AirHint found the following cheapest one-way flights from Singapore (SIN) to Seoul (ICN) in May 2026 (see full year).
One-Way flights
| 19 May | Jeju Air | direct | |
| 13 May | Jeju Air | direct | |
| 05 May | AirAsia | ||
| 12 May | Jeju Air | direct | |
| 14 May | AirAsia | ||
| 06 May | AirAsia | ||
| 18 May | AirAsia | ||
| 17 May | AirAsia | ||
| 02 May | T'way Air | direct | |
| 17 May | T'way Air | direct |
Also check the deals for return flights from Singapore to Seoul 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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