct
19 Sep - 30 Sep Jeju Air direct
17 Sep - 01 Oct Jeju Air direct
13 Sep - 03 Oct Jeju Air direct
19 Sep - 02 Oct Jeju Air direct
10 Sep - 02 Oct Jeju Air direct
16 Sep - 03 Oct Jeju Air direct
23 Sep - 05 Oct Jeju Air direct
24 Sep - 05 Oct Jeju Air direct
25 Sep - 01 Oct Jeju Air direct
22 Sep - 04 Oct Jeju Air direct

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

Skyscanner

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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