Cheapest return GMP–SIN flights, April

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

Return flights

22 Apr - 27 Apr Air Busan
27 Apr - 29 Apr Air Busan
26 Apr - 29 Apr Korean Air
22 Apr - 29 Apr Jeju Air
28 Apr - 06 May Air Busan
27 Apr - 02 May Jeju Air
24 Apr - 28 Apr Korean Air
25 Apr - 27 Apr Jeju Air
23 Apr - 29 Apr Jeju Air
26 Apr - 28 Apr Korean Air
25 Apr - 29 Apr Jeju Air
25 Apr - 02 May Jeju Air
24 Apr - 27 Apr Jeju Air
24 Apr - 02 May Jeju Air
29 Apr - 06 May Air Seoul, Inc
28 Apr - 02 May Jeju Air
26 Apr - 03 May Jeju Air
27 Apr - 04 May Jeju Air
28 Apr - 09 May Jeju Air
28 Apr - 05 May Air Busan

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

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