Flights from Chiang Mai to Seoul
Nonstop flights from Chiang Mai (CNX) to Seoul (ICN) take about 4h 44m (3,382 km). Jeju Air, Air Busan and Eastar Jet fly it. Lowest fare seen: $128 one-way, nonstop (22 Oct 2026).
Photo of Seoul: Henry Acevedo on Pexels.
When you land in Seoul
The airport transfer and the few things worth sorting before you fly.
Airport transfer
ICN → Seoul, booked before you fly
A private driver meets you in arrivals at a price agreed when you book. Book with Welcome Pickups.
See transfer pricesFind hotels in Seoul
Hotels, hostels & more · Trip.com
Airlines flying Chiang Mai to Seoul
Carriers on CNX–ICN according to our route data and nonstop fares seen as of 22 Oct 2026. Not a complete list.
Chiang Mai to Seoul fares by month
Cheapest month seen for a nonstop flight: Oct 2026, from $128 one-way. Lowest one-way fares seen for departures in each month, read 22 Oct 2026.
| Departing | Nonstop from | Cheaper with stops |
|---|---|---|
| Oct 2026 | $12831 Oct 2026 · Jeju Air | — |
| Nov 2026 | $1406 Nov 2026 · Eastar Jet | — |
| Dec 2026 | $1661 Dec 2026 · Jin Air | — |
| Jan 2027 | $1706 Jan 2027 · Eastar Jet | — |
| Feb 2027 | $37013 Feb 2027 · Eastar Jet | $353 · 1 stop13 Feb 2027 |
| Mar 2027 | $23031 Mar 2027 · Eastar Jet | — |
When to go for the lowest fare
The next few weeks were the cheapest to fly: from $128 in October 2026, against $166 at best later on.
From Travelpayouts flight-search data, city to city (Chiang Mai to Seoul, any airport), USD, read 22 Oct 2026. These are fares that were on sale, not a guarantee of today's price; an airline is named only where we know it flies this route.
Best time to fly to Seoul
Based on weather and travel conditions in South Korea
Spring and autumn offer mild weather and stunning scenery. Summer (July–August) is hot and rainy; winter is bitterly cold but perfect for ski resorts like Gangwon.
More for this trip
Frequently asked questions — Chiang Mai to Seoul flights
How long is the flight from Chiang Mai to Seoul?
How far is Chiang Mai from Seoul by air?
Which airlines fly from Chiang Mai to Seoul?
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What is the cheapest month to fly from Chiang Mai to Seoul?
Do I need a visa to travel from Thailand to South Korea?
What is the best time to visit Seoul?
Sources: fares from Travelpayouts flight-search data, seen 22 Oct 2026; airlines from each carrier's published network and nonstop fares on sale; distance from OurAirports coordinates; flight time estimated from distance. Fares change daily.
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