₩236,000 Cheap Flights from Chiang Mai (CNX) to Seoul (ICN)

View ₩236,000 flight on Sat, May 23, 2026Opens in a new window

Popular airlines from Chiang Mai Intl. Airport (CNX) to Incheon Intl. Airport (ICN)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Chiang Mai to Seoul (CNX-ICN)

Prices were available within the past 7 days and start at ₩236,000 for one-way flights and ₩435,100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thai Lion Mantari
Sun, Jul 12 - Sat, Jul 18
CNX
Chiang Mai
ICN
Seoul
₩435,100 Roundtrip, found 5 days ago
₩435,100
Roundtrip
found 5 days ago
Select Thai Lion Mantari flight, departing Sun, Jul 12 from Chiang Mai to Seoul, returning Sat, Jul 18, priced at ₩435,100 found 5 days ago
JIN AIR
Fri, May 22 - Sun, May 31
CNX
Chiang Mai
ICN
Seoul
₩444,700 Roundtrip, found 3 days ago
₩444,700
Roundtrip
found 3 days ago
Select JIN AIR flight, departing Fri, May 22 from Chiang Mai to Seoul, returning Sun, May 31, priced at ₩444,700 found 3 days ago
JIN AIR
Sat, May 23 - Sat, May 30
CNX
Chiang Mai
ICN
Seoul
₩473,400 Roundtrip, found 19 hours ago
₩473,400
Roundtrip
found 19 hours ago
Select JIN AIR flight, departing Sat, May 23 from Chiang Mai to Seoul, returning Sat, May 30, priced at ₩473,400 found 19 hours ago
JIN AIR
Sat, May 23 - Sat, May 30
CNX
Chiang Mai
ICN
Seoul
₩533,400 Roundtrip, found 19 hours ago
₩533,400
Roundtrip
found 19 hours ago
Select JIN AIR flight, departing Sat, May 23 from Chiang Mai to Seoul, returning Sat, May 30, priced at ₩533,400 found 19 hours ago
Thai AirAsia
Fri, May 22 - Mon, May 25
CNX
Chiang Mai
ICN
Seoul
₩545,514 Roundtrip, found 20 hours ago
₩545,514
Roundtrip
found 20 hours ago
Select Thai AirAsia flight, departing Fri, May 22 from Chiang Mai to Seoul, returning Mon, May 25, priced at ₩545,514 found 20 hours ago
China Eastern Airlines
Sun, Apr 26 - Sun, May 24
CNX
Chiang Mai
ICN
Seoul
₩597,100 Roundtrip, found 3 days ago
₩597,100
Roundtrip
found 3 days ago
Select China Eastern Airlines flight, departing Sun, Apr 26 from Chiang Mai to Seoul, returning Sun, May 24, priced at ₩597,100 found 3 days ago
Jeju Air
Thu, Jun 4 - Sun, Jun 7
CNX
Chiang Mai
ICN
Seoul
₩602,600 Roundtrip, found 20 hours ago
₩602,600
Roundtrip
found 20 hours ago
Select Jeju Air flight, departing Thu, Jun 4 from Chiang Mai to Seoul, returning Sun, Jun 7, priced at ₩602,600 found 20 hours ago
Eastar Jet
Sat, May 23 - Sat, May 30
CNX
Chiang Mai
ICN
Seoul
₩615,100 Roundtrip, found 19 hours ago
₩615,100
Roundtrip
found 19 hours ago
Select Eastar Jet flight, departing Sat, May 23 from Chiang Mai to Seoul, returning Sat, May 30, priced at ₩615,100 found 19 hours ago
JIN AIR
Sat, Sep 5 - Wed, Sep 9
CNX
Chiang Mai
ICN
Seoul
₩710,100 Roundtrip, found 6 days ago
₩710,100
Roundtrip
found 6 days ago
Select JIN AIR flight, departing Sat, Sep 5 from Chiang Mai to Seoul, returning Wed, Sep 9, priced at ₩710,100 found 6 days ago
Malaysia Airlines
Wed, Apr 29 - Thu, May 7
CNX
Chiang Mai
ICN
Seoul
₩839,154 Roundtrip, found 5 days ago
₩839,154
Roundtrip
found 5 days ago
Select Malaysia Airlines flight, departing Wed, Apr 29 from Chiang Mai to Seoul, returning Thu, May 7, priced at ₩839,154 found 5 days ago

Alternative airports near Seoul

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Incheon Intl. ICN. Cheapest option available. Average driving time to city center is 47 minutes. Flights from ₩757,800
ICN
Incheon Intl.
Cheapest
Average driving time to city center47 min
Flights from ₩757,800

Find the cheapest month to fly from Chiang Mai (CNX) to Seoul (ICN)

June is typically the cheapest month to fly

From ₩363,200 - ₩550,037 per traveler.

Frequently asked questions

How much is a flight from Chiang Mai Intl. Airport (CNX) to Incheon Airport?
Based on fares quoted within the last 7 days on Expedia for flights departing within the next year, round-trip flights from Chiang Mai Airport to Incheon Intl. Airport (ICN) start from ₩435,100. Make your booking today to score the best price for your trip. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Chiang Mai Airport to Incheon Intl. Airport (ICN)?
This can vary between air carriers, as each one has its own terms and conditions. Head to the Customer Service Portal, where you'll find easy instructions on how to cancel online.
How do I find cheap flights from Chiang Mai Airport to Seoul–Incheon Intl. Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Chiang Mai Airport to Incheon Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from CNX to Incheon Airport?
It's around 3,400 kilometers between Chiang Mai and South Korea, so you'll be in your seat for a while. Keep yourself entertained with things like playing cards (if you're traveling with friends) or a good old-fashioned book.
Which airlines fly direct from CNX to Seoul–Incheon Intl. Airport?
Operating 17 flights every month, Korean Air (KE) is a popular choice when flying straight from CNX to Seoul–Incheon Intl. Airport.
Are CNX to Incheon Intl. Airport (ICN) flight tickets cheaper when they're purchased at the last minute?
Booking last minute from CNX to Seoul–Incheon Intl. Airport can be hit-or-miss. You may be able to score a great bargain, but you could also completely miss out! If you'd rather start planning your trip early, Expedia compares flight deals up to a year in advance. Just keep in mind that not all airlines issue their prices so far in advance. Our suggestion? Check back often as updates are made regularly.

Travel information

Origin airport
Chiang Mai Intl.
Destination airport
Incheon Intl.
Airlines serving
Cathay Pacific, China Airlines, China Eastern Airlines, EVA Airways, Eastar Jet, JIN AIR, Jeju Air, Korean Air, Malaysia Airlines, Scoot, Thai AirAsia, Thai Airways International, Thai Lion Mantari
Roundtrip price
₩435,100
Distance
3360 km
Average flight time
7 hours 22 mins
*Available to Expedia members.