Cheapest return flights from Seoul to Chiang Mai in May from 259€

AirHint found the following cheapest return flights from Seoul (GMP) to Chiang Mai (CNX) in May 2026 (see full year).

Return flights

07 May - 14 May Korean Air
23 May - 26 May EVA Air
09 May - 12 May EVA Air
29 May - 02 Jun EVA Air
09 May - 16 May Air China
12 May - 18 May Air China
16 May - 21 May Air China
18 May - 21 May Air China
11 May - 16 May Air China
26 May - 30 May Air China
16 May - 30 May Air China
28 May - 02 Jun Air China
28 May - 01 Jun Air China
21 May - 01 Jun Air China
21 May - 22 Jun Air China
16 May - 30 Jun Air China
30 May - 04 Jun Air China
30 May - 08 Jun Air China
29 May - 08 Jun EVA Air
29 May - 04 Jun EVA Air

Also check the deals for one-way flights from Seoul to Chiang Mai in May.

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