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£102 Cheap Flights from Seoul (ICN) to Chiang Mai (CNX)

View £102 flight on Sun, 20 Sept 2026Opens in a new window

Popular airlines from Incheon Intl. Airport (ICN) to Chiang Mai Intl. Airport (CNX)

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Cheap Flights from Seoul (ICN) to Chiang Mai (CNX)

Prices were available within the past 7 days and start at £102 for one-way flights and £215 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hahn Air Systems
Sat, 12 Sept - Sat, 19 Sept
ICN
Seoul
CNX
Chiang Mai
£215 Return, found 5 days ago
£215
Return
found 5 days ago
Select Hahn Air Systems flight, departing Sat, 12 Sept from Seoul to Chiang Mai, returning Sat, 19 Sept, priced at £215 found 5 days ago
Hahn Air Systems
Wed, 30 Sept - Sat, 3 Oct
ICN
Seoul
CNX
Chiang Mai
£216 Return, found 6 days ago
£216
Return
found 6 days ago
Select Hahn Air Systems flight, departing Wed, 30 Sept from Seoul to Chiang Mai, returning Sat, 3 Oct, priced at £216 found 6 days ago
Hahn Air Systems
Thu, 10 Sept - Sun, 13 Sept
ICN
Seoul
CNX
Chiang Mai
£217 Return, found 3 days ago
£217
Return
found 3 days ago
Select Hahn Air Systems flight, departing Thu, 10 Sept from Seoul to Chiang Mai, returning Sun, 13 Sept, priced at £217 found 3 days ago
Hahn Air Systems
Sat, 26 Sept - Wed, 30 Sept
ICN
Seoul
CNX
Chiang Mai
£218 Return, found 22 hours ago
£218
Return
found 22 hours ago
Select Hahn Air Systems flight, departing Sat, 26 Sept from Seoul to Chiang Mai, returning Wed, 30 Sept, priced at £218 found 22 hours ago
Hahn Air Systems
Wed, 26 Aug - Wed, 2 Sept
ICN
Seoul
CNX
Chiang Mai
£228 Return, found 4 hours ago
£228
Return
found 4 hours ago
Select Hahn Air Systems flight, departing Wed, 26 Aug from Seoul to Chiang Mai, returning Wed, 2 Sept, priced at £228 found 4 hours ago
Hahn Air Systems
Fri, 7 Aug - Wed, 12 Aug
ICN
Seoul
CNX
Chiang Mai
£236 Return, found 6 days ago
£236
Return
found 6 days ago
Select Hahn Air Systems flight, departing Fri, 7 Aug from Seoul to Chiang Mai, returning Wed, 12 Aug, priced at £236 found 6 days ago
China Eastern Airlines
Sat, 12 Sept - Sat, 19 Sept
ICN
Seoul
CNX
Chiang Mai
£269 Return, found 5 days ago
£269
Return
found 5 days ago
Select China Eastern Airlines flight, departing Sat, 12 Sept from Seoul to Chiang Mai, returning Sat, 19 Sept, priced at £269 found 5 days ago
Malaysia Airlines
Tue, 16 Feb - Sun, 21 Feb
ICN
Seoul
CNX
Chiang Mai
£298 Return, found 5 days ago
£298
Return
found 5 days ago
Select Malaysia Airlines flight, departing Tue, 16 Feb from Seoul to Chiang Mai, returning Sun, 21 Feb, priced at £298 found 5 days ago
HK Express
Wed, 26 Aug - Wed, 2 Sept
ICN
Seoul
CNX
Chiang Mai
£335 Return, found 4 hours ago
£335
Return
found 4 hours ago
Select HK Express flight, departing Wed, 26 Aug from Seoul to Chiang Mai, returning Wed, 2 Sept, priced at £335 found 4 hours ago
EVA Airways
Sat, 5 Sept - Sat, 12 Sept
ICN
Seoul
CNX
Chiang Mai
£361 Return, found 2 days ago
£361
Return
found 2 days ago
Select EVA Airways flight, departing Sat, 5 Sept from Seoul to Chiang Mai, returning Sat, 12 Sept, priced at £361 found 2 days ago

Alternative airports near Chiang Mai

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Chiang Mai Intl. CNX. Cheapest and Closest option available. Average driving time to city centre is 10 minutes. Flights from £325
CNX
Chiang Mai Intl.
CheapestClosest
Average driving time to city centre10 min
Flights from £325

Frequently asked questions

How much does a flight from Seoul (ICN) to Chiang Mai (CNX) cost?
You can find one-way and return flights from Seoul (ICN) to Chiang Mai (CNX) with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when ICN to CNX ticket fares go up or down.
What is the cheapest month to fly from Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.)?
March is typically the cheapest month to fly from Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.), with average return fares around £212. March often sees lower prices as it falls outside of peak holiday seasons, making it a great time to find deals. Other cheap months to fly from Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) include February and April.
Which airlines fly direct from Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.)?
There are 4 airlines offering direct flights from Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.). Here are the carriers:
  • Jin Air operates 7 direct flights from Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) every week.
  • Jeju Air with Bag operates 7 direct flights from Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) every week.
  • Jeju Air operates 7 direct flights from Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) every week.
  • Eastar Jet operates 7 direct flights from Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) every week.
How do I find cheap flights from Seoul (ICN) to Chiang Mai (CNX)?
To find a cheap flight from Seoul (ICN) to Chiang Mai (CNX), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.)?
The cheapest months to fly from Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) are typically March and April, with average return flights around £212. However, the most popular months for this route are November and January, meaning you'll find plenty of flight options during these times. If you're looking for the best balance of good prices and a wide selection of flights, you might consider travelling in the shoulder seasons around these popular times.
What is the earliest flight from Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.)?
The earliest flight from Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) typically departs around 12:10 AM local time. This flight is operated by Malaysia Airlines and runs year-round, with service active in January, February, April, May, June, July, August, September, October, November, and December. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.)?
A direct flight from Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) typically takes around 5 hours 48 minutes. This journey covers a distance of approximately 3,381 kilometers. If you opt for a flight with one stop, your travel time will be significantly longer, usually around 20 hours 18 minutes. Flights with two or more stops generally take about 19 hours 18 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some flexibility in your travel plans.
Can you fly business or first class from Seoul (ICN) to Chiang Mai (CNX)?
Select the "Business class" and "First class" filters when looking for Seoul (ICN) to Chiang Mai (CNX) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) flight with Expedia?
It's easy to earn miles on a Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Chiang Mai (CNX) from Seoul (ICN)?
If you're planning to travel to Chiang Mai from Incheon Intl. (ICN), you can fly directly into Chiang Mai Intl. (CNX). Some flights may connect through major hubs like Hong Kong Intl. (HKG), Pudong Intl. (PVG), or Taoyuan Intl. (TPE) before reaching Chiang Mai. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) at the last minute?
Typically, booking a last minute flight from Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) flight and hotel package?
Securing a Seoul (ICN-Incheon Intl.) to Chiang Mai (CNX-Chiang Mai Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seoul (ICN) to Chiang Mai (CNX)?
If you booked your Seoul (ICN) to Chiang Mai (CNX) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Incheon Intl.
Destination airport
Chiang Mai Intl.
Airlines serving
Air China, China Airlines, China Eastern Airlines, EVA Airways, HK Express, Hahn Air Systems, Korean Air, Malaysia Airlines, Scoot, Thai Airways International
Return price
£214
Distance
3360 km
Average flight time
3 hours 50 mins

Book with confidence

Compare flights from Seoul to Chiang Mai easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Seoul to Chiang Mai. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Chiang Mai Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Incheon Intl. to Chiang Mai Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Incheon Intl. (ICN) to Chiang Mai Intl. (CNX)

The easiest way to view the best deals on flights from Seoul to Chiang Mai today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Incheon Intl. to Chiang Mai Intl. start at just £215 and range up to £361.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Seoul and Chiang Mai
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Seoul to Chiang Mai flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Incheon Intl. to Chiang Mai Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Seoul to Chiang Mai easily and book with confidence

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*Available to Expedia members.