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Cheap flights from Chiang Mai to Seoul from ฿3,920

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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — SEL
24 May — 31 May1
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 19 May 2025.

Round-trip from

฿7,874

One-way from

฿3,920

Popular in

January

Cheapest in

August

Average price

฿9,768

Good round-trip deal

฿28,219 or less

Good one-way deal

฿23,280 or less
10/6-14/6
  • 10/6-14/6
  • 2 total stops
  • 24h 30m total
  • Chiang Mai to Seoul
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Jeju Air
  • Jeju Air
  • 12/9
  • Nonstop
  • 5h 15m total
  • Chiang Mai to Seoul
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (฿105,639 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (฿13,569 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2025
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Price to beat on a round-trip flight from Chiang Mai to Seoul (SEL).
Search Deals
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 19 May 2025.

Tue 27/511:30CNX - ICN
1 stop25h 55mChina Southern
Sat 31/515:15ICN - CNX
1 stop28h 35mChina Southern
Deal found 18/5฿7,708
Tue 10/610:30CNX - ICN
1 stop9h 05mMultiple Airlines
Sat 14/618:00ICN - CNX
1 stop15h 25mMultiple Airlines
Deal found 19/5฿7,874
Wed 11/610:05CNX - ICN
2 stops22h 50mChina Eastern
Sun 15/616:35ICN - CNX
2 stops18h 30mChina Eastern
Deal found 19/5฿9,336
Thu 19/610:30CNX - ICN
1 stop9h 05mHK Express
Wed 6/802:35ICN - CNX
1 stop9h 10mHK Express
Deal found 19/5฿9,668
Thu 19/622:35CNX - ICN
Nonstop5h 15mJeju Air
Fri 8/818:00ICN - CNX
Nonstop5h 35mJeju Air
Deal found 18/5฿11,396
Thu 3/723:55CNX - ICN
1 stop21h 50mCebu Pacific
Wed 9/701:15ICN - CNX
1 stop23h 40mCebu Pacific
Deal found 19/5฿11,562
Sun 6/712:35CNX - ICN
1 stop16h 35mMalaysia Airlines
Fri 18/700:10ICN - CNX
1 stop15h 30mMalaysia Airlines
Deal found 19/5฿12,226
Fri 13/621:45CNX - ICN
Nonstop5h 20mJin Air
Mon 23/617:10ICN - CNX
Nonstop5h 35mJin Air
Deal found 18/5฿13,290
Thu 14/810:05CNX - GMP
3 stops22h 55mChina Eastern
Sun 17/820:50GMP - CNX
1 stop18h 35mChina Eastern
Deal found 18/5฿13,987
Thu 3/723:05CNX - GMP
1 stop12h 00mAir China
Thu 10/714:25GMP - CNX
1 stop9h 25mAir China
Deal found 19/5฿18,007
Sun 1/611:55CNX - GMP
2 stops20h 50mJapan Airlines
Fri 6/619:20GMP - CNX
2 stops16h 00mJapan Airlines
Deal found 18/5฿27,908

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 19 May 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

Tue 10/6

10:30-21:35

1 stop9h 05m

Incheon Intl

Sat 14/6

18:00-07:25

1 stop15h 25m

฿7,874

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Wed 11/6

10:05-10:55

2 stops22h 50m

Incheon Intl

Sun 15/6

16:35-09:05

2 stops18h 30m

฿9,336

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Thu 19/6

10:30-21:35

1 stop9h 05m

Incheon Intl

Wed 6/8

02:35-09:45

1 stop9h 10m

฿9,668

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Thu 19/6

22:35-05:50

Nonstop5h 15m

Incheon Intl

Fri 8/8

18:00-21:35

Nonstop5h 35m

฿11,396

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Thu 3/7

23:55-23:45

1 stop21h 50m

Incheon Intl

Wed 9/7

01:15-22:55

1 stop23h 40m

฿11,562

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Sun 1/6

23:55-07:10

Nonstop5h 15m

Incheon Intl

Thu 5/6

18:30-22:40

Nonstop6h 10m

฿12,060

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Sun 6/7

12:35-07:10

1 stop16h 35m

Incheon Intl

Fri 18/7

00:10-13:40

1 stop15h 30m

฿12,226

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Fri 13/6

21:45-05:05

Nonstop5h 20m

Incheon Intl

Mon 23/6

17:10-20:45

Nonstop5h 35m

฿13,290

Chiang MaiSeoul

CNX - GMP

CNXGMP

Chiang Mai

Thu 14/8

10:05-11:00

3 stops22h 55m

Seoul Gimpo Intl

Sun 17/8

20:50-13:25

1 stop18h 35m

฿13,987

Chiang MaiSeoul

CNX - GMP

CNXGMP

Chiang Mai

Thu 3/7

23:05-13:05

1 stop12h 00m

Seoul Gimpo Intl

Thu 10/7

14:25-21:50

1 stop9h 25m

฿18,007

Flights are sorted by cheapest return flights first.

Deals found on 18/5

Showing 1-10 of 26 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 19 May 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 19 May 2025.

The most flights from CNX to SEL are scheduled on a Thursday (6 on average). You will have fewer flight options on Monday, 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 19 May 2025.
Read through reviews of airlines operating flights from Chiang Mai to Seoul, such as EVA Air, Japan Airlines and China Southern. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,193 reviews
Check prices

Crew

8.6

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

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
1,193 reviews
EVA Air
8.4
Very Good
1,193 reviews
Check prices

Crew

8.6

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

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
1,474 reviews
EVA Air
8.4
Very Good
1,193 reviews
Check prices

Crew

8.6

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

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
96 reviews
EVA Air
8.4
Very Good
1,193 reviews
Check prices

Crew

8.6

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

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 ฿9,336, China Eastern will fly you from Chiang Mai to Seoul and back. In addition to China Eastern, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from HK Express and Jeju Air - these airlines can fly you to your destination from ฿9,668 and ฿11,396, respectively. China Eastern is currently priced 21% 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 Jeju Air, with whom users have recently found tickets for as low as ฿3,920. However, be on the lookout for offers from HK Express and China Southern, 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 Eastar Jet (100%), เดลต้า (99%) and Korean Air (99%).

  • 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 ฿42,504, our data indicates the cheapest price to be ฿6,113. The most popular route (Chiang Mai - Incheon Intl), is priced around ฿8,173.

  • 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 19 May 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 19 May 2025.
AirlineCheapestAverageFlexibilityOn-time
Eastar JetCheapest฿4,481Average฿11,130FlexibilityNo cancel feeOn-time86%
Search Eastar Jet flights
Jeju AirCheapest฿7,089Average฿13,899FlexibilityNo cancel feeOn-timeN/A
Search Jeju Air flights
Korean AirCheapest฿16,221Average฿19,644FlexibilityNo 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 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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