Find flights
Deals
When to book
FAQs

Cheap flights from Chiang Mai to Seoul from ฿3,820

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 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — SEL
27 Feb — 6 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Chiang Mai to Seoul

Enter your travel dates to find the best prices.

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 28 January 2026.

Wed 25/322:10
CNX
-
ICN
1 stop9h 55m
Multiple Airlines
Sun 29/318:30
ICN
-
CNX
Nonstop6h 10m
Multiple Airlines
Deal found 26/1฿6,615
Tue 24/322:10
CNX
-
ICN
1 stop9h 55m
Multiple Airlines
Sun 29/318:30
ICN
-
CNX
Nonstop6h 10m
Multiple Airlines
Deal found 26/1฿6,832
Wed 25/218:20
CNX
-
ICN
1 stop13h 45m
Multiple Airlines
Wed 4/317:25
ICN
-
CNX
Nonstop5h 40m
Multiple Airlines
Deal found 26/1฿6,863
Wed 25/218:20
CNX
-
ICN
1 stop13h 45m
Multiple Airlines
Sun 1/316:25
ICN
-
CNX
Nonstop6h 00m
Multiple Airlines
Deal found 26/1฿6,956
Sun 30/823:30
CNX
-
ICN
1 stop8h 35m
Multiple Airlines
Sun 6/917:20
ICN
-
CNX
Nonstop5h 25m
Multiple Airlines
Deal found 26/1฿7,143
Sun 30/823:30
CNX
-
ICN
1 stop8h 35m
Multiple Airlines
Sat 5/918:30
ICN
-
CNX
Nonstop6h 10m
Multiple Airlines
Deal found 26/1฿7,360
Fri 24/423:30
CNX
-
ICN
1 stop8h 35m
Multiple Airlines
Thu 7/518:30
ICN
-
CNX
Nonstop6h 10m
Multiple Airlines
Deal found 28/1฿7,515
Sat 29/820:00
CNX
-
ICN
1 stop12h 00m
Multiple Airlines
Sun 6/918:30
ICN
-
CNX
Nonstop6h 10m
Multiple Airlines
Deal found 26/1฿7,546
Fri 6/322:30
CNX
-
ICN
1 stop16h 05m
Multiple Airlines
Thu 12/311:20
ICN
-
CNX
1 stop9h 05m
Multiple Airlines
Deal found 27/1฿7,609
Fri 26/623:30
CNX
-
ICN
1 stop8h 35m
Multiple Airlines
Wed 15/712:10
ICN
-
CNX
1 stop9h 05m
Multiple Airlines
Deal found 28/1฿7,671
Mon 22/623:30
CNX
-
ICN
1 stop8h 35m
Multiple Airlines
Sun 28/618:30
ICN
-
CNX
Nonstop6h 10m
Multiple Airlines
Deal found 26/1฿7,702
Wed 3/623:30
CNX
-
ICN
1 stop8h 35m
Multiple Airlines
Sat 6/620:15
ICN
-
CNX
Nonstop5h 40m
Multiple Airlines
Deal found 26/1฿7,764

Find 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 28 January 2026.

Round-trip from

฿6,615

One-way from

฿3,820

Popular in

October

Cheapest in

September

Average price

฿11,863

Good round-trip deal

฿17,083 or less

Good one-way deal

฿4,820 or less
Eastar Jet
  • Eastar Jet
  • 25/3-29/3
  • 1 total stop
  • 16h 05m total
  • Chiang Mai to Seoul
Search Deals
Jeju Air
  • Jeju Air
  • 23/4
  • Nonstop
  • 5h 30m total
  • Chiang Mai to Seoul
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (฿17,834 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (฿11,824 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
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).
Search Deals

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 28 January 2026.
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

Fri 26/6

23:30-10:05

1 stop8h 35m

Incheon Intl

Thu 16/7

11:20-19:25

1 stop10h 05m

฿7,888

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Mon 15/6

21:30-10:05

1 stop10h 35m

Incheon Intl

Mon 22/6

12:10-22:00

1 stop11h 50m

฿8,043

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Sat 7/2

08:05-10:05

1 stop24h 00m

Incheon Intl

Mon 9/2

17:25-21:05

Nonstop5h 40m

฿8,416

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Wed 25/3

22:10-10:05

1 stop9h 55m

Incheon Intl

Sun 29/3

11:20-19:20

1 stop10h 00m

฿8,696

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Fri 27/3

22:25-09:55

1 stop9h 30m

Incheon Intl

Tue 31/3

11:20-19:25

1 stop10h 05m

฿8,789

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Wed 25/2

22:05-05:30

Nonstop5h 25m

Incheon Intl

Wed 4/3

17:25-21:05

Nonstop5h 40m

฿9,317

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Wed 6/5

10:30-10:05

1 stop21h 35m

Incheon Intl

Sat 30/5

12:10-22:05

1 stop11h 55m

฿9,348

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Fri 24/4

20:00-10:05

1 stop12h 05m

Incheon Intl

Thu 7/5

10:05-21:35

2 stops13h 30m

฿9,441

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Tue 30/6

21:15-10:05

1 stop10h 50m

Incheon Intl

Tue 21/7

18:10-22:00

Nonstop5h 50m

฿9,441

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Fri 13/2

06:35-21:30

2 stops12h 55m

Incheon Intl

Wed 18/2

17:25-21:05

Nonstop5h 40m

฿9,534

Flights are sorted by cheapest return flights first.

Deals found on 27/1

Showing 1-10 of 44 results
1
2
3
...
5

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, February is the cheapest month in which you can book a flight from Chiang Mai to Seoul (average of ฿4,192). Flying from Chiang Mai to Seoul in November is currently the most expensive (average of ฿10,683). 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 28 January 2026.

When flying from Chiang Mai to Seoul, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 28 January 2026.

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

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 7 outbound flights to Seoul per day. You should also have plenty of airline options to choose from since 1 airline has 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.

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

    There are many flights that can get you from Chiang Mai to Seoul in 12h. Fly via Air China to get the fastest option. Airlines will cover a distance of 3412 km.

  • What is the cheapest airline to fly from Chiang Mai to Seoul round-trip?

    Currently priced at ฿4,189, Eastar Jet will fly you from Chiang Mai to Seoul and back. In addition to Eastar Jet, many other airlines offer competitively priced options for your trip. Eastar Jet is currently priced 64% below the average price you’ll pay for this route.

  • 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 (97%), Eastar Jet (92%) and T'way Air (89%).

  • 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 ฿13,602, our data indicates the cheapest price to be ฿4,820. The most popular route (Chiang Mai - Incheon Intl), is priced around ฿6,615.

  • 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, February is the cheapest month in which you can book a flight from Chiang Mai to Seoul (average of ฿4,192). Flying from Chiang Mai to Seoul in November is currently the most expensive (average of ฿10,683). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chiang Mai to Seoul

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

Top airline flying from Chiang Mai to Seoul

Discover the top airline 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 28 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Eastar JetCheapest฿4,189Average฿11,402FlexibilityNo cancel feeOn-time86%
Search Eastar Jet flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.