Find flights
Deals
When to book
FAQs

Cheap flights from Chiang Mai to Seoul from ฿3,700

CNX — SEL
18 Nov — 25 Nov1
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

Sat 24/1000:50 -
Nonstop5h 25m
Thu 29/1019:00 -
Nonstop6h 10m
Deal found 19/10฿7,433
Sat 24/1000:50 -
Nonstop5h 25m
Sun 1/1119:15 -
Nonstop6h 20m
Deal found 16/10฿7,766
Thu 22/1023:55 -
Nonstop5h 15m
Mon 26/1019:15 -
Nonstop6h 20m
Deal found 15/10฿8,099
Thu 5/1122:20 -
Nonstop5h 10m
Tue 10/1117:25 -
Nonstop5h 55m
Deal found 16/10฿8,299
Wed 2/1200:10 -
Nonstop5h 00m
Thu 10/1219:00 -
Nonstop6h 10m
Deal found 19/10฿8,499
Fri 30/1000:35 -
Nonstop4h 50m
Mon 2/1119:15 -
Nonstop6h 20m
Deal found 19/10฿8,532
Tue 20/1023:00 -
Nonstop5h 30m
Sat 24/1019:55 -
Nonstop5h 55m
Deal found 19/10฿8,699
Wed 28/1000:10 -
Nonstop5h 00m
Mon 2/1116:45 -
Nonstop5h 55m
Deal found 15/10฿8,932
Sat 24/1023:00 -
Nonstop5h 30m
Wed 28/1019:00 -
Nonstop6h 10m
Deal found 17/10฿8,999

Find flight deals from Chiang Mai to Seoul

Round-trip from

฿8,299

One-way from

฿3,700

Popular in

November

Cheapest in

October

Average price

฿7,999

Good round-trip deal

฿10,232 or less
Eastar Jet
  • Eastar Jet
  • 5/11-10/11
  • Nonstop
  • 11h 05m total
  • Chiang Mai to Seoul
Search Deals
Air Busan
  • Air Busan
  • 24/10-31/12
  • Nonstop
  • 5h 25m total
  • Chiang Mai to Seoul
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease (฿14,789 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
Search Deals
Price to beat on a round-trip flight from Chiang Mai to Seoul (SEL).
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Chiang Mai to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Chiang MaiIncheon

CNX Chiang Mai - ICN Incheon Intl

CNXICN

Chiang Mai

Wed 4/11

21:40-04:45

Nonstop5h 05m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿4,866
Fastest return journey

Chiang MaiIncheon

CNX Chiang Mai - ICN Incheon Intl

CNXICN

Chiang Mai

Mon 9/11

00:35-07:25

Nonstop4h 50m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿5,166

Chiang MaiIncheon

CNX Chiang Mai - ICN Incheon Intl

CNXICN

Chiang Mai

Thu 24/12

22:20-05:30

Nonstop5h 10m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿5,199

Chiang MaiIncheon

CNX Chiang Mai - ICN Incheon Intl

CNXICN

Chiang Mai

Sat 31/10

21:40-04:45

Nonstop5h 05m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿5,366

Chiang MaiIncheon

CNX Chiang Mai - ICN Incheon Intl

CNXICN

Chiang Mai

Mon 21/12

00:35-07:25

Nonstop4h 50m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿6,999

Chiang MaiIncheon

CNX Chiang Mai - ICN Incheon Intl

CNXICN

Chiang Mai

Sun 22/11

00:35-07:25

Nonstop4h 50m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿7,433

Chiang MaiIncheon

CNX Chiang Mai - ICN Incheon Intl

CNXICN

Chiang Mai

Sun 13/12

00:35-07:25

Nonstop4h 50m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿7,433

Chiang MaiIncheon

CNX Chiang Mai - ICN Incheon Intl

CNXICN

Chiang Mai

Sun 15/11

22:15-05:30

Nonstop5h 15m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿7,633

Chiang MaiIncheon

CNX Chiang Mai - ICN Incheon Intl

CNXICN

Chiang Mai

Wed 13/1

00:35-07:25

Nonstop4h 50m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿7,999

Chiang MaiIncheon

CNX Chiang Mai - ICN Incheon Intl

CNXICN

Chiang Mai

Mon 7/12

22:15-05:30

Nonstop5h 15m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿8,132

Flights are sorted by cheapest return flights first.

Deals found on 16/10

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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

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, October is the cheapest month in which you can book a flight from Chiang Mai to Seoul (average of ฿8,466). Flying from Chiang Mai to Seoul in December is currently the most expensive (average of ฿16,932). 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?

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

The most flights from CNX to SEL are scheduled on a Thursday (5 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

Related info for your journey

  • 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 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 long is the flight from Chiang Mai to Seoul?

    There are many flights that can get you from Chiang Mai to Seoul in 5h 05m. Fly via Jin Air to get the fastest option. Airlines will cover a distance of 3378 km. Most flights are nonstop.

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

    Currently priced at ฿5,845, 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 52% 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 Air Busan (100%), Eastar Jet (100%) and Jeju Air (96%).

  • 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 ฿14,624, our data indicates the cheapest price to be ฿8,078. The most popular route (Chiang Mai - Incheon Intl), is priced around ฿8,832.

  • 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, October is the cheapest month in which you can book a flight from Chiang Mai to Seoul (average of ฿8,466). Flying from Chiang Mai to Seoul in December is currently the most expensive (average of ฿16,932). 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

Alternative routes for Chiang Mai to Seoul

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

AirlineCheapestAverageFlexibilityOn-time
Eastar JetCheapest฿5,845Average฿11,302FlexibilityNo cancel feeOn-time86%
Search Eastar Jet flights

Fly with Cheapflights

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.