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Cheap flights from Chiang Mai to Seoul from ฿1,503

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — SEL
9 Nis — 16 Nis1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Chiang Mai to Seoul

Enter your travel dates to find the best prices.

Cheapest flights from Chiang Mai to Seoul
Explore the most affordable flight options available from Chiang Mai to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 Mart 2026.

Sal 9/623:30
CNX
-
ICN
1 stop9h 05m
Thai AirAsia
Sal 23/612:05
ICN
-
CNX
1 stop8h 35m
Thai AirAsia
Deal found 9/3฿2,687
Sal 30/620:00
CNX
-
ICN
1 stop12h 35m
Thai AirAsia
Sal 7/712:05
ICN
-
CNX
1 stop9h 20m
Thai AirAsia
Deal found 9/3฿2,878
Çar 24/623:30
CNX
-
ICN
1 stop9h 05m
Thai AirAsia
Cum 26/612:05
ICN
-
CNX
1 stop9h 20m
Thai AirAsia
Deal found 9/3฿2,942
Çar 22/423:30
CNX
-
ICN
1 stop9h 05m
Multiple Airlines
Çar 10/612:05
ICN
-
CNX
1 stop10h 35m
Multiple Airlines
Deal found 9/3฿5,469
Çar 18/320:40
CNX
-
ICN
1 stop11h 25m
Multiple Airlines
Çar 25/317:55
ICN
-
CNX
1 stop22h 50m
Multiple Airlines
Deal found 5/3฿6,365
Per 18/600:50
CNX
-
ICN
Nonstop5h 25m
Multiple Airlines
Sal 23/612:05
ICN
-
CNX
1 stop8h 35m
Multiple Airlines
Deal found 10/3฿6,556
Pzt 16/322:10
CNX
-
ICN
1 stop16h 25m
Multiple Airlines
Cum 27/317:25
ICN
-
CNX
Nonstop5h 40m
Multiple Airlines
Deal found 5/3฿6,748
Per 19/319:00
CNX
-
ICN
1 stop13h 05m
Multiple Airlines
Cum 27/317:25
ICN
-
CNX
Nonstop5h 40m
Multiple Airlines
Deal found 5/3฿6,780
Çar 25/320:40
CNX
-
ICN
1 stop11h 25m
Multiple Airlines
Paz 14/619:55
ICN
-
CNX
Nonstop5h 55m
Multiple Airlines
Deal found 6/3฿6,812
Pzt 16/322:10
CNX
-
ICN
1 stop16h 25m
Multiple Airlines
Per 26/317:25
ICN
-
CNX
Nonstop5h 40m
Multiple Airlines
Deal found 5/3฿6,844
Çar 18/323:05
CNX
-
GMP
1 stop7h 40m
Multiple Airlines
Sal 24/315:20
GMP
-
CNX
1 stop8h 40m
Multiple Airlines
Deal found 5/3฿9,371
Sal 17/323:05
CNX
-
GMP
1 stop7h 40m
Multiple Airlines
Sal 24/315:20
GMP
-
CNX
1 stop8h 40m
Multiple Airlines
Deal found 5/3฿9,435

Find flight deals from Chiang Mai to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Chiang Mai (CNX) to Seoul (SEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 10 Mart 2026.

Round-trip from

฿5,469

One-way from

฿1,503

Popular in

October

Cheapest in

September

Average price

฿9,915

Good round-trip deal

฿8,670 or less

Good one-way deal

฿4,964 or less
Thai AirAsia
  • Thai AirAsia
  • 22/4-10/6
  • 2 total stops
  • 19h 40m total
  • Chiang Mai to Seoul
Search Deals
Thai AirAsia
  • Thai AirAsia
  • 8/6
  • 1 total stop
  • 9h 05m total
  • Chiang Mai to Seoul
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (฿18,522 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (฿11,958 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Chiang Mai to Seoul (SEL).
Search Deals
Price to beat on a one-way flight from Chiang Mai to Seoul (SEL).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Chiang Mai to Seoul that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 10 Mart 2026.
Use the filters below to find and compare flights from Chiang Mai to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Çar 22/4

23:30-10:35

1 stop9h 05m

Incheon Intl

Paz 14/6

12:05-19:25

1 stop9h 20m

฿5,469

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Çar 22/4

23:30-10:35

1 stop9h 05m

Incheon Intl

Çar 10/6

12:05-20:40

1 stop10h 35m

฿5,469

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Cmt 2/5

23:00-06:30

Nonstop5h 30m

Incheon Intl

Çar 6/5

18:10-22:00

Nonstop5h 50m

฿9,595

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Çar 22/4

23:55-07:10

Nonstop5h 15m

Incheon Intl

Cmt 25/4

18:30-22:40

Nonstop6h 10m

฿10,203

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Paz 14/6

16:10-22:45

1 stop28h 35m

Incheon Intl

Sal 16/6

13:10-09:15

2 stops22h 05m

฿11,930

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Çar 22/4

10:05-17:25

3 stops29h 20m

Incheon Intl

Paz 14/6

07:45-09:15

3 stops27h 30m

฿12,217

Chiang MaiSeoul

CNX - GMP

CNXGMP

Chiang Mai

Per 25/6

23:05-13:05

1 stop12h 00m

Seoul Gimpo Intl

Cmt 27/6

14:25-21:50

1 stop9h 25m

฿13,369

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Cum 8/5

16:10-13:15

3 stops19h 05m

Incheon Intl

Pzt 11/5

06:50-15:20

3 stops34h 30m

฿14,040

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Per 2/7

16:10-10:55

2 stops16h 45m

Incheon Intl

Sal 7/7

16:35-09:15

2 stops18h 40m

฿14,104

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Paz 28/6

16:10-22:45

1 stop28h 35m

Incheon Intl

Paz 12/7

13:10-09:15

2 stops22h 05m

฿14,136

Flights are sorted by cheapest return flights first.

Deals found on 8/3

Showing 1-10 of 41 resultsSorted by cheapest first
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Best time to book a flight from Chiang Mai to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Chiang Mai with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chiang Mai to Seoul

What is the cheapest month to book a flight from Chiang Mai to Seoul?

Currently, April is the cheapest month in which you can book a flight from Chiang Mai to Seoul (average of ฿3,518). Flying from Chiang Mai to Seoul in February is currently the most expensive (average of ฿15,064). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CNX to SEL?

Find hourly flight availability from Chiang Mai to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 10 Mart 2026.

When flying from Chiang Mai to Seoul, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Chiang Mai to Seoul

Explore weekly flight availability from Chiang Mai to Seoul. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 10 Mart 2026.

The most flights from CNX to SEL are scheduled on a Monday (4 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

How much does it cost for a return flight from Chiang Mai to Seoul?

Related info for your journey

Find useful and relevant information for your journey from Chiang Mai to Seoul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Chiang Mai to Seoul?

    Chiang Mai (CNX) is the airport you will fly out of if you book a flight from Chiang Mai to Seoul. You should not have trouble finding flights to Seoul from Chiang Mai; the airport handles an average of 3 outbound flights to Seoul per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Chiang Mai airport to Seoul. It is only a 3.1 km journey to Chiang Mai (CNX) from Chiang Mai’s city centre.

  • How long is the flight from Chiang Mai to Seoul?

    There are many flights that can get you from Chiang Mai to Seoul in 5h 15m. Fly via Jeju Air, Eastar Jet, or China Eastern to get the fastest option. Airlines will cover a distance of 3378 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from Chiang Mai to Seoul round-trip?

    Currently priced at ฿5,609, Eastar Jet will fly you from Chiang Mai to Seoul and back. In addition to Eastar Jet, many other airlines offer competitively priced options for your trip. Eastar Jet is currently priced 55% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Chiang Mai to Seoul?

    The top 3 most reliable airlines when flying from Chiang Mai to Seoul are เดลต้า (83%), Jeju Air (83%) and T'way Air (82%).

  • What are the cheapest flights from Chiang Mai to Seoul?

    Looking for the cheapest flight from Chiang Mai to Seoul? While on average our users pay ฿10,240, our data indicates the cheapest price to be ฿4,964. The most popular route (Chiang Mai - Incheon Intl), is priced around ฿6,748.

  • Can I find deals for flights from Chiang Mai to Seoul that include hotel bookings?

    Yes. In addition to deals on Chiang Mai to Seoul flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Chiang Mai to Seoul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Mai to Seoul.

  • Can I find deals for business class flights from Chiang Mai to Seoul?

    Yes. Cheapflights offers flight deals from Chiang Mai to Seoul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chiang Mai to Seoul?

    Currently, April is the cheapest month in which you can book a flight from Chiang Mai to Seoul (average of ฿3,518). Flying from Chiang Mai to Seoul in February is currently the most expensive (average of ฿15,064). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chiang Mai to Seoul

See prices for flight routes from nearby airports that may be better suited for you.
Chiang Mai to Incheon Intl flights
Phuket City to Incheon Intl flights
Chiang Mai to Busan flights

Top airline flying from Chiang Mai to Seoul

Discover the top airline that operate flights from Chiang Mai to Seoul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 10 Mart 2026.
AirlineCheapestAverageFlexibilityOn-time
Eastar JetCheapest฿5,609Average฿11,721FlexibilityNo cancel feeOn-time86%
Search Eastar Jet flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Chiang Mai to Seoul?

Cheapflights makes it easy to find Chiang Mai to Seoul flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Chiang Mai to Seoul?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Chiang Mai to Seoul.

Can Cheapflights find flights from Chiang Mai to Seoul with no change fees?

Yes! Cheapflights helps users easily find flights from Chiang Mai to Seoul with no change fees.

Can Cheapflights notify me if prices for flights from Chiang Mai to Seoul become cheaper?

Yes, Cheapflights offers price alerts on Chiang Mai to Seoul flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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