AirHint found the following cheapest return flights from Chiang Mai (CNX) to Seoul (ICN) in May 2026 (see full year).
Return flights
| 15 May - 18 May | Thai AirAsia | ||
| 20 May - 27 May | Thai AirAsia | ||
| 01 May - 03 May | Malaysia Airlines | ||
| 01 May - 09 May | Malaysia Airlines | ||
| 26 May - 30 May | China Southern |
Also check the deals for one-way flights from Chiang Mai 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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