Cheapest return flights from Chiang Mai to Seoul in October from $245

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

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

Return flights

22 Oct - 10 Nov Eastar Jet
22 Oct - 12 Nov Eastar Jet
22 Oct - 25 Oct Eastar Jet direct
18 Oct - 25 Oct Eastar Jet direct
15 Oct - 25 Oct Eastar Jet direct
15 Oct - 18 Oct Eastar Jet direct
22 Oct - 23 Oct Eastar Jet direct
18 Oct - 23 Oct Eastar Jet direct
15 Oct - 23 Oct Eastar Jet direct
15 Oct - 16 Oct Eastar Jet direct
18 Oct - 22 Oct Eastar Jet direct
15 Oct - 22 Oct Eastar Jet direct
25 Oct - 10 Nov Eastar Jet
25 Oct - 12 Nov Eastar Jet
22 Oct - 03 Nov Eastar Jet
22 Oct - 06 Nov Eastar Jet
22 Oct - 01 Nov Eastar Jet
22 Oct - 02 Nov Eastar Jet
22 Oct - 08 Nov Eastar Jet
18 Oct - 03 Nov Eastar Jet

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

Skyscanner

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