Cheapest return flights from Seoul to Chiang Mai in May from $169

Best time to book flights for Seoul (ICN) to Chiang Mai (CNX) flights at AirHint

AirHint found the following cheapest return flights from Seoul (ICN) to Chiang Mai (CNX) in May 2025 (see full year).

Return flights

16 May - 19 May AirAsia X
16 May - 20 May AirAsia X
14 May - 17 May Jeju Air direct
14 May - 15 May Jeju Air direct
14 May - 12 Jun Jeju Air direct
14 May - 14 Jun Jeju Air direct
07 May - 15 May Jeju Air direct
07 May - 17 May Eastar Jet direct
25 May - 31 May Vietnam Airlines
11 May - 15 May Jeju Air direct
25 May - 30 May Vietnam Airlines
16 May - 18 May AirAsia X
17 May - 12 Jun Jeju Air direct
29 May - 12 Jun Jeju Air direct
16 May - 04 Jun AirAsia X
26 May - 04 Jun AirAsia X
19 May - 04 Jun AirAsia X
21 May - 04 Jun AirAsia X
29 May - 01 Jun T'way Air
22 May - 04 Jun Eastar Jet direct

Also check the deals for one-way 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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