Direct (nonstop) flights from Chiang Mai to Seoul
5 airlines fly nonstop from Chiang Mai Intl (CNX) to Incheon International Airport (ICN). It's 2,100 miles (3,380 km), about 5h 20m in the air. Operated by Jeju Air, Air Busan, Korean Air and others.
Jeju Air
Air Busan
Korean Air
Jin Air
Eastar Jet
Route data last updated: May 26, 2026
Airlines with non-stop flights
Alternative Routes
Other ways to fly from Chiang Mai to Seoul with one stop · direct emits 355 kg CO₂ per passenger
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ICN → CNX: Flights from Seoul to Chiang MaiOther direct flights from Chiang Mai
Direct flights from Seoul (ICN)
Frequently Asked Questions
How long is the direct flight from Chiang Mai to Seoul?
A nonstop flight from Chiang Mai (CNX) to Seoul (ICN) takes approximately 5 hours and 20 minutes. The distance is 2,100 miles (3,380 km).
Which airlines fly nonstop from Chiang Mai to Seoul?
5 airlines: Jeju Air, Air Busan, Korean Air, Jin Air, Eastar Jet.
Is there a nonstop flight from Chiang Mai to Seoul?
Yes. 5 airlines: Jeju Air, Air Busan, Korean Air, Jin Air, Eastar Jet.
How far is Chiang Mai from Seoul?
The flight distance from Chiang Mai to Seoul is 2,100 miles (3,380 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Los Angeles.
What is the time difference between Chiang Mai and Seoul?
Seoul is 2 hours ahead of Chiang Mai. (Asia/Bangkok vs Asia/Seoul.)
What type of aircraft flies from Chiang Mai to Seoul?
At 5h 20m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
Do I need a visa to travel from Thailand to Republic of Korea?
Depends on your passport. Check with the Republic of Korea embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Chiang Mai to Seoul?
Roughly 355 kg CO2 per passenger one-way. That's about the same as driving 1,775 km.
Is the return flight from Seoul to Chiang Mai also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Chiang Mai to Seoul?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Chiang Mai Intl for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.