AirHint found the following cheapest one-way flights from Seoul (ICN) to Chiang Mai (CNX) in May 2026 (see full year).
One-Way flights
| 18 May | Scoot | ||
| 16 May | Scoot | ||
| 29 May | Thai AirAsia X | ||
| 06 May | Scoot | ||
| 15 May | Scoot | ||
| 14 May | Scoot | ||
| 17 May | Scoot | ||
| 28 May | Scoot | ||
| 22 May | Scoot | ||
| 03 May | Scoot |
Also check the deals for return flights from Seoul to Chiang Mai 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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