AirHint found the following cheapest one-way flights from Seoul (GMP) to Chiang Mai (CNX) in May 2026 (see full year).
One-Way flights
| 28 May | Air China | ||
| 11 May | Air China | ||
| 18 May | Air China | ||
| 15 May | China Eastern | ||
| 20 May | China Eastern | ||
| 25 May | Air China | ||
| 13 May | EVA Air | ||
| 07 May | Air China | ||
| 04 May | Air China |
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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