£186 Cheap Flights from Chiang Mai (CNX) to Seoul (ICN)

View £186 flight on Sat, 28 Nov 2026Opens in a new window

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 25% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at £186 for one-way flights and £283 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Eastern Airlines
Fri, 15 May - Mon, 18 May
CNX
Chiang Mai
ICN
Seoul
£283 Return, found 3 days ago
£283
Return
found 3 days ago
Select China Eastern Airlines flight, departing Fri, 15 May from Chiang Mai to Seoul, returning Mon, 18 May, priced at £283 found 3 days ago
China Eastern Airlines
Fri, 15 May - Tue, 19 May
CNX
Chiang Mai
ICN
Seoul
£307 Return, found 3 days ago
£307
Return
found 3 days ago
Select China Eastern Airlines flight, departing Fri, 15 May from Chiang Mai to Seoul, returning Tue, 19 May, priced at £307 found 3 days ago
China Eastern Airlines
Wed, 13 May - Wed, 20 May
CNX
Chiang Mai
ICN
Seoul
£312 Return, found 1 day ago
£312
Return
found 1 day ago
Select China Eastern Airlines flight, departing Wed, 13 May from Chiang Mai to Seoul, returning Wed, 20 May, priced at £312 found 1 day ago
Air China
Thu, 4 Jun - Thu, 11 Jun
CNX
Chiang Mai
ICN
Seoul
£333 Return, found 5 days ago
£333
Return
found 5 days ago
Select Air China flight, departing Thu, 4 Jun from Chiang Mai to Seoul, returning Thu, 11 Jun, priced at £333 found 5 days ago
China Eastern Airlines
Tue, 12 May - Sat, 16 May
CNX
Chiang Mai
ICN
Seoul
£337 Return, found 3 days ago
£337
Return
found 3 days ago
Select China Eastern Airlines flight, departing Tue, 12 May from Chiang Mai to Seoul, returning Sat, 16 May, priced at £337 found 3 days ago
Air China
Thu, 25 Jun - Thu, 9 Jul
CNX
Chiang Mai
ICN
Seoul
£341 Return, found 2 days ago
£341
Return
found 2 days ago
Select Air China flight, departing Thu, 25 Jun from Chiang Mai to Seoul, returning Thu, 9 Jul, priced at £341 found 2 days ago
China Eastern Airlines
Fri, 15 May - Mon, 18 May
CNX
Chiang Mai
ICN
Seoul
£343 Return, found 3 days ago
£343
Return
found 3 days ago
Select China Eastern Airlines flight, departing Fri, 15 May from Chiang Mai to Seoul, returning Mon, 18 May, priced at £343 found 3 days ago
China Southern Airlines
Mon, 11 May - Sun, 24 May
CNX
Chiang Mai
ICN
Seoul
£374 Return, found 1 day ago
£374
Return
found 1 day ago
Select China Southern Airlines flight, departing Mon, 11 May from Chiang Mai to Seoul, returning Sun, 24 May, priced at £374 found 1 day ago
Scoot
Sun, 10 May - Mon, 18 May
CNX
Chiang Mai
ICN
Seoul
£385 Return, found 5 days ago
£385
Return
found 5 days ago
Select Scoot flight, departing Sun, 10 May from Chiang Mai to Seoul, returning Mon, 18 May, priced at £385 found 5 days ago
Cathay Pacific
Wed, 24 Jun - Wed, 8 Jul
CNX
Chiang Mai
ICN
Seoul
£398 Return, found 2 days ago
£398
Return
found 2 days ago
Select Cathay Pacific flight, departing Wed, 24 Jun from Chiang Mai to Seoul, returning Wed, 8 Jul, priced at £398 found 2 days ago

Alternative airports near Seoul

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

Select flight to Incheon Intl. ICN. Cheapest option available. Average driving time to city centre is 47 minutes. Flights from £283
ICN
Incheon Intl.
Cheapest
Average driving time to city centre47 min
Flights from £283

Frequently asked questions

Which airlines fly direct from Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.)?
Enter CNX to ICN and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.)?
To find a cheap flight from Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.), 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 airline to fly with from Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.)?
The best airline to fly with from Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.) will differ from traveller to traveller. If you like to fly early, OZ offers early morning flights. If price is the most important factor, T1 typically offers the lowest fares. PG offers the most daily flights from Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.)?
There are approximately 2 nonstop flights per day from Chiang Mai Intl. (CNX) to Incheon Intl. (ICN). For even more choice, look at flights that include layovers, as there are around 47 connecting flights per day. Some common connection points include Suvarnabhumi Intl. (BKK), Changshui Intl. (KMG), and Pudong Intl. (PVG).
What is the earliest flight from Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.)?
The earliest flight from Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.) typically departs at approximately 12:15 AM local time, operated by Korean Air. This is a seasonal service active in November and December. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.)?
You'll find the most flights from Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.) on a Saturday, with around 32 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include PG, TG, and FD. Saturday offers notably more flight options compared to other days of the week.
What are the most popular departure times for flights from Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.)?
The most popular departure times for flights from Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.) are in the morning, between 9am and 12pm. About 23% of passengers prefer this time. This timing works well because it allows you to start your travel day without an extremely early wake-up, and you'll arrive in Seoul with plenty of time to settle in.
How long does it take to fly from Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.)?
Direct flights from CNX to ICN usually take about 4 hours 50 minutes, traveling roughly 2,101 miles. If you opt for a connecting flight, expect to add around 12 hours 10 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.)?
Select the "Business class" and "First class" filters when looking for CNX to ICN 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 Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.) flight with Expedia?
It's easy to earn miles on a Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon 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 Seoul from Chiang Mai Intl. (CNX)?
If you're planning to travel to Seoul from Chiang Mai Intl. (CNX), you can fly directly into Incheon Intl. (ICN) Some flights may connect through major hubs like Suvarnabhumi Intl. (BKK), Changshui Intl. (KMG), Changi (SIN) before reaching Seoul. 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 Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.) at the last minute?
Typically, booking a last minute flight from Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon 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 Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.) flight and hotel package?
Securing a Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon 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 Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.)?
If you booked your Chiang Mai (CNX-Chiang Mai Intl.) to Seoul (ICN-Incheon Intl.) 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
Chiang Mai Intl.
Destination airport
Incheon Intl.
Airlines serving
Cathay Pacific, China Airlines, China Eastern Airlines, China Southern Airlines, EVA Airways, Hahn Air Systems, Malaysia Airlines, Scoot, Thai Airways International
Return price
£283
Distance
3360 km
Average flight time
7 hours 23 mins

Book with confidence

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

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

The easiest way to view the best deals on flights from Chiang Mai to Seoul 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 Chiang Mai Intl. to Incheon Intl. start at just £283 and range up to £398.  

To find an even better deal, try  

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

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

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Chiang Mai Intl. to Incheon 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 Chiang Mai to Seoul easily and book with confidence

Explore a world of travel with Expedia

*Available to Expedia members.