Discover the historical beauty of Wat Chedi Luang, a prominent temple in Chiang Mai, Thailand. — flights from Seoul to Chiang Mai
Seoul, South KoreaChiang Mai, Thailand

Flights from Seoul to Chiang Mai

Nonstop flights from Seoul (ICN) to Chiang Mai (CNX) take about 4h 44m (3,382 km). Air Busan, Jeju Air and Eastar Jet fly it. Lowest fare seen: $138 one-way, nonstop (22 Oct 2026).

All flights from Seoul →All flights to Chiang Mai →

Photo of Chiang Mai: Guillaume Meurice on Pexels.

When you land in Chiang Mai

The airport transfer and the few things worth sorting before you fly.

Discover the historical beauty of Wat Chedi Luang, a prominent temple in Chiang Mai, Thailand. — arriving in Chiang Mai

Airport transfer

CNX → Chiang Mai, booked before you fly

A private driver meets you in arrivals at a price agreed when you book. Book with Welcome Pickups.

See transfer prices
Red facade of Seoul Square with multiple international flags displayed. — lounges at Seoul Incheon AirportSeoul Incheon Airport · 10 lounges
Before you flyAirport lounges at Seoul Incheon →
Trains, buses and taxi faresCNX to Chiang Mai: getting into town →Early arrival or late flightLuggage storage in Chiang Mai →1 drop-off point

Things to book in Chiang Mai

All 19 things to do in Chiang Mai →
from €27.69
Day Trips from Chiang Mai 4.4 · 12 Tiqets reviews
from €27.69
Doi Inthanon National Park 3.8 · 6 Tiqets reviews
from €39.57
Wat Rong Khun - White Temple 5.0 · 6 Tiqets reviews
Doi Suthepfrom €22.32
Doi Suthep 4.5 · 2 Tiqets reviews

Find hotels in Chiang Mai

Hotels, hostels & more · Trip.com

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Airlines flying Seoul to Chiang Mai

Carriers on ICN–CNX according to our route data and nonstop fares seen as of 22 Oct 2026. Not a complete list.

✈ Air Busannonstop fare seen✈ Jeju Airnonstop fare seen✈ Eastar Jetnonstop fare seen✈ Jin Airnonstop fare seen

Seoul to Chiang Mai fares by month

Cheapest month seen for a nonstop flight: Oct 2026, from $138 one-way. Lowest one-way fares seen for departures in each month, read 22 Oct 2026.

DepartingNonstop fromCheaper with stops
Oct 2026$13830 Oct 2026 · Jeju Air—
Nov 2026$1387 Nov 2026 · Air Busan—
Dec 2026$1456 Dec 2026 · Air Busan—
Mar 2027$22431 Mar 2027 · Eastar Jet$197 · 1 stop31 Mar 2027
Jun 2027—$199 · 2 stops8 Jun 2027

When to go for the lowest fare

Fares were close across the months we saw: $138 for October 2026, $145 at best after that.

From Travelpayouts flight-search data, city to city (Seoul to Chiang Mai, 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 Chiang Mai

Based on weather and travel conditions in Thailand

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Best monthsGoodAvoid if possible

The cool, dry season (November–February) is ideal — sunny skies, low humidity, and comfortable temperatures around 25–30°C. The monsoon (May–October) brings heavy rain especially in the south.

Peak season: November – February

More for this trip

Frequently asked questions — Seoul to Chiang Mai flights

How long is the flight from Seoul to Chiang Mai?
A nonstop flight from Seoul (ICN) to Chiang Mai (CNX) takes about 4h 44m, covering 3,382 km. That is an estimate from the distance — actual time varies with the airline, aircraft and winds, and connecting itineraries take longer.
How far is Seoul from Chiang Mai by air?
The great-circle distance between Incheon International Airport and Chiang Mai International Airport is 3,382 km (2,101 miles), a medium-haul route.
Which airlines fly from Seoul to Chiang Mai?
Airlines with flights or nonstop fares on the ICN–CNX route include Air Busan, Jeju Air, Eastar Jet and Jin Air. This is not a complete list — schedules change by season, so check the current options before booking.
How much does a flight from Seoul to Chiang Mai cost?
The lowest one-way fare seen recently on ICN–CNX was $138 USD with Air Busan (nonstop), departing 7 Nov 2026, found in fare searches as of 22 Oct 2026. Fares change constantly and depend on the date, so check the current price before booking.
What is the cheapest month to fly from Seoul to Chiang Mai?
In fares seen on 22 Oct 2026, departures in October 2026 were cheapest, from $138 one-way, against $199 for June 2027, the dearest month. Fares change daily, so check your own dates.
Do I need a visa to travel from South Korea to Thailand?
It depends on your passport. Some nationalities can enter Thailand visa-free or get a visa on arrival; others must apply in advance. Use AirConnect's Visa Checker to see the rules for your passport.
What is the best time to visit Chiang Mai?
The cool, dry season (November–February) is ideal — sunny skies, low humidity, and comfortable temperatures around 25–30°C. The monsoon (May–October) brings heavy rain especially in the south.

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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