Direct flights from Chiang Mai to Seoul

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Chiang Mai

Thailand

CNX

Chiang Mai International Airport

Seoul

South Korea

ICN

Incheon International Airport

Route: Nonstop service available
Distance: 2,102 miles
Marketing airlines: 8 airlines
Aircraft: 5 aircraft types
Dates: Oct 19, 2026 – Oct 17, 2027

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Departure window: 2026-10-23 – 2026-11-21.

No recent fares appear in this limited preview. This does not mean the route is sold out. Use the search controls to check other dates and routes.

Chiang Mai to Seoul route overview

Chiang Mai International Airport (CNX) serves Chiang Mai; Incheon International Airport (ICN) serves Seoul.

The airports are 2,102 miles apart by great-circle distance.

Roame's current schedule feed shows nonstop service from CNX to ICN.

Marketing airlines listed in the current schedule, including codeshare sellers, are Jeju Air (7C), Air Busan (BX), Delta Air Lines (DL), Hahn Air Systems (H1), Korean Air (KE), Jin Air (LJ), T'way Air (TW) and Eastar Jet (ZE). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Oct 19, 2026 – Oct 17, 2027.

Marketing airlines on the Chiang Mai to Seoul route

These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.

Delta Air Lines (DL)Codeshare only
Hahn Air Systems (H1)Codeshare only

Airline alliance affiliations represented: SkyTeam

Aircraft flying from CNX to ICN

Frequently asked questions

Which airports serve the Chiang Mai to Seoul route?

Chiang Mai International Airport (CNX) is the origin airport and Incheon International Airport (ICN) is the destination airport.

How far is Seoul from Chiang Mai?

CNX and ICN are approximately 2,102 miles apart by great-circle distance.

Are there direct flights from CNX to ICN?

Yes. Roame's current schedule feed shows nonstop service from CNX to ICN.

Which airlines market flights from CNX to ICN?

Which aircraft fly from CNX to ICN?

Aircraft listed in the current schedule include Airbus A321 (321), Airbus A321neo (32Q), Airbus A330-300 (333), Boeing 737-800 (738) and Boeing 737 MAX 8 (7M8).