CNX - ICN

฿3,847 Find Cheap Flights from Chiang Mai to Seoul Incheon Airport – Compare and Save

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Everything you should know

Cheapest return flight
฿8,403
Typical prices: ฿10,322-฿15,578
Eastar Jet, Jeju Air
Tue 6/11Fri 9/11
CNX - ICN • Direct
Cheapest one-way flight
฿3,847
Typical prices: ฿5,107-฿8,949
Air Busan
Sun 2/12
CNX - ICN • Direct
Direct flights
You can fly direct with Korean Air, Eastar Jet, and others. Average duration is 5h 01m.
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 100% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 19 weeks in advance save around 53% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 18% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg ฿4,873 (return)
Shortest trip • 8h 18m (one-way)
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Incheon Intl Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Chiang Mai to Incheon Intl (CNX-ICN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Chiang Mai to Incheon Intl

Fri 6 Nov - Mon 9 Nov
Multiple Airlines Logo
22:15 - 05:30CNX  Chiang Mai-ICN Incheon Intl
5h 15mdirect
Multiple Airlines Logo
19:15 - 23:35ICN  Incheon Intl-CNX Chiang Mai
6h 20mdirect
฿8,403Multiple Airlines
3+ days ago
Wed 4 Nov - Sun 8 Nov
Multiple Airlines Logo
22:15 - 05:30CNX  Chiang Mai-ICN Incheon Intl
5h 15mdirect
Multiple Airlines Logo
19:15 - 23:35ICN  Incheon Intl-CNX Chiang Mai
6h 20mdirect
฿9,449Multiple Airlines
3+ days ago
Fri 6 Nov - Mon 9 Nov
Multiple Airlines Logo
16:30 - 19:25CNX  Chiang Mai-ICN Incheon Intl
24h 55m1 stop Ho Chi Minh City
Multiple Airlines Logo
19:15 - 23:35ICN  Incheon Intl-CNX Chiang Mai
6h 20mdirect
฿9,921Multiple Airlines
3+ days ago
Thu 5 Nov - Wed 11 Nov
Multiple Airlines Logo
00:35 - 07:25CNX  Chiang Mai-ICN Incheon Intl
4h 50mdirect
Multiple Airlines Logo
19:00 - 23:10ICN  Incheon Intl-CNX Chiang Mai
6h 10mdirect
฿9,921Multiple Airlines
3+ days ago
Thu 3 Dec - Sat 12 Dec
Air Busan Logo
00:10 - 07:10CNX  Chiang Mai-ICN Incheon Intl
5h 00mdirect
Air Busan Logo
19:00 - 23:10ICN  Incheon Intl-CNX Chiang Mai
6h 10mdirect
฿10,090Air Busan
1 day ago
Thu 3 Dec - Sat 12 Dec
Air Busan Logo
00:10 - 07:10CNX  Chiang Mai-ICN Incheon Intl
5h 00mdirect
Air Busan Logo
19:00 - 23:10ICN  Incheon Intl-CNX Chiang Mai
6h 10mdirect
฿10,191Air Busan
3+ days ago
Thu 3 Dec - Sat 12 Dec
Air Busan Logo
00:10 - 07:10CNX  Chiang Mai-ICN Incheon Intl
5h 00mdirect
Air Busan Logo
19:00 - 23:10ICN  Incheon Intl-CNX Chiang Mai
6h 10mdirect
฿10,225Air Busan
3+ days ago
Thu 3 Dec - Sat 12 Dec
Air Busan Logo
00:10 - 07:10CNX  Chiang Mai-ICN Incheon Intl
5h 00mdirect
Air Busan Logo
19:00 - 23:10ICN  Incheon Intl-CNX Chiang Mai
6h 10mdirect
฿10,326Air Busan
16 hours ago
Fri 6 Nov - Sat 21 Nov
Eastar Jet Logo
22:15 - 05:30CNX  Chiang Mai-ICN Incheon Intl
5h 15mdirect
Eastar Jet Logo
17:25 - 21:20ICN  Incheon Intl-CNX Chiang Mai
5h 55mdirect
฿12,992Eastar Jet
3+ days ago
Thu 8 Apr - Sat 17 Apr
Eastar Jet Logo
23:55 - 07:10CNX  Chiang Mai-ICN Incheon Intl
5h 15mdirect
Eastar Jet Logo
18:30 - 22:40ICN  Incheon Intl-CNX Chiang Mai
6h 10mdirect
฿15,422Eastar Jet
1 day ago
Booking Insights

Price, demand, and travel trends for Chiang Mai to Incheon Intl Airport flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from Chiang Mai to Incheon Intl Airport?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Chiang Mai to Incheon Intl Airport. It’s 19% cheaper than the average day, while Friday is the most expensive, with prices 14% higher.

What is the cheapest month to fly from Chiang Mai to Incheon Intl Airport?

•May is the cheapest month to fly from Chiang Mai to Incheon Intl Airport at ฿10,326 return.
•November (฿20,214) and August (฿16,434) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 95% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Chiang Mai to Incheon Intl Airport the cheapest?

Flights from Chiang Mai to Incheon Intl Airport are cheapest 19 weeks before departure. Booking in this window typically costs about 53% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Chiang Mai to Incheon Intl Airport flights

Low season

November

Cheapest flight

฿3,847
Beat the crowds with an average 47% drop in traveller numbers.
The most popular month to fly with an average 63% increase in traveller numbers.
One-way flight from Chiang Mai to Incheon Intl Airport

When to book flights from Chiang Mai to Incheon Intl

Are your dates flexible? Find out the best times to travel from Chiang Mai to Incheon Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Chiang Mai to Incheon Intl Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • What are the earliest and latest flights from Chiang Mai to Incheon Intl Airport?

    These are the earliest and latest flight times available from Chiang Mai to Incheon Intl Airport:

    • Earliest: departs at 00:10 and lands at 05:11
    • Latest: departs at 23:55 and lands at 04:56.

    The flight takes about 5h 01m.

  • Which cabin classes can I book on flights from Chiang Mai to Incheon Intl Airport?

    Only Economy class is available on flights from Chiang Mai to Incheon Intl Airport.

  • How long is a flight from Chiang Mai to Incheon Intl Airport?

    A direct flight from Chiang Mai to Incheon Intl Airport takes 5h 01m, covering 5,437 km.

  • Do I need a passport to fly from Chiang Mai to Incheon Intl Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Chiang Mai to Incheon Intl Airport flight?

    Return flights from Chiang Mai to Incheon Intl Airport range from ฿10,322 to ฿15,578, with an average of ฿12,626 over the past 12 months. Anything below ฿10,322 counts as a good deal.

  • How expensive are last-minute Chiang Mai to Incheon Intl Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) run 32% above the ฿12,626 route average. Book 19 weeks before departure for the lowest fares.

  • How much can I save by having a stopover when flying from Chiang Mai to Incheon Intl Airport?

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average ฿4,873 return via Bangkok Don Mueang Intl (DMK), compared with ฿12,591 for direct.

  • How does on-time performance compare across airlines flying from Chiang Mai to Incheon Intl Airport?

    Air Busan is slightly above the route average for timely arrivals, while Korean Air has a lower on-time arrival rate. On-time arrival rates on Chiang Mai to Incheon Intl Airport flights are:

    • Air Busan: 100% on time
    • Korean Air: 95% on time
    • Eastar Jet: 92% on time

    On average, flights on this route are punctual 89% of the time.

  • What is the standard checked bag allowance on flights from Chiang Mai to Incheon Intl Airport?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge ฿762–฿3,374 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Chiang Mai to Incheon Intl Airport?

    The Boeing 737 MAX 8 family is used most often on this route, operated mainly by Jin Air and Jeju Air. Other aircraft seen on the route include Boeing 737-800 variants.

  • How are flight departures from Chiang Mai to Incheon Intl Airport spread across the day?

    Night is the busiest departure period on Chiang Mai to Incheon Intl Airport flights, with 100% leaving in that window. Morning departures account for 0%, Afternoon flights for 0%, and Evening flights for 0%.

  • Have flight prices from Chiang Mai to Incheon Intl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about ฿8,403 to ฿67,528. That means the highest observed fare was about 8x higher than the lowest one.

  • How are flight prices from Chiang Mai to Incheon Intl Airport looking right now?

    One-way fares from Chiang Mai to Incheon Intl Airport are currently lower than usual. Average one-way flight prices are about ฿4,107, which is 41% below the typical average for this route.

  • Which car hire options are available at Incheon Intl Airport (ICN)?

    Incheon Intl Airport (ICN) hosts 5 major car rental companies, with daily rates starting from around ฿406 for economy cars. Top options include:

    • WECAR
    • Wheego
    • Yesaway
    • Alamo
    • Enterprise Rent-A-Car

  • Which airports can I use when flying from Chiang Mai to Incheon Intl Airport?

    Flights from Chiang Mai to Incheon Intl Airport usually depart from Chiang Mai (CNX) and arrive at Incheon Intl (ICN).

  • What time of day has the fewest delays on flights from Chiang Mai to Incheon Intl Airport?

    Night flights have the fewest delays on this route.

  • At what point is a flight considered delayed on the route from Chiang Mai to Incheon Intl Airport?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Chiang Mai to Incheon Intl Airport route, 11% of flights were delayed in the past three months, with delays averaging 1h 41m.

  • Which airports do connecting flights from Chiang Mai to Incheon Intl Airport pass through?

    One-stop flights from Chiang Mai to Incheon Intl Airport most commonly connect through:

    • Bangkok Don Mueang Intl (DMK) – 47% of one-stop connections
    • Bangkok Suvarnabhumi (BKK) – 21% of one-stop connections
    • Guangzhou Baiyun (CAN) – 11% of one-stop connections
    • Hong Kong Intl (HKG) – 5% of one-stop connections

  • Can I save money by using flexible dates for flights from Chiang Mai to Incheon Intl Airport?

    Yes. Flexible dates can save you up to 29% on flights from Chiang Mai to Incheon Intl Airport. Thursday is the cheapest departure day at ฿10,326 return on average, while Friday is the most expensive at ฿14,410, a difference of ฿4,083.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • Which airlines fly from Chiang Mai to Incheon Intl Airport?

    6 airlines operate flights between Chiang Mai and Incheon Intl Airport. The airlines offering direct flights on this route include:

    • Korean Air
    • Eastar Jet
    • Jin Air
    • Jeju Air
    • Air Busan
    • Trinity Airways (Formerly T'way Air)

  • How much time can I save by choosing a different stopover airport from Chiang Mai to Incheon Intl Airport?

    Flying via Bangkok Suvarnabhumi (BKK) gives the shortest average 1-stop total travel time of 8h 18m, compared to 9h 09m via Guangzhou Baiyun (CAN) and 9h 35m via Bangkok Don Mueang Intl (DMK).

  • What is the time difference between Chiang Mai and Incheon Intl Airport?

    Incheon Intl Airport is 2 hours ahead of Chiang Mai (Korean Time vs Indochina Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which airlines offer extra legroom and free seat selection on Chiang Mai to Incheon Intl Airport flights?

    Among airlines operating Chiang Mai to Incheon Intl Airport flights:

    • Eastar Jet: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Chiang Mai to Incheon Intl Airport flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Jeju Air: a cabin bag and a checked bag in Economy class
    • Eastar Jet: a cabin bag and a checked bag in Economy class
    • Air Busan: a cabin bag and a checked bag in Economy class

    Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.

Your guide to booking Chiang Mai to Incheon Intl Airport flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Friday. On this route, Thursday flights average ฿10,326, about ฿4,083 less than Friday fares (28% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 19 weeks before you fly. On this route, that window historically saves about 53% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Chiang Mai to Incheon Intl Airport trip for May. Fares historically average ฿10,326 return in that month – typically ฿9,888 less than the most expensive month, which is November (based on the last 12 months).
  • For the best chance of arriving on time, fly with Air Busan. Over the past three months, 100% of Air Busan flights from Chiang Mai to Incheon Intl Airport arrived on time, slightly above the route average of 89%. When flights on this route arrive late, they're delayed by an average of 1h 41m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Bangkok Don Mueang Intl Airport (DMK) can be cheaper than flying direct. The cheapest stopover option averages ฿4,873 return on this route – about ฿7,718 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Incheon Intl Airport.

    • Grand Hyatt Incheon
    • Best Western Premier Incheon Airport
    • Hotel Hu Incheon Airport

Prefer to fly direct from Chiang Mai to Incheon Intl?

 
Find which airlines fly direct from Chiang Mai Airport to Incheon Intl Airport, which days they fly and book direct flights.

Direct departures

Chiang Mai to Incheon Intl

Monday

Air Busan,Eastar Jet,Jeju Air, +2 more

Air Busan,Eastar Jet, +3 more

Tuesday

Eastar Jet,Jeju Air,Jin Air, +1 more

Eastar Jet,Jeju Air, +2 more

Wednesday

Eastar Jet,Jeju Air,Jin Air, +1 more

Eastar Jet,Jeju Air, +2 more

Thursday

Air Busan,Eastar Jet,Jeju Air, +2 more

Air Busan,Eastar Jet, +3 more

Friday

Air Busan,Eastar Jet,Jeju Air, +2 more

Air Busan,Eastar Jet, +3 more

Saturday

Eastar Jet,Jeju Air,Jin Air, +1 more

Eastar Jet,Jeju Air, +2 more

Sunday

Air Busan,Eastar Jet,Jeju Air, +2 more

Air Busan,Eastar Jet, +3 more

See more direct flights

Direct returns

Incheon Intl to Chiang Mai

Monday

Eastar Jet,Jeju Air,Jin Air, +1 more

Eastar Jet,Jeju Air, +2 more

Tuesday

Eastar Jet,Jeju Air,Jin Air, +1 more

Eastar Jet,Jeju Air, +2 more

Wednesday

Air Busan,Eastar Jet,Jeju Air, +2 more

Air Busan,Eastar Jet, +3 more

Thursday

Air Busan,Eastar Jet,Jeju Air, +2 more

Air Busan,Eastar Jet, +3 more

Friday

Eastar Jet,Jeju Air,Jin Air, +1 more

Eastar Jet,Jeju Air, +2 more

Saturday

Air Busan,Eastar Jet,Jeju Air, +2 more

Air Busan,Eastar Jet, +3 more

Sunday

Air Busan,Eastar Jet,Jeju Air, +2 more

Air Busan,Eastar Jet, +3 more

See more direct flights

More options for your flight from Chiang Mai to Incheon Intl

Complete your trip to Incheon with a hotel stay or car hire