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Cheap Flights from Seoul to Chiang Mai

Compare Seoul to Chiang Mai flight deals

Find the cheapest month or even day of the year to fly to Chiang Mai

Book the best Chiang Mai fare with no extra fees

Flight deals from Seoul to Chiang Mai Airport

Looking for a cheap last-minute deal or the best return flight from Seoul to Chiang Mai Airport? If you want to travel next month, return fares start from R 3,058. Find the lowest prices on one-way and return tickets right here.
Chiang Mai.R 1,405 per passenger.Departing Tue, 19 May.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Incheon International on Tue, 19 May, arriving in Chiang Mai.Price includes taxes and charges.From R 1,405, select.
Chiang Mai.R 1,411 per passenger.Departing Wed, 3 Jun.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Incheon International on Wed, 3 Jun, arriving in Chiang Mai.Price includes taxes and charges.From R 1,411, select.
Chiang Mai.R 1,543 per passenger.Departing Mon, 5 Oct.One-way flight with AirAsia X.Outbound indirect flight with AirAsia X, departs from Incheon International on Mon, 5 Oct, arriving in Chiang Mai.Price includes taxes and charges.From R 1,543, select.
Chiang Mai.R 1,694 per passenger.Departing Thu, 28 May.One-way flight with Air Busan.Outbound direct flight with Air Busan departs from Incheon International on Thu, 28 May, arriving in Chiang Mai.Price includes taxes and charges.From R 1,694, select.
Chiang Mai.R 1,898 per passenger.Departing Mon, 14 Dec.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Incheon International on Mon, 14 Dec, arriving in Chiang Mai.Price includes taxes and charges.From R 1,898, select.
Chiang Mai.R 1,907 per passenger.Departing Thu, 27 Aug.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Incheon International on Thu, 27 Aug, arriving in Chiang Mai.Price includes taxes and charges.From R 1,907, select.
Chiang Mai.R 1,907 per passenger.Departing Wed, 2 Sep.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Incheon International on Wed, 2 Sep, arriving in Chiang Mai.Price includes taxes and charges.From R 1,907, select.
Chiang Mai.R 1,907 per passenger.Departing Thu, 11 Mar.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Incheon International on Thu, 11 Mar, arriving in Chiang Mai.Price includes taxes and charges.From R 1,907, select.
Chiang Mai.R 1,909 per passenger.Departing Wed, 27 Jan.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Incheon International on Wed, 27 Jan, arriving in Chiang Mai.Price includes taxes and charges.From R 1,909, select.
Chiang Mai.R 1,911 per passenger.Departing Wed, 10 Feb.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Incheon International on Wed, 10 Feb, arriving in Chiang Mai.Price includes taxes and charges.From R 1,911, select.
Chiang Mai.R 2,303 per passenger.Departing Thu, 2 Jul.One-way flight with Shandong Airlines.Outbound indirect flight with Shandong Airlines, departs from Incheon International on Thu, 2 Jul, arriving in Chiang Mai.Price includes taxes and charges.From R 2,303, select.
Chiang Mai.R 2,329 per passenger.Departing Sat, 5 Sep.One-way flight with Eastar Jet.Outbound direct flight with Eastar Jet departs from Incheon International on Sat, 5 Sep, arriving in Chiang Mai.Price includes taxes and charges.From R 2,329, select.
Chiang Mai.R 2,380 per passenger.Departing Sat, 24 Oct.One-way flight with Eastar Jet.Outbound direct flight with Eastar Jet departs from Incheon International on Sat, 24 Oct, arriving in Chiang Mai.Price includes taxes and charges.From R 2,380, select.
Chiang Mai.R 2,386 per passenger.Departing Sat, 6 Jun.One-way flight with Jeju Air.Outbound direct flight with Jeju Air departs from Incheon International on Sat, 6 Jun, arriving in Chiang Mai.Price includes taxes and charges.From R 2,386, select.
Chiang Mai.R 2,427 per passenger.Departing Mon, 13 Apr.One-way flight with Shandong Airlines.Outbound indirect flight with Shandong Airlines, departs from Incheon International on Mon, 13 Apr, arriving in Chiang Mai.Price includes taxes and charges.From R 2,427, select.
Chiang Mai.R 2,497 per passenger.Departing Sun, 30 Aug.One-way flight with Eastar Jet.Outbound direct flight with Eastar Jet departs from Incheon International on Sun, 30 Aug, arriving in Chiang Mai.Price includes taxes and charges.From R 2,497, select.

Find the cheapest month to fly from Seoul to Chiang Mai

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seoul to Chiang Mai flights are currently cheapest in May.
Apr
from R 2,427
May
from R 1,405
Jun
from R 1,411
Jul
from R 2,303
Aug
from R 1,907
Sep
from R 1,907
Oct
from R 1,543
Nov
from R 3,048
Dec
from R 1,898
Jan
from R 1,909
Feb
from R 1,911
Mar
from R 1,907

Direct flights from Seoul to Chiang Mai

Seoul to Chiang Mai: Alternative routes

Compare routes from Seoul to Chiang Mai below. You may find an airport to fly into that's cheaper, faster, or easier than Chiang Mai.

Chiang Mai

4km from central Chiang Mai
ClosestCheapest
from R 1,405
Search flights

Lampang

79km from central Chiang Mai
from R 3,755
Search flights

Seoul to Chiang Mai: Flight information

The things to know before you go.
Cheapest flight foundR 1,405
Cheapest month to flyMay
Average flight time5 hrs, 52 mins
Most popular airlineKorean Air
Average flights per week26

Finding cheap flights from Seoul to Chiang Mai: Frequently asked questions

The best price we found for a return flight from Seoul to Chiang Mai is R 3,051. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
5 hours and 52 minutes is the average flight time from Seoul to Chiang Mai.
Korean Air, Jeju Air and Delta fly direct from Seoul to Chiang Mai.
As of April 2026, there are 26 flights per week flying from Seoul to Chiang Mai.
The cheapest month to fly from Seoul to Chiang Mai is usually May.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seoul to Chiang Mai Airport on Wednesday, 6 May 2026.
Yes – the average flight time is 5 hours and 52 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Chiang Mai but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Chiang Mai is around 40 days in advance, so don’t leave your flight to the last minute.

Flying from Seoul to Chiang Mai International Airport (CNX): What you need to know

  • Seoul's main base, Seoul Incheon International Airport (ICN), is where countless incredible trips begin. Explore the departure options from here when searching for a flight from Seoul to Chiang Mai International Airport (CNX).

  • Expect to be in the air for 6 hours 5 minutes. That's the average duration of a direct Seoul to Chiang Mai International Airport flight.

  • The timezone in Chiang Mai is UTC+7, which is two hours behind Seoul. Chiang Mai International Airport is located in Chiang Mai.

  • You can choose from 18 direct services each week between Seoul Incheon International Airport (ICN) and Chiang Mai International Airport (CNX). This is the most popular route when departing from Seoul.

  • For a smooth journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you plenty of time to catch your flight from Seoul to CNX.

  • You'll likely experience bigger queues in popular months like January and other peak periods. Arriving up to four hours ahead of an international flight and two hours for domestic departures is a wise move.

Airports in Seoul

Seoul Incheon International Airport (ICN)

  • Seoul Incheon International Airport (ICN) offers an easy route to your destination. Nonstop flights from Seoul to Chiang Mai International Airport (CNX) can be booked from this terminal.

  • A good selection of airlines at ICN offer direct flights from Seoul to Chiang Mai International Airport. Some of the most popular are:

  • Most travellers choose to book seats with Eastar Jet from ICN to CNX.

  • Jin Air is the top performer for punctuality on this route.

  • A stopover is the perfect opportunity to take a break from travelling and maybe even explore another city. When searching for cheap flights from Seoul to CNX leaving from Seoul Incheon International Airport (ICN), uncheck the 'Direct flights only' box to find all potential stops. Some popular options include:

    • Bangkok Suvarnabhumi International Airport (BKK)

    • Hong Kong International Airport (HKG)

    • Taiwan Taoyuan International Airport (TPE)

  • ICN is about 48 kilometres from central Seoul. If you're ride-sharing, driving or catching a taxi from the centre, it'll take you 1 hour 5 minutes or so to get there, depending on traffic. If you're using public transport, expect the trip time to be around 50 minutes.

  • Want an easy start to your journey? Stay near Seoul Incheon International Airport. Whether you're catching an early flight from Seoul to Chiang Mai International Airport or want to avoid feeling rushed, these hotels are just what you're after:

  • Of all flights departing from Seoul Incheon International Airport, 74% touch down on time at their destination.

Seoul Gimpo International Airport (GMP)

  • Break up your flight from Seoul to Chiang Mai International Airport with a stop at Beijing Capital International Airport (PEK). A major connection between Seoul Gimpo International Airport and CNX, it's a good opportunity to unwind before the next leg of your journey.

  • With public transport, you can travel from central Seoul to GMP in around 35 minutes. The terminal is roughly 16 kilometres away, and getting there by car takes approximately 30 minutes.

  • Get your holiday started early with an additional night away from home. Before your Seoul to CNX flight, kick back in one of these hotels near Seoul Gimpo International Airport:

  • Seoul Gimpo International Airport has a strong track record for reliability and timeliness. 80% of flights departing here make it to their final destination as planned.

About Chiang Mai International Airport (CNX)

Getting from Chiang Mai International Airport (CNX) to central Chiang Mai

  • From Chiang Mai International Airport, central Chiang Mai is around 3 kilometres away. It takes about 15 minutes to reach the city centre by car.

  • Travelling by public transport takes roughly 25 minutes.

How to find the cheapest flights from Seoul to Chiang Mai International Airport (CNX)

  • The lowest price we've found for a one-way ticket from Seoul to Chiang Mai International Airport is R 1,405. For a return flight on this route, the best price is R 3,051. Depending on when and how early you book, these fares could change.

  • Score cheap flights from Seoul to CNX by booking one month ahead. Based on our research, that's the ideal time frame for finding a bargain.

  • Organise your trip for June. That's the best month for landing an awesome deal on Seoul to Chiang Mai International Airport tickets. If you have flexibility with your dates, use the 'Whole month' tool to find the lowest price across each month.

  • Stay on top of deals for plane tickets from Seoul to CNX by setting up a Price Alert. We'll send you an email or notification through the app when a lower fare pops up.

  • Tailor your trip using filters. Select your ideal arrival and departure times, total journey duration and airlines. You can also sort the results by 'Best,' 'Fastest' or 'Cheapest' flights from Seoul to Chiang Mai International Airport.

The best time to fly from Seoul to Chiang Mai International Airport (CNX)

  • It's time to work out your travel dates for your flight from Seoul to Chiang Mai International Airport (CNX). February is when most people travel to Chiang Mai. If crowds aren't your thing, head there in May.

  • The warmest month in Chiang Mai is April, with temperatures ranging between 22ºC (72ºF) and 42ºC (108ºF). Book your Seoul to CNX plane ticket then if that's your definition of good weather.

  • If you like cooler conditions, search for a cheap ticket from Seoul to Chiang Mai International Airport in January when temperatures are between 12ºC (54ºF) and 31ºC (88ºF).

More about Chiang Mai

  • After booking your flight from Seoul to Chiang Mai International Airport, find a hotel that puts you in a great location. Make one of these accommodation options your base for exploring Chiang Mai:

  • Your Chiang Mai visit should come with a side of sightseeing. Highlights you can't miss include Songkran Festival Chiang Mai, Doi Suthep and Elephant Conservation Park.

Explore more of Thailand

  • You've done Chiang Mai, now it's time to explore other corners of Thailand. Travel around 257 kilometres southeast to Phitsanulok to check off its leading attractions. From Wat Phra Si Rattana Mahathat to Phra Si Ratana Temple (Wat Yai) and Wat Ratcha Burada Temple, you'll have a packed itinerary ahead.

  • If you're ready to explore another well-known destination in Thailand, consider Chiang Rai, about 153 kilometres northeast of Chiang Mai. Wat Rong Khun, Wat Phra Kaew and Wat Huay Pla Kang: Goddess of Mercy Chiang Rai are highlights.

Plan the rest of your trip from Seoul to Chiang Mai

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.