AirHint found the following cheapest one-way flights from Chiang Mai (CNX) to Seoul (ICN) in August 2025 (see full year).

One-Way flights

30 Aug	Eastar Jet	direct
28 Aug	Thai AirAsia
26 Aug	Thai AirAsia
25 Aug	Jin Air	direct
26 Aug	Jin Air	direct
29 Aug	Eastar Jet	direct
19 Aug	Eastar Jet	direct
22 Aug	China Southern
23 Aug	China Southern
24 Aug	Jin Air	direct

Also check the deals for return flights from Chiang Mai to Seoul 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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest one-way flights from Chiang Mai to Seoul in August from 102€

One-Way flights