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Direct flights from Seoul to Chiang Mai

Did you mean Flights from Chiang Mai to Seoul?

Flightmap/Flights from ICN/ICN to CNX

Seoul

South Korea

ICN

Incheon International Airport

Chiang Mai

Thailand

CNX

Chiang Mai International Airport

Route
Nonstop service available
Distance
2,102 miles
Marketing airlines
8 airlines
Aircraft
5 aircraft types
Dates
Oct 19, 2026 – Oct 6, 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.

The award price preview is temporarily unavailable. This does not mean the route is sold out. Use the search controls to check other dates and routes.

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Explore these airports and cities

  • Flights from ICN
  • Flights to CNX
  • Award flights to Seoul

Seoul to Chiang Mai route overview

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

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

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

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 6, 2027.

Marketing airlines on the Seoul to Chiang Mai 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 ICN to CNX

Frequently asked questions

Which airports serve the Seoul to Chiang Mai route?

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

How far is Chiang Mai from Seoul?

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

Are there direct flights from ICN to CNX?

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

Which airlines market flights from ICN to CNX?

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.

Which aircraft fly from ICN to CNX?

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).

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