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

Return flights

06 Jun - 09 Jun	EVA Air
16 Jun - 20 Jun	Air China
06 Jun - 13 Jun	Air China
15 Jun - 25 Jun	Air China
15 Jun - 30 Jun	Air China
15 Jun - 20 Jun	Air China
01 Jun - 15 Jun	Air China
08 Jun - 23 Jun	Air China
09 Jun - 23 Jun	Air China
01 Jun - 08 Jun	Air China
27 Jun - 04 Jul	Air China
29 Jun - 04 Jul	Air China
30 Jun - 21 Jul	Air China
15 Jun - 02 Jul	Air China
20 Jun - 03 Jul	EVA Air
24 Jun - 23 Jul	EVA Air
27 Jun - 03 Jul	EVA Air
26 Jun - 03 Jul	EVA Air
16 Jun - 03 Jul	EVA Air
17 Jun - 03 Jul	EVA Air

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

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.

Book a cheap hotel in Chiang Mai

Cheap car rent in Chiang Mai

Cheapest return flights from Seoul to Chiang Mai in June from 401€

Return flights