Cheapest return GMP–SIN flights, May

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

Return flights

29 May - 03 Jun China Eastern
30 May - 31 May Jeju Air
27 May - 31 May Jeju Air
24 May - 31 May Jeju Air
25 May - 01 Jun Air Seoul, Inc
23 May - 24 May Jeju Air
28 May - 31 May Jeju Air
25 May - 27 May China Eastern
24 May - 04 Jun Jeju Air
21 May - 24 May Jeju Air
21 May - 31 May Jeju Air
29 May - 31 May Air Busan
25 May - 29 May Air Seoul, Inc
27 May - 03 Jun Eastar Jet
23 May - 03 Jun T'way Air
28 May - 03 Jun T'way Air
25 May - 03 Jun T'way Air
30 May - 03 Jun Air Busan
26 May - 02 Jun Jeju Air
23 May - 02 Jun T'way Air

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

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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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