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$142+ Cheap flights from Chiang Mai (CNX) to Seoul (SEL)

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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — SEL
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$348
(Jeju Air)

One-way from

$142
(Mytrip)

Popular in

January

Cheapest in

August

Average price

$289

Good round-trip deal

$736 or less

Good one-way deal

$598 or less
Provider with most accurate pricing for Chiang Mai-Seoul (SEL) flight deals.
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Provider most trusted by Cheapflights users for Chiang Mai-Seoul (SEL) flights.
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From Chiang Mai to Seoul (SEL)
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One-way flight from Chiang Mai to Seoul (SEL)
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($82 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Chiang Mai to Seoul (SEL).
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Price to beat on a one-way flight from Chiang Mai to Seoul (SEL).
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Find flight deals from Chiang Mai to Seoul

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 March 28, 2025.

This Jeju Air deal was found by Cheapflights users on 3/27. 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 Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2010:35 pmCNX - ICN
Nonstop5h 15mJeju Air
Wed 4/236:00 pmICN - CNX
Nonstop5h 35mJeju Air
Deal found 3/27$348
This Eastar Jet deal was found by Cheapflights users on 3/27. 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.
Fri 3/289:50 pmCNX - ICN
Nonstop5h 55mEastar Jet
Thu 4/176:30 pmICN - CNX
Nonstop6h 10mEastar Jet
Deal found 3/27$422
This China Airlines deal was found by Cheapflights users on 3/27. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2811:25 amCNX - ICN
1 stop21h 55mChina Airlines
Thu 4/178:35 pmICN - CNX
1 stop15h 45mChina Airlines
Deal found 3/27$523
This FlightHub deal was found by Cheapflights users on 3/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/12:55 pmCNX - ICN
2 stops21h 55mChina Eastern
Wed 4/308:30 amICN - CNX
2 stops26h 35mChina Eastern
Deal found 3/27$588
This Cathay Pacific deal was found by Cheapflights users on 3/27. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/17:25 pmCNX - ICN
1 stop15h 15mMultiple Airlines
Wed 4/303:10 pmICN - CNX
2 stops22h 05mMultiple Airlines
Deal found 3/27$592
This Malaysia Airlines deal was found by Cheapflights users on 3/27. 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 Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2812:25 pmCNX - ICN
1 stop31h 45mMalaysia Airlines
Wed 4/1612:10 amICN - CNX
1 stop15h 30mMalaysia Airlines
Deal found 3/27$623
This Cathay Pacific deal was found by Cheapflights users on 3/27. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/17:25 pmCNX - ICN
1 stop15h 15mCathay Pacific
Wed 4/3010:10 amICN - CNX
1 stop10h 30mCathay Pacific
Deal found 3/27$708
This Priceline deal was found by Cheapflights users on 3/25. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/232:55 pmCNX - GMP
1 stop26h 55mMultiple Airlines
Wed 4/302:25 pmGMP - CNX
1 stop9h 25mMultiple Airlines
Deal found 3/25$785
This Korean Air deal was found by Cheapflights users on 3/27. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/111:15 pmCNX - ICN
Nonstop5h 25mKorean Air
Wed 4/306:25 pmICN - CNX
Nonstop5h 30mKorean Air
Deal found 3/27$834
This FlightHub deal was found by Cheapflights users on 3/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3112:45 amCNX - ICN
Nonstop5h 05mAsiana Airlines
Wed 4/307:50 pmICN - CNX
Nonstop5h 50mAsiana Airlines
Deal found 3/27$1,005
This Priceline deal was found by Cheapflights users on 3/25. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/234:20 pmCNX - GMP
2 stops16h 40mChina Eastern
Wed 4/3012:00 pmGMP - CNX
2 stops23h 05mChina Eastern
Deal found 3/25$1,089
This Japan Airlines deal was found by Cheapflights users on 3/26. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/810:10 amCNX - GMP
2 stops22h 35mJapan Airlines
Thu 5/157:20 pmGMP - CNX
2 stops17h 55mJapan Airlines
Deal found 3/26$2,430

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated March 28, 2025.
Use the filters below to find and compare flights from Chiang Mai to Seoul that are best for you.

Fly from

Chiang Mai

Fly to

Seoul

Route

Depart

Return

Price

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Sun 4/20

10:35 pm-5:50 am

Nonstop5h 15m

Incheon Intl

Wed 4/23

6:00 pm-9:35 pm

Nonstop5h 35m

$348

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Sat 4/26

8:00 pm-9:10 pm

2 stops23h 10m

Incheon Intl

Sat 5/10

1:40 pm-9:20 am

2 stops21h 40m

$596

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Sun 5/11

2:35 pm-7:10 am

2 stops14h 35m

Incheon Intl

Sat 5/17

12:10 am-11:40 am

1 stop13h 30m

$624

Chiang MaiSeoul

CNX - GMP

CNXGMP

Chiang Mai

Wed 4/23

2:55 pm-7:50 pm

1 stop26h 55m

Seoul Gimpo Intl

Wed 4/30

2:25 pm-9:50 pm

1 stop9h 25m

$785

Chiang MaiSeoul

CNX - GMP

CNXGMP

Chiang Mai

Wed 4/23

4:20 pm-11:00 am

2 stops16h 40m

Seoul Gimpo Intl

Wed 4/30

12:00 pm-9:05 am

2 stops23h 05m

$1,089

Chiang MaiSeoul

CNX - GMP

CNXGMP

Chiang Mai

Thu 5/8

10:10 am-10:45 am

2 stops22h 35m

Seoul Gimpo Intl

Thu 5/15

7:20 pm-11:15 am

2 stops17h 55m

$2,430

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Thu 5/15

6:50 pm-1:55 pm

1 stop17h 05m

$142

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Thu 9/18

9:45 pm-5:05 am

Nonstop5h 20m

$145

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Thu 5/15

11:55 pm-7:10 am

Nonstop5h 15m

$146

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Wed 4/9

10:35 pm-5:50 am

Nonstop5h 15m

$148

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 21 results
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2
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Compare providers for flights from Chiang Mai to Seoul

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 Chiang Mai to Seoul in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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 Chiang Mai-Seoul flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chiang Mai-Seoul flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chiang Mai-Seoul flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chiang Mai-Seoul 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 Chiang Mai-Seoul 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 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 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 Chiang Mai to Seoul

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

Currently, February is the cheapest month in which you can book a flight from Chiang Mai to Seoul (average of $1,002). Flying from Chiang Mai to Seoul in June is currently the most expensive (average of $1,661). 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 March 28, 2025.

One of the essential ways to save on airfare from Chiang Mai to Seoul is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 5% on airfare.

Rainfall in Seoul by month

Plan your trip to Seoul by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seoul ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul when rainfall is around 1.1 in.

Temperature in Seoul by month

Plan your trip to Seoul by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated March 28, 2025.
EVA Air
8.4
Very good
1,169 reviews

Crew

8.6

Food

8.1

Overall

8.4

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
EVA Air
8.4
Very good
1,169 reviews
EVA Air
8.4
Very good
1,169 reviews

Crew

8.6

Food

8.1

Overall

8.4

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Japan Airlines
8.3
Very good
1,440 reviews
EVA Air
8.4
Very good
1,169 reviews

Crew

8.6

Food

8.1

Overall

8.4

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
China Airlines
8.2
Very good
722 reviews
EVA Air
8.4
Very good
1,169 reviews

Crew

8.6

Food

8.1

Overall

8.4

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Asiana Airlines
8.2
Very good
440 reviews
EVA Air
8.4
Very good
1,169 reviews

Crew

8.6

Food

8.1

Overall

8.4

Entertainment

8.0

Comfort

8.3

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

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?

    For a flight from Chiang Mai to Seoul, you will be flying from Chiang Mai. Chiang Mai (CNX) is just 1.9 mi from the center of the city. Chiang Mai is the only Chiang Mai airport and it handles 2 outbound flights to Seoul per day. 0 airlines have flights to Seoul from Chiang Mai on a regular basis.

  • How popular is this Chiang Mai to Seoul flight route?

    The Chiang Mai to Seoul flight path was viewed by 8 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    According to our current data, Jeju Air ($348), Malaysia Airlines ($624), and China Eastern ($1,089) offers the cheapest pricing from Chiang Mai to Seoul. Jeju Air is 6% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airline one-way is China Southern, with whom users have recently found tickets for as low as $142. However, be on the lookout for offers from Jin Air and Eastar Jet, as they are both options that can get you from Chiang Mai to Seoul for a low price.

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

    Consider Jin Air (93%), Jeju Air (89%) or Eastar Jet (85%) when booking your flight. These represent the most reliable airlines when flying from Chiang Mai to Seoul.

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

    Looking at all options, your cheapest flight can be booked for $164. While the most popular route (Chiang Mai - Incheon Intl) can be booked for $297 on average our data indicates $2,079 when flying from Chiang Mai to Seoul.

  • 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 vacation 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, February is the cheapest month in which you can book a flight from Chiang Mai to Seoul (average of $1,002). Flying from Chiang Mai to Seoul in June is currently the most expensive (average of $1,661). 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.

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