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

Return flights

06 Mar - 09 Mar	T'way Air
02 Mar - 05 Mar	T'way Air
07 Mar - 11 Mar	T'way Air
05 Mar - 09 Mar	T'way Air
06 Mar - 10 Mar	T'way Air
06 Mar - 11 Mar	T'way Air
08 Mar - 12 Mar	T'way Air
05 Mar - 08 Mar	T'way Air
04 Mar - 08 Mar	T'way Air
05 Mar - 07 Mar	T'way Air
30 Mar - 06 Apr	Air China
01 Mar - 30 Apr	Air China

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

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 March from 372€

Return flights