AirHint found the following cheapest return flights from Seoul (ICN) to Chiang Mai (CNX)
in August 2025 (see full year ).
Return flights
24 Aug
- 27 Aug
Singapore Airlines
$ 373
31 Aug
- 03 Sep
Singapore Airlines
$ 373
29 Aug
- 06 Sep
China Airlines
$ 373
15 Aug
- 19 Aug
Scoot Tigerair
$ 414
08 Aug
- 16 Aug
Malaysia Airlines
$ 418
10 Aug
- 16 Aug
Malaysia Airlines
$ 418
24 Aug
- 08 Sep
AirAsia X
$ 428
24 Aug
- 03 Sep
AirAsia X
$ 437
24 Aug
- 06 Sep
AirAsia X
$ 437
24 Aug
- 02 Sep
AirAsia X
$ 437
24 Aug
- 05 Sep
AirAsia X
$ 440
04 Aug
- 06 Aug
China Airlines
$ 454
05 Aug
- 02 Sep
China Airlines
$ 454
24 Aug
- 27 Aug
Korean Air
$ 468
direct
31 Aug
- 03 Sep
Korean Air
$ 468
direct
29 Aug
- 06 Sep
Korean Air
$ 468
direct
06 Aug
- 12 Aug
Thai Airways
$ 500
04 Aug
- 19 Aug
AirAsia X
$ 507
04 Aug
- 16 Aug
AirAsia X
$ 507
06 Aug
- 19 Aug
Thai AirAsia X
$ 523
Also check the deals for one-way flights from Seoul to Chiang Mai in August .
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.