Cheapest return flights from Seoul to Chiang Mai in April from $479

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

Return flights

09 Apr - 12 Apr T'way Air
02 Apr - 23 Apr Air China
21 Apr - 23 Apr Air China
04 Apr - 08 Apr China Eastern
09 Apr - 14 Apr Air China
08 Apr - 15 Apr China Eastern
18 Apr - 21 Apr Air China
01 Apr - 07 Apr EVA Air
23 Apr - 27 Apr Air China
11 Apr - 16 Apr Air China
29 Apr - 01 May EVA Air
29 Apr - 05 May EVA Air
29 Apr - 10 May China Eastern
25 Apr - 07 May EVA Air
30 Apr - 05 May Air China
30 Apr - 09 May Air China
29 Apr - 04 May EVA Air
28 Apr - 04 May EVA Air
25 Apr - 01 May EVA Air
30 Apr - 07 May Air China

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

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