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Cheap flights from Chiang Mai to South Korea from ฿3,715

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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — ICN
25 Nov — 2 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Chiang Mai to South Korea

Keep the following information in mind while searching for Chiang Mai to South Korea flight deals. Data was last updated 26 October 2025.

Round-trip from

฿7,821

One-way from

฿3,715

Popular in

August

Cheapest in

September

Average price

฿14,665

Good round-trip deal

฿12,432 or less

Good one-way deal

฿5,058 or less
25/11-29/11
  • 25/11-29/11
  • 2 total stops
  • 21h 15m total
  • Chiang Mai to South Korea
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Thai Vietjet Air
  • Thai Vietjet Air
  • 4/11
  • 1 total stop
  • 9h 30m total
  • Chiang Mai to South Korea
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (฿20,044 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (฿11,665 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Chiang Mai to South Korea.
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Price to beat on a one-way flight from Chiang Mai to South Korea.
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Find flight deals from Chiang Mai to South Korea

Enter your travel dates to find the best prices.

Cheapest flights from Chiang Mai to South Korea
Explore the most affordable flight options available from Chiang Mai to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 October 2025.

Mon 27/1021:40CNX - ICN
Nonstop5h 05mJin Air
Fri 31/1016:15ICN - CNX
Nonstop6h 15mJin Air
Deal found 26/10฿7,235
Sun 26/1000:45CNX - ICN
Nonstop4h 45mMultiple Airlines
Fri 31/1016:15ICN - CNX
Nonstop6h 15mMultiple Airlines
Deal found 26/10฿7,495
Sat 1/1120:50CNX - ICN
1 stop11h 05mMultiple Airlines
Sun 2/1116:15ICN - CNX
Nonstop6h 15mMultiple Airlines
Deal found 26/10฿7,561
Mon 3/1119:55CNX - ICN
1 stop12h 00mMultiple Airlines
Sat 8/1113:10ICN - CNX
1 stop10h 40mMultiple Airlines
Deal found 26/10฿7,756
Tue 25/1122:50CNX - ICN
1 stop9h 05mMultiple Airlines
Sat 29/1112:10ICN - CNX
1 stop12h 10mMultiple Airlines
Deal found 26/10฿7,821
Sat 1/1121:40CNX - ICN
Nonstop5h 05mJin Air
Sun 2/1116:15ICN - CNX
Nonstop6h 15mJin Air
Deal found 26/10฿8,082
Sun 26/1021:50CNX - ICN
Nonstop5h 40mEastar Jet
Thu 30/1017:25ICN - CNX
Nonstop5h 25mEastar Jet
Deal found 25/10฿8,115
Tue 4/1122:25CNX - ICN
1 stop9h 30mMultiple Airlines
Mon 10/1113:10ICN - CNX
1 stop10h 40mMultiple Airlines
Deal found 25/10฿8,212
Thu 30/1022:05CNX - ICN
Nonstop4h 50mMultiple Airlines
Fri 7/1113:10ICN - CNX
1 stop10h 40mMultiple Airlines
Deal found 25/10฿8,277
Sun 26/1021:40CNX - ICN
Nonstop5h 05mMultiple Airlines
Thu 30/1017:25ICN - CNX
Nonstop5h 25mMultiple Airlines
Deal found 25/10฿8,343
Sat 1/1121:40CNX - ICN
Nonstop5h 05mMultiple Airlines
Wed 5/1113:10ICN - CNX
1 stop29h 45mMultiple Airlines
Deal found 25/10฿8,375
Sun 9/1123:05CNX - PUS
Nonstop5h 00mMultiple Airlines
Tue 25/1119:40PUS - CNX
1 stop25h 25mMultiple Airlines
Deal found 24/10฿9,679

Cheapflights Fare Finder

 
Customise your flight search to find flights from Chiang Mai to South Korea 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 26 October 2025.
Use the filters below to find and compare flights from Chiang Mai to South Korea that are best for you.

Fly from

Chiang Mai

Fly to

South Korea

Route

Depart

Return

Price

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Tue 25/11

15:45-09:55

1 stop16h 10m

Incheon Intl

Sat 29/11

12:10-20:25

1 stop10h 15m

฿9,060

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Sat 22/11

22:25-09:55

1 stop9h 30m

Incheon Intl

Sat 29/11

12:10-21:55

1 stop11h 45m

฿9,320

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Mon 1/12

18:50-13:50

1 stop17h 00m

Incheon Intl

Fri 5/12

13:10-21:50

1 stop10h 40m

฿9,614

Chiang MaiBusan

CNX - PUS

CNXPUS

Chiang Mai

Sun 9/11

23:05-06:05

Nonstop5h 00m

Busan Gimhae

Tue 25/11

19:40-19:05

1 stop25h 25m

฿9,679

Chiang MaiBusan

CNX - PUS

CNXPUS

Chiang Mai

Sun 9/11

23:05-06:05

Nonstop5h 00m

Busan Gimhae

Tue 25/11

18:15-22:00

Nonstop5h 45m

฿9,939

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Thu 22/1

01:35-00:45

1 stop21h 10m

Incheon Intl

Tue 27/1

16:40-09:05

2 stops18h 25m

฿10,461

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Wed 24/12

18:50-15:15

1 stop18h 25m

Incheon Intl

Sun 28/12

16:25-20:25

Nonstop6h 00m

฿10,982

Chiang MaiBusan

CNX - PUS

CNXPUS

Chiang Mai

Thu 12/3

23:05-06:05

Nonstop5h 00m

Busan Gimhae

Mon 16/3

18:15-22:00

Nonstop5h 45m

฿11,048

Chiang MaiSeoul

CNX - GMP

CNXGMP

Chiang Mai

Sat 6/12

23:05-13:05

1 stop12h 00m

Seoul Gimpo Intl

Sat 13/12

14:25-21:50

1 stop9h 25m

฿11,210

Chiang MaiSeoul

CNX - GMP

CNXGMP

Chiang Mai

Sat 22/11

23:05-13:05

1 stop12h 00m

Seoul Gimpo Intl

Sat 29/11

14:25-21:50

1 stop9h 25m

฿11,210

Flights are sorted by cheapest return flights first.

Deals found on 25/10

Showing 1-10 of 45 results
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Best time to book a flight from Chiang Mai to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea 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 South Korea

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

Currently, February is the cheapest month in which you can book a flight from Chiang Mai to South Korea (average of ฿4,399). Flying from Chiang Mai to South Korea in January is currently the most expensive (average of ฿11,048). 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 KR?

Find hourly flight availability from Chiang Mai to South Korea. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 October 2025.

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

Reviews of airlines servicing South Korea

Get insights into the airlines that provide service to South Korea. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Korea. Reviews last updated 26 October 2025.
Read reviews from past customers who have flown with Korean Air and Jeju Air from Chiang Mai to South Korea. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,153 reviews
Check prices

Crew

8.7

Overall

8.4

Boarding

8.5

Food

8.1

Entertainment

8.2

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,153 reviews
Korean Air
8.4
Very Good
1,153 reviews
Check prices

Crew

8.7

Overall

8.4

Boarding

8.5

Food

8.1

Entertainment

8.2

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Jeju Air
7.7
Good
34 reviews
Korean Air
8.4
Very Good
1,153 reviews
Check prices

Crew

8.7

Overall

8.4

Boarding

8.5

Food

8.1

Entertainment

8.2

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Chiang Mai to South Korea. 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 South Korea?

    If you book a flight to South Korea from Chiang Mai, you will be flying from Chiang Mai, which is the city’s only airport. Chiang Mai (CNX) is located 3.1 km from the centre of Chiang Mai.

  • How popular is this Chiang Mai to South Korea flight route?

    Within the past month, 89 users have taken a look at flights from Chiang Mai to South Korea.

  • How long is the flight from Chiang Mai to South Korea?

    For as low as ฿9,939, Thai Vietjet Air can have you in South Korea from Chiang Mai in 5h. The distance between Chiang Mai and South Korea is about 3462 km. This flight may include one or multiple stops.

  • What are the most popular routes from Chiang Mai to South Korea?

    The most popular flight routes from Chiang Mai to South Korea are Chiang Mai - Incheon Intl, Chiang Mai - Seoul Gimpo Intl and Chiang Mai - Busan Gimhae.

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

    No one likes to see their flight delayed. When booking a flight from Chiang Mai to South Korea consider choosing เดลต้า(87%), Jeju Air(85%) or Thai Airways(82%), as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Chiang Mai to South Korea?

    While on average a flight from Chiang Mai to South Korea is generally ฿14,011, our data shows the cheapest flight currently is ฿5,058. When looking at the most popular route, (Chiang Mai - Incheon Intl), you can expect to pay ฿6,909 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Chiang Mai to South Korea 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 South Korea?

    Currently, February is the cheapest month in which you can book a flight from Chiang Mai to South Korea (average of ฿4,399). Flying from Chiang Mai to South Korea in January is currently the most expensive (average of ฿11,048). 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

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Alternative routes for Chiang Mai to South Korea

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

Top 2 airlines flying from Chiang Mai to South Korea

Discover the top 2 airlines that operate flights from Chiang Mai to South Korea. 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 26 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Jeju AirCheapest฿9,844Average฿15,912FlexibilityNo cancel feeOn-timeN/A
Search Jeju Air flights
Korean AirCheapest฿16,990Average฿19,268FlexibilityNo cancel feeOn-time81%
Search Korean Air flights

Fly with Cheapflights

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

When you search for this flight from Chiang Mai to South Korea, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

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 South Korea.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Chiang Mai to South Korea flexibly with Cheapflights today.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to South Korea from Chiang Mai today and book when prices fit your budget.

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