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Cheap flights from Chiang Mai to Seoul from ฿3,856

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 18/7. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — SEL
18 Jun — 25 Jun1
1 adult

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 13 June 2025.

Round-trip from

฿6,611

One-way from

฿3,856

Popular in

January

Cheapest in

May

Average price

฿15,101

Good round-trip deal

฿27,428 or less

Good one-way deal

฿22,707 or less
5/7-10/7
  • 5/7-10/7
  • 2 total stops
  • 30h 00m total
  • Chiang Mai to Seoul
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18/7
  • 18/7
  • 1 total stop
  • 24h 20m total
  • Chiang Mai to Seoul
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Highest demand for flights based on searches. 18% potential increase in price (฿89,243 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (฿11,798 potential savings vs. average return price).
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Average for round-trip flights in June 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 13 June 2025.

Sat 5/717:45CNX - ICN
1 stop14h 35mMultiple Airlines
Thu 10/718:00ICN - CNX
1 stop15h 25mMultiple Airlines
Deal found 11/6฿6,611
Wed 6/810:30CNX - ICN
1 stop13h 10mHK Express
Sat 9/802:35ICN - CNX
1 stop9h 10mHK Express
Deal found 12/6฿9,462
Sat 14/622:35CNX - ICN
Nonstop5h 15mJeju Air
Sun 31/818:00ICN - CNX
Nonstop5h 35mJeju Air
Deal found 12/6฿10,143
Mon 16/616:20CNX - ICN
3 stops18h 55mChina Eastern
Mon 30/615:55ICN - CNX
2 stops23h 30mChina Eastern
Deal found 11/6฿10,597
Mon 30/623:05CNX - GMP
1 stop12h 00mAir China
Tue 15/714:25GMP - CNX
1 stop9h 25mAir China
Deal found 11/6฿10,694
Mon 30/623:05CNX - GMP
1 stop12h 00mMultiple Airlines
Wed 16/720:50GMP - CNX
1 stop18h 35mMultiple Airlines
Deal found 11/6฿11,148
Sun 2/1112:25CNX - ICN
1 stop16h 05mMalaysia Airlines
Thu 6/1111:05ICN - CNX
1 stop26h 20mMalaysia Airlines
Deal found 11/6฿11,536
Mon 30/614:55CNX - GMP
1 stop26h 55mChina Eastern
Wed 16/720:50GMP - CNX
2 stops20h 30mChina Eastern
Deal found 11/6฿11,634
Fri 4/711:35CNX - GMP
1 stop23h 15mEVA Air
Fri 11/713:50GMP - CNX
1 stop22h 35mEVA Air
Deal found 11/6฿24,434
Thu 3/710:10CNX - GMP
2 stops22h 35mJapan Airlines
Wed 16/719:20GMP - CNX
2 stops16h 00mJapan Airlines
Deal found 11/6฿25,730
Wed 29/1011:25CNX - GMP
1 stop23h 20mChina Airlines
Thu 6/1113:45GMP - CNX
1 stop22h 40mChina Airlines
Deal found 11/6฿48,608
Sun 15/611:30CNX - GMP
2 stops46h 55mChina Southern
Tue 24/613:30GMP - CNX
2 stops30h 20mChina Southern
Deal found 11/6฿102,207

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 13 June 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

Sat 5/7

17:45-10:20

1 stop14h 35m

Incheon Intl

Thu 10/7

18:00-07:25

1 stop15h 25m

฿6,611

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Wed 6/8

10:30-01:40

1 stop13h 10m

Incheon Intl

Sat 9/8

02:35-09:45

1 stop9h 10m

฿9,462

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Mon 23/6

16:20-13:15

3 stops18h 55m

Incheon Intl

Wed 25/6

18:25-13:25

1 stop21h 00m

฿10,694

Chiang MaiSeoul

CNX - GMP

CNXGMP

Chiang Mai

Mon 30/6

23:05-13:05

1 stop12h 00m

Seoul Gimpo Intl

Tue 15/7

14:25-21:50

1 stop9h 25m

฿10,694

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Sun 27/7

12:35-07:10

1 stop16h 35m

Incheon Intl

Sun 3/8

11:00-11:40

1 stop26h 40m

฿10,823

Chiang MaiSeoul

CNX - GMP

CNXGMP

Chiang Mai

Mon 30/6

23:05-13:05

1 stop12h 00m

Seoul Gimpo Intl

Wed 16/7

20:50-13:25

1 stop18h 35m

฿11,148

Chiang MaiSeoul

CNX - GMP

CNXGMP

Chiang Mai

Mon 30/6

14:55-19:50

1 stop26h 55m

Seoul Gimpo Intl

Wed 16/7

20:50-15:20

2 stops20h 30m

฿11,634

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Sun 6/7

18:50-15:25

1 stop18h 35m

Incheon Intl

Sat 19/7

16:45-17:50

1 stop27h 05m

฿12,444

Chiang MaiSeoul

CNX - GMP

CNXGMP

Chiang Mai

Fri 4/7

11:35-12:50

1 stop23h 15m

Seoul Gimpo Intl

Fri 11/7

13:50-10:25

1 stop22h 35m

฿24,434

Chiang MaiSeoul

CNX - GMP

CNXGMP

Chiang Mai

Thu 3/7

10:10-10:45

2 stops22h 35m

Seoul Gimpo Intl

Wed 16/7

19:20-09:20

2 stops16h 00m

฿25,730

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 25 results
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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, June is the cheapest month in which you can book a flight from Chiang Mai to Seoul (average of ฿152). Flying from Chiang Mai to Seoul in January is currently the most expensive (average of ฿388). 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 13 June 2025.

It’s typically best to fly out from Chiang Mai to Seoul in the morning. Doing so could potentially save you 15% on the flight price compared to flying at midday, which is usually more expensive.

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 13 June 2025.

The most flights from CNX to SEL are scheduled on a Monday (6 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

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 27.0 - 253.0 inches per month. July is typically the wettest month, when rainfall can reach 253.0 mm. December is typically the driest time to visit Seoul when rainfall is around 27.0 mm.

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 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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 13 June 2025.
Read through reviews of airlines operating flights from Chiang Mai to Seoul, such as EVA Air, Japan Airlines and China Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Food

8.1

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
EVA Air
8.4
Very Good
1,202 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Food

8.1

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Japan Airlines
8.3
Very Good
1,490 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Food

8.1

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
China Airlines
8.3
Very Good
738 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Food

8.1

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
China Southern
7.5
Good
99 reviews
EVA Air
8.4
Very Good
1,202 reviews
Check prices

Food

8.1

Comfort

8.3

Entertainment

8.0

Boarding

8.4

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

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 4 outbound flights to Seoul per day. You should also have plenty of airline options to choose from since 3 airlines have 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 popular is this Chiang Mai to Seoul flight route?

    The Chiang Mai to Seoul flight path was viewed by 89 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?

    Currently priced at ฿10,402, HK Express will fly you from Chiang Mai to Seoul and back. In addition to HK Express, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air China and China Eastern - these airlines can fly you to your destination from ฿10,694 and ฿10,726, respectively. HK Express is currently priced 13% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is HK Express, with whom users have recently found tickets for as low as ฿4,731. However, be on the lookout for offers from Jeju Air and Cebu Pacific, 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?

    The top 3 most reliable airlines when flying from Chiang Mai to Seoul are เดลต้า (98%), Korean Air (98%) and Eastar Jet (97%).

  • 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 ฿77,638, our data indicates the cheapest price to be ฿5,383. The most popular route (Chiang Mai - Incheon Intl), is priced around ฿7,064.

  • 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, June is the cheapest month in which you can book a flight from Chiang Mai to Seoul (average of ฿152). Flying from Chiang Mai to Seoul in January is currently the most expensive (average of ฿388). 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

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Fly from Chiang Mai to Seoul on these airlines

Choose from the following airlines for your flight from Chiang Mai to Seoul. Flights are based on user searches made on Cheapflights and were last updated on 13 June 2025.
Jeju Air flights from Chiang Mai to Seoul
Korean Air flights from Chiang Mai to Seoul

Top 3 airlines flying from Chiang Mai to Seoul

Discover the top 3 airlines 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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Eastar JetCheapest฿4,371Average฿10,856FlexibilityNo cancel feeOn-time86%
Search Eastar Jet flights
Jeju AirCheapest฿6,914Average฿13,556FlexibilityNo cancel feeOn-timeN/A
Search Jeju Air flights
Korean AirCheapest฿15,821Average฿19,160FlexibilityNo cancel feeOn-time81%
Search Korean Air flights

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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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