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Chiang Mai

$101+ Cheap flights from Seoul (SEL) to Chiang Mai (CNX)

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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — CNX
mar. 11 — mar. 181
mié. 3/11
mié. 3/18
1 adult, Economy
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Cheapflights Tip: The best prices from Seoul to Chiang Mai are usually found in June or March, booked 75 days in advance, depart on a Wednesday or Saturday and return on a Sunday

Cheap flight deals from Seoul to Chiang Mai

Cheapest flights from Seoul to Chiang Mai
Explore the most affordable flight options available from Seoul to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 9, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/77:55 pm
ICN
-
CNX
Nonstop5h 55m
Air Busan
sáb. 5/912:50 am
CNX
-
ICN
Nonstop5h 25m
Air Busan
Deal found 2/6$209
This Kiwi.com deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/76:30 pm
ICN
-
CNX
Nonstop6h 10m
Multiple Airlines
dom. 5/173:40 pm
CNX
-
ICN
1 stop13h 20m
Multiple Airlines
Deal found 2/6$213
This AirAsia deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AirAsia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/1612:05 pm
ICN
-
CNX
1 stop8h 35m
Multiple Airlines
jue. 7/233:40 pm
CNX
-
ICN
1 stop13h 20m
Multiple Airlines
Deal found 2/9$215
This Eastar Jet deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Eastar Jet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 7/46:30 pm
ICN
-
CNX
Nonstop6h 10m
Eastar Jet
jue. 7/911:55 pm
CNX
-
ICN
Nonstop5h 15m
Eastar Jet
Deal found 2/7$219
This Jin Air deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jin Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/125:20 pm
ICN
-
CNX
Nonstop5h 25m
Jin Air
sáb. 10/179:45 pm
CNX
-
ICN
Nonstop5h 20m
Jin Air
Deal found 2/8$220
This Eastar Jet deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Eastar Jet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/16:30 pm
ICN
-
CNX
Nonstop6h 10m
Eastar Jet
jue. 7/911:55 pm
CNX
-
ICN
Nonstop5h 15m
Eastar Jet
Deal found 2/7$229
This Jin Air deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jin Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/145:20 pm
ICN
-
CNX
Nonstop5h 25m
Jin Air
dom. 10/189:45 pm
CNX
-
ICN
Nonstop5h 20m
Jin Air
Deal found 2/9$230
This Eastar Jet deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Eastar Jet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/175:25 pm
ICN
-
CNX
Nonstop5h 40m
Eastar Jet
mar. 3/2410:05 pm
CNX
-
ICN
Nonstop5h 25m
Eastar Jet
Deal found 2/8$232
This Booking.com deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/26:10 pm
ICN
-
CNX
Nonstop5h 50m
Jeju Air
dom. 4/1211:00 pm
CNX
-
ICN
Nonstop5h 30m
Jeju Air
Deal found 2/6$235
This Kiwi.com deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/412:05 pm
ICN
-
CNX
1 stop8h 35m
Multiple Airlines
dom. 6/143:40 pm
CNX
-
ICN
1 stop13h 20m
Multiple Airlines
Deal found 2/6$237
This Kiwi.com deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/47:10 pm
ICN
-
CNX
Nonstop6h 35m
Jeju Air
sáb. 3/712:45 am
CNX
-
ICN
Nonstop4h 45m
Jeju Air
Deal found 2/9$239
This Eastar Jet deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Eastar Jet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 2/285:25 pm
ICN
-
CNX
Nonstop5h 40m
Eastar Jet
jue. 3/1210:05 pm
CNX
-
ICN
Nonstop5h 25m
Eastar Jet
Deal found 2/8$240

Find flight deals from Seoul to Chiang Mai

Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to Chiang Mai (CNX). 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 febrero 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$209
(Kiwi.com)

One-way from

$101
(Kiwi.com)

Popular in

October

Cheapest in

June

Average price

$267

Good round-trip deal

$295 or less

Good one-way deal

$97 or less
Provider with most accurate pricing for Seoul (SEL)-Chiang Mai flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seoul (SEL)-Chiang Mai flights.
Search Deals
From Seoul (SEL) to Chiang Mai
Search Deals
One-way flight from Seoul (SEL) to Chiang Mai
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Seoul (SEL) to Chiang Mai.
Search Deals
Price to beat on a one-way flight from Seoul (SEL) to Chiang Mai.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seoul to Chiang Mai 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 2,558,603 searches. Data last updated febrero 9, 2026.
Use the filters below to find and compare flights from Seoul to Chiang Mai that are best for you.

Fly from

Seoul

Fly to

Chiang Mai

Route

Depart

Return

Price

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

mar. 3/17

5:25 pm-9:05 pm

Nonstop5h 40m

Chiang Mai

mar. 3/24

10:05 pm-5:30 am

Nonstop5h 25m

$232

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

mié. 3/11

5:25 pm-9:05 pm

Nonstop5h 40m

Chiang Mai

mar. 3/17

10:05 pm-5:30 am

Nonstop5h 25m

$232

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

jue. 6/11

12:05 pm-7:25 pm

1 stop9h 20m

Chiang Mai

dom. 6/14

11:30 pm-10:05 am

1 stop8h 35m

$243

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

sáb. 4/18

6:10 pm-10:00 pm

Nonstop5h 50m

Chiang Mai

mié. 4/22

11:00 pm-6:30 am

Nonstop5h 30m

$243

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

jue. 5/28

11:20 am-6:40 pm

1 stop9h 20m

Chiang Mai

mar. 6/2

11:30 pm-10:35 am

1 stop9h 05m

$244

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

lun. 6/22

12:05 pm-8:40 pm

1 stop10h 35m

Chiang Mai

sáb. 7/4

11:30 pm-10:05 am

1 stop8h 35m

$244

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

mar. 3/3

5:25 pm-9:05 pm

Nonstop5h 40m

Chiang Mai

lun. 3/16

10:05 pm-5:30 am

Nonstop5h 25m

$246

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

sáb. 2/21

7:10 pm-11:45 pm

Nonstop6h 35m

Chiang Mai

lun. 2/23

12:45 am-7:30 am

Nonstop4h 45m

$259

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

lun. 3/16

5:25 pm-9:05 pm

Nonstop5h 40m

Chiang Mai

vie. 3/20

10:05 pm-5:30 am

Nonstop5h 25m

$259

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

sáb. 3/21

7:10 pm-11:45 pm

Nonstop6h 35m

Chiang Mai

sáb. 4/4

11:00 pm-6:30 am

Nonstop5h 30m

$260

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/7

Showing 1-10 of 42 results
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2
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  • Most accurate provider: When it comes to deals on Seoul-Chiang Mai flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seoul-Chiang Mai flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seoul-Chiang Mai flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seoul-Chiang Mai flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seoul-Chiang Mai flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seoul to Chiang Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from Seoul with our price prediction graph.
Estimated round-trip 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 Seoul to Chiang Mai

How far ahead should I book a flight from Seoul to Chiang Mai?

Use this chart to determine the optimal time to book a round-trip flight from Seoul to Chiang Mai. Price data was last updated on February 6, 2026.

Booking 75 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seoul to Chiang Mai. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, June is the cheapest month in which you can book a flight from Seoul to Chiang Mai (average of $141). Flying from Seoul to Chiang Mai in January is currently the most expensive (average of $240). 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 SEL to CNX?

Find hourly flight availability from Seoul to Chiang Mai. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated febrero 9, 2026.

A simple way to save on the total cost of your ticket is to fly from Seoul to Chiang Mai in the afternoon. If you’re flexible enough to do this you can expect to save up to 48% on your trip compared to booking a flight at noon.

Weekly flight availability from Seoul to Chiang Mai

Explore weekly flight availability from Seoul to Chiang Mai. 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 febrero 9, 2026.

The most flights from SEL to CNX are scheduled on a Monday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 on average).

Reviews of airlines servicing Chiang Mai

Get insights into the airlines that provide service to Chiang Mai. 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 Chiang Mai. Reviews last updated febrero 9, 2026.
Read through reviews of airlines operating flights from Seoul to Chiang Mai, such as Jin Air, Korean Air, and Asiana Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Jin Air
8.6
Very good
22 reviews

Entertainment

7.5

Crew

9.1

Overall

8.6

Food

7.7

Comfort

8.0

Boarding

8.9
Jin Air
8.6
Very good
22 reviews
Jin Air
8.6
Very good
22 reviews

Entertainment

7.5

Crew

9.1

Overall

8.6

Food

7.7

Comfort

8.0

Boarding

8.9
Korean Air
8.4
Very good
1,189 reviews
Jin Air
8.6
Very good
22 reviews

Entertainment

7.5

Crew

9.1

Overall

8.6

Food

7.7

Comfort

8.0

Boarding

8.9
Asiana Airlines
8.1
Very good
505 reviews
Jin Air
8.6
Very good
22 reviews

Entertainment

7.5

Crew

9.1

Overall

8.6

Food

7.7

Comfort

8.0

Boarding

8.9
Jeju Air
7.6
Good
36 reviews
Jin Air
8.6
Very good
22 reviews

Entertainment

7.5

Crew

9.1

Overall

8.6

Food

7.7

Comfort

8.0

Boarding

8.9

Related info for your journey

Find useful and relevant information for your journey from Seoul to Chiang Mai. 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 into for flights to Chiang Mai from Seoul?

    Chiang Mai (CNX), located 1.9 mi from the city center, is the airport you fly into when you book flights from Seoul to Chiang Mai. 5 airlines have flights to Chiang Mai from Seoul on a regular basis. Booking flights from Seoul to Chiang Mai should not be difficult; the airport handles an average of 6 inbound flights from Seoul per day.

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

    Eastar Jet, Jeju Air, and Air China can get you from Seoul to Chiang Mai in just under 5h 40m. Your travel time can differ by up to 3h 45m. There are 2099 mi between Seoul and Chiang Mai. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Seoul to Chiang Mai round-trip?

    Currently priced at $112, Jeju Air will fly you from Seoul to Chiang Mai and back. In addition to Jeju Air, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Jin Air and Eastar Jet - these airlines can fly you to your destination from $186 and $222, respectively. You may be able to fly from Seoul to Chiang Mai for 61% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Seoul to Chiang Mai one-way?

    For one-way options, check prices for Jeju Air. According to our data, you can fly for as low as $79. Users have also found prices from $84 and $115 on Jin Air and Eastar Jet, respectively.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seoul to Chiang Mai on time: Jeju Air (89%), Delta (83%), Korean Air (73%).

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

    While on average a flight from Seoul to Chiang Mai is generally $830, our data shows the cheapest flight currently is $85. When looking at the most popular route, (Seoul Gimpo Intl - Chiang Mai), you can expect to pay $381 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seoul to Chiang Mai 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 Seoul to Chiang Mai?

    Currently, June is the cheapest month in which you can book a flight from Seoul to Chiang Mai (average of $141). Flying from Seoul to Chiang Mai in January is currently the most expensive (average of $240). 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 Seoul to Chiang Mai

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

Top 5 airlines flying from Seoul to Chiang Mai

Discover the top 5 airlines that operate flights from Seoul to Chiang Mai. 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 2,558,603 searches. Data last updated febrero 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
Jeju AirCheapest$112Average$314FlexibilityNo cancel feeOn-timeN/A
Jin AirCheapest$186Average$357FlexibilityNo cancel feeOn-time78%
Eastar JetCheapest$222Average$339FlexibilityNo cancel feeOn-time86%
Korean AirCheapest$319Average$504FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$330Average$409FlexibilityNo cancel feeOn-time76%

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