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

Return flights

06 Mar - 09 Mar	T'way Air	direct
13 Mar - 16 Mar	T'way Air	direct
04 Mar - 07 Mar	Scoot	direct
07 Mar - 11 Mar	Scoot	direct
06 Mar - 08 Mar	AirAsia X
09 Mar - 30 Mar	Scoot	direct
03 Mar - 07 Mar	Cebu Pacific
05 Mar - 09 Mar	Thai VietJet Air
01 Mar - 04 Mar	Philippines AirAsia Inc.
14 Mar - 17 Mar	Scoot
28 Mar - 04 Apr	Asiana Airlines	direct
11 Mar - 01 Apr	AirAsia X
12 Mar - 01 Apr	AirAsia X
15 Mar - 01 Apr	AirAsia X
14 Mar - 01 Apr	AirAsia X
27 Mar - 13 Apr	AirAsia X
27 Mar - 14 Apr	AirAsia X
15 Mar - 04 Apr	AirAsia X
27 Mar - 16 Apr	AirAsia X
27 Mar - 01 Apr	AirAsia X

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 $201

Return flights