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Chiang Mai

$100+ 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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — CNX
Nov 21 — Nov 281
Fri 11/21
Fri 11/28
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 45 days in advance, depart on a Monday or Saturday and return on a Thursday

Cheap 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 October 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$204
(Mytrip)

One-way from

$100
(Kiwi.com)

Popular in

January

Cheapest in

June

Average price

$373

Good round-trip deal

$270 or less

Good one-way deal

$131 or less
Provider with most accurate pricing for Seoul (SEL)-Chiang Mai flight deals.
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Provider most trusted by Cheapflights users for Seoul (SEL)-Chiang Mai flights.
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From Seoul (SEL) to Chiang Mai
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One-way flight from Seoul (SEL) to Chiang Mai
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($100 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT 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 Seoul (SEL) to Chiang Mai.
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Price to beat on a one-way flight from Seoul (SEL) to Chiang Mai.
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Find 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 October 22, 2025.

This Mytrip deal was found by Cheapflights users on 10/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:50 pmICN - CNX
1 stop30h 00mAir China
Fri 12/1211:05 pmCNX - ICN
1 stop20h 50mAir China
Deal found 10/21$204
This Mytrip deal was found by Cheapflights users on 10/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:50 pmICN - CNX
1 stop30h 00mAir China
Thu 12/1111:05 pmCNX - ICN
1 stop20h 50mAir China
Deal found 10/20$208
This oojo deal was found by Cheapflights users on 10/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/52:25 pmGMP - CNX
1 stop9h 25mAir China
Fri 12/1211:05 pmCNX - GMP
1 stop12h 00mAir China
Deal found 10/21$209
This oojo deal was found by Cheapflights users on 10/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/301:10 pmICN - CNX
1 stop10h 40mAir China
Mon 11/311:05 pmCNX - ICN
1 stop15h 30mAir China
Deal found 10/22$209
This oojo deal was found by Cheapflights users on 10/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/52:25 pmGMP - CNX
1 stop28h 30mAir China
Mon 11/1011:05 pmCNX - GMP
1 stop12h 00mAir China
Deal found 10/19$210
This Jin Air deal was found by Cheapflights users on 10/21. 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.
Sat 11/14:15 pmICN - CNX
Nonstop6h 15mJin Air
Sun 11/99:40 pmCNX - ICN
Nonstop5h 05mJin Air
Deal found 10/21$210
This Mytrip deal was found by Cheapflights users on 10/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/152:25 pmGMP - CNX
1 stop9h 25mAir China
Sun 11/2311:05 pmCNX - GMP
1 stop12h 00mAir China
Deal found 10/20$214
This SmartFares deal was found by Cheapflights users on 10/20. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/301:10 pmICN - CNX
1 stop10h 40mAir China
Tue 11/46:10 pmCNX - ICN
1 stop15h 30mAir China
Deal found 10/20$214
This Mytrip deal was found by Cheapflights users on 10/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/241:10 pmICN - CNX
1 stop10h 40mAir China
Sat 11/2911:05 pmCNX - ICN
1 stop12h 40mAir China
Deal found 10/20$216
This Mytrip deal was found by Cheapflights users on 10/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/101:10 pmICN - CNX
1 stop10h 40mAir China
Wed 11/1211:05 pmCNX - ICN
1 stop10h 35mAir China
Deal found 10/21$217
This Kiwi.com deal was found by Cheapflights users on 10/20. 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.
Sun 11/27:10 pmICN - CNX
Nonstop6h 35mMultiple Airlines
Wed 11/2610:10 pmCNX - ICN
1 stop9h 55mMultiple Airlines
Deal found 10/20$229
This Kiwi.com deal was found by Cheapflights users on 10/20. 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.
Sat 11/81:10 pmICN - CNX
1 stop10h 40mAir China
Tue 11/2511:05 pmCNX - ICN
1 stop10h 35mAir China
Deal found 10/20$231

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 October 22, 2025.
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

SeoulChiang Mai

GMP - CNX

GMPCNX

Seoul Gimpo Intl

Fri 12/19

2:25 pm-9:50 pm

1 stop9h 25m

Chiang Mai

Tue 12/23

11:05 pm-1:05 pm

1 stop12h 00m

$209

SeoulChiang Mai

GMP - CNX

GMPCNX

Seoul Gimpo Intl

Fri 12/12

2:25 pm-9:50 pm

1 stop9h 25m

Chiang Mai

Tue 12/16

11:05 pm-1:05 pm

1 stop12h 00m

$209

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Sat 11/1

4:15 pm-8:30 pm

Nonstop6h 15m

Chiang Mai

Sun 11/9

9:40 pm-4:45 am

Nonstop5h 05m

$210

SeoulChiang Mai

GMP - CNX

GMPCNX

Seoul Gimpo Intl

Wed 11/5

2:25 pm-4:55 pm

1 stop28h 30m

Chiang Mai

Mon 11/10

11:05 pm-1:05 pm

1 stop12h 00m

$210

SeoulChiang Mai

GMP - CNX

GMPCNX

Seoul Gimpo Intl

Mon 11/24

2:25 pm-9:50 pm

1 stop9h 25m

Chiang Mai

Sat 11/29

11:05 pm-1:05 pm

1 stop12h 00m

$214

SeoulChiang Mai

GMP - CNX

GMPCNX

Seoul Gimpo Intl

Sat 11/15

2:25 pm-9:50 pm

1 stop9h 25m

Chiang Mai

Sun 11/23

11:05 pm-1:05 pm

1 stop12h 00m

$214

SeoulChiang Mai

GMP - CNX

GMPCNX

Seoul Gimpo Intl

Thu 12/4

2:25 pm-9:50 pm

1 stop9h 25m

Chiang Mai

Thu 12/11

11:05 pm-1:05 pm

1 stop12h 00m

$214

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Thu 1/22

11:20 am-7:55 pm

1 stop10h 35m

Chiang Mai

Thu 1/29

9:20 pm-10:05 am

1 stop10h 45m

$247

SeoulChiang Mai

GMP - CNX

GMPCNX

Seoul Gimpo Intl

Mon 11/10

2:25 pm-9:50 pm

1 stop9h 25m

Chiang Mai

Wed 11/12

11:05 pm-1:05 pm

1 stop12h 00m

$249

SeoulChiang Mai

GMP - CNX

GMPCNX

Seoul Gimpo Intl

Thu 1/8

2:25 pm-9:50 pm

1 stop9h 25m

Chiang Mai

Fri 1/23

11:05 pm-1:05 pm

1 stop12h 00m

$251

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 43 results
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Compare providers for flights from Seoul to Chiang Mai

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seoul to Chiang Mai in October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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

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 $251). 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 October 22, 2025.

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.

What is the cheapest day to fly from Seoul to Chiang Mai?

Use this chart to determine the cheapest time to fly round-trip from Seoul to Chiang Mai. Price data was last updated on October 19, 2025.

Travelers seeking maximum savings on their Seoul to Chiang Mai flight should consider departing on Tuesday at noon when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Seoul to Chiang Mai?

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 October 22, 2025.
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
8.7
Very good
20 reviews

Overall

8.7

Food

7.9

Entertainment

7.9

Comfort

8.3

Boarding

8.8

Crew

9.1
Jin Air
8.7
Very good
20 reviews
Jin Air
8.7
Very good
20 reviews

Overall

8.7

Food

7.9

Entertainment

7.9

Comfort

8.3

Boarding

8.8

Crew

9.1
Korean Air
8.4
Very good
1,153 reviews
Jin Air
8.7
Very good
20 reviews

Overall

8.7

Food

7.9

Entertainment

7.9

Comfort

8.3

Boarding

8.8

Crew

9.1
Asiana Airlines
8.2
Very good
485 reviews
Jin Air
8.7
Very good
20 reviews

Overall

8.7

Food

7.9

Entertainment

7.9

Comfort

8.3

Boarding

8.8

Crew

9.1
Jeju Air
7.7
Good
34 reviews
Jin Air
8.7
Very good
20 reviews

Overall

8.7

Food

7.9

Entertainment

7.9

Comfort

8.3

Boarding

8.8

Crew

9.1

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 popular is this Seoul to Chiang Mai flight route?

    This flight path from Seoul to Chiang Mai was viewed by 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Air China and Jin Air can get you from Seoul to Chiang Mai in just under 6h 15m. Your travel time can differ by up to 3h 10m. 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 $169, 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 $204 and $222, respectively. You may be able to fly from Seoul to Chiang Mai for 46% less than the average price by searching for these airlines.

  • 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: Thai Airways (95%), Asiana Airlines (95%), Eastar Jet (90%).

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

    While on average a flight from Seoul to Chiang Mai is generally $831, our data shows the cheapest flight currently is $71. When looking at the most popular route, (Incheon Intl - Chiang Mai), you can expect to pay $235 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 $251). 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.
Incheon Intl to Suvarnabhumi flights
Gimpo Intl to Suvarnabhumi flights
Incheon Intl to Chiang Mai flights
Incheon Intl to Phuket City flights
Busan to Suvarnabhumi 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 October 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Jeju AirCheapest$169Average$307FlexibilityNo cancel feeOn-timeN/A
Jin AirCheapest$204Average$361FlexibilityNo cancel feeOn-time78%
Eastar JetCheapest$222Average$300FlexibilityNo cancel feeOn-time86%
Asiana AirlinesCheapest$255Average$365FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$332Average$554FlexibilityNo cancel feeOn-time81%

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