SEL - CNX

฿3,058 Find Cheap Flights from Seoul to Chiang Mai – Compare and Save

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Everything you should know

Cheapest return flight
฿6,610
Typical prices: ฿8,467-฿12,795
Jeju Air
Fri 28/9Tue 2/10
ICN - CNX • Direct
Cheapest one-way flight
฿3,058
Typical prices: ฿3,639-฿7,211
Jeju Air
Fri 28/9
ICN - CNX • Direct
Direct flights
Every day
You can fly direct with Jin Air, Jeju Air, and others. Average duration is 5h 53m.
Direct flights
+1
Direct flights
+1
Top routes
GMP - CNX
Cheapest • 3% average savings
ICN - CNX
Most popular
Insights
Insights
When to travel
March
Cheapest • 23% price drop
January
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Guangzhou Baiyun (CAN)
Cheapest • Avg ฿6,766 (return)
Bangkok Suvarnabhumi (BKK)
Shortest trip • 8h 58m (one-way)
Insights
Insights
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Chiang Mai!
Flight Deals
Booking Insights
Flight Deals

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

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

Recent return flight deals from Seoul to Chiang Mai

Mon 28 Sep - Fri 2 Oct
Jeju Air Logo
18:10 - 22:00ICN  Incheon Intl-CNX Chiang Mai
5h 50mdirect
Jeju Air Logo
23:00 - 06:30CNX  Chiang Mai-ICN Incheon Intl
5h 30mdirect
฿6,610Jeju Air
Sun 27 Sep - Sat 3 Oct
Jeju Air Logo
18:10 - 22:00ICN  Incheon Intl-CNX Chiang Mai
5h 50mdirect
Jeju Air Logo
23:00 - 06:30CNX  Chiang Mai-ICN Incheon Intl
5h 30mdirect
฿6,840Jeju Air
Sun 27 Sep - Wed 30 Sep
Jeju Air Logo
18:10 - 22:00ICN  Incheon Intl-CNX Chiang Mai
5h 50mdirect
Jeju Air Logo
23:00 - 06:30CNX  Chiang Mai-ICN Incheon Intl
5h 30mdirect
฿6,939Jeju Air
Sat 26 Sep - Fri 2 Oct
Multiple Airlines Logo
19:55 - 23:50ICN  Incheon Intl-CNX Chiang Mai
5h 55mdirect
Multiple Airlines Logo
23:00 - 06:30CNX  Chiang Mai-ICN Incheon Intl
5h 30mdirect
฿7,004Multiple Airlines
Sat 10 Oct - Wed 28 Oct
Multiple Airlines Logo
18:10 - 22:00ICN  Incheon Intl-CNX Chiang Mai
5h 50mdirect
Multiple Airlines Logo
00:10 - 07:10CNX  Chiang Mai-ICN Incheon Intl
5h 00mdirect
฿7,103Multiple Airlines
Sat 26 Sep - Wed 30 Sep
Multiple Airlines Logo
19:55 - 23:50ICN  Incheon Intl-CNX Chiang Mai
5h 55mdirect
Multiple Airlines Logo
23:00 - 06:30CNX  Chiang Mai-ICN Incheon Intl
5h 30mdirect
฿7,136Multiple Airlines
Sat 26 Sep - Thu 1 Oct
Multiple Airlines Logo
19:55 - 23:50ICN  Incheon Intl-CNX Chiang Mai
5h 55mdirect
Multiple Airlines Logo
23:00 - 06:30CNX  Chiang Mai-ICN Incheon Intl
5h 30mdirect
฿7,169Multiple Airlines
Sun 27 Sep - Fri 2 Oct
Multiple Airlines Logo
19:55 - 23:50ICN  Incheon Intl-CNX Chiang Mai
5h 55mdirect
Multiple Airlines Logo
23:00 - 06:30CNX  Chiang Mai-ICN Incheon Intl
5h 30mdirect
฿7,465Multiple Airlines
Sat 10 Oct - Sun 25 Oct
Air Busan Logo
19:55 - 23:50ICN  Incheon Intl-CNX Chiang Mai
5h 55mdirect
Air Busan Logo
00:10 - 07:10CNX  Chiang Mai-ICN Incheon Intl
5h 00mdirect
฿7,498Air Busan
Sun 27 Sep - Sat 3 Oct
Jeju Air Logo
18:10 - 22:00ICN  Incheon Intl-CNX Chiang Mai
5h 50mdirect
Jeju Air Logo
23:00 - 06:30CNX  Chiang Mai-ICN Incheon Intl
5h 30mdirect
฿7,629Jeju Air
Booking Insights

Price, demand, and travel trends for Seoul to Chiang Mai flights

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

How much is a return flight from Seoul to Chiang Mai?

Return flights from Seoul to Chiang Mai start at ฿6,610. Prices are below average for this route right now, with typical return fares ranging from ฿8,467 to ฿12,795. The lowest price found in the past 5 days was ฿6,610 on Jeju Air.

What is the cheapest Seoul to Chiang Mai flight route?

There's little price difference between Seoul to Chiang Mai routes. They average around ฿10,102 return, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Seoul to Chiang Mai?

Wednesday is the cheapest day of the week to fly from Seoul to Chiang Mai and is 9% cheaper than the average day. Tuesday is the most expensive day with flight prices 7% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Seoul to Chiang Mai?

  • March is the cheapest month to fly from Seoul to Chiang Mai at ฿8,024 return.
  • January (฿12,825) and November (฿12,726) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 59% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Seoul to Chiang Mai the cheapest?

Flights from Seoul to Chiang Mai are cheapest in the 2 weeks before departure, based on KAYAK prices tracked over the past 12 months. During this period, fares are 5% below average.

Find deals

Key details for Seoul to Chiang Mai flights

Low season

May

Cheapest flight

฿3,058
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly (23% more expensive on average)
Flights from Incheon Intl Airport to Chiang Mai

When to book flights from Seoul to Chiang Mai

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

Your Seoul to Chiang Mai flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

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

    Among airlines operating Seoul to Chiang Mai flights:

    • Jeju Air: offers free seat selection
    • Korean Air: offers extra legroom; offers free seat selection

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

  • Which airlines are available on the route from Seoul to Chiang Mai?

    5 airlines operate flights between Seoul and Chiang Mai. The airlines offering direct flights on this route include:

    • Jin Air
    • Jeju Air
    • Eastar Jet
    • Air Busan
    • Korean Air

  • Which airports can I use when flying from Seoul to Chiang Mai?

    Flights from Seoul to Chiang Mai may depart from several airports in Seoul area, including Seoul Gimpo Intl (GMP) and Incheon Intl (ICN). Flights usually arrive at Chiang Mai (CNX).

  • Which airlines include bags at no extra cost on Seoul to Chiang Mai 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
    • Jin Air: a cabin bag and a checked bag in Economy class

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

  • Which cabin classes can I book on flights from Seoul to Chiang Mai?

    Only Economy class is available on flights from Seoul to Chiang Mai.

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

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average ฿6,766 return via Guangzhou Baiyun (CAN), compared with ฿10,459 for direct.

  • What is the standard checked bag allowance on flights from Seoul to Chiang Mai?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge ฿740–฿3,288 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which airports do connecting flights from Seoul to Chiang Mai pass through?

    One-stop flights from Seoul to Chiang Mai most commonly connect through:

    • Beijing Capital (PEK) – 38% of one-stop connections
    • Bangkok Suvarnabhumi (BKK) – 21% of one-stop connections
    • Bangkok Don Mueang Intl (DMK) – 17% of one-stop connections
    • Kuala Lumpur Intl (KUL) – 8% of one-stop connections

    Beijing Capital (PEK) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 15% on the Seoul to Chiang Mai route. Wednesday is the cheapest departure day at ฿9,537 return on average, while Tuesday is the most expensive at ฿11,214, a difference of ฿1,677. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How are flight departures from Seoul to Chiang Mai spread across the day?

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

  • What popular places can I visit in Chiang Mai?

    Some of the most popular sights in Chiang Mai are Tha Phae Gate, Wat Jed Yot, and Chang Puak Gate. These are among the most viewed places in Chiang Mai on KAYAK.

  • What are the earliest and latest flights from Seoul to Chiang Mai?

    These are the earliest and latest flight times available from Seoul to Chiang Mai:

    • Earliest: departs at 16:45 and lands at 22:38
    • Latest: departs at 19:55 and lands at 01:48.

    The flight takes about 5h 53m.

  • How expensive are last-minute Seoul to Chiang Mai flights?

    Last-minute fares on this route (booked within 2 weeks of departure) run 6% below the route average of ฿10,442. Booking late can sometimes save money on this route, but inventory is limited.

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

    A direct flight from Seoul to Chiang Mai takes 5h 53m, covering 5,512 km.

  • Do I need a passport to fly from Seoul to Chiang Mai?

    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 are flight prices from Seoul to Chiang Mai looking right now?

    One-way fares from Seoul to Chiang Mai are currently lower than usual. Average one-way flight prices are about ฿3,463, which is 32% below the typical average for this route.

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

    Flying via Bangkok Suvarnabhumi (BKK) gives the shortest average 1-stop total travel time of 8h 58m, compared to 9h 26m via Hong Kong Intl (HKG) and 9h 57m via Bangkok Don Mueang Intl (DMK).

  • What is the time difference between Seoul and Chiang Mai?

    Chiang Mai is 2 hours behind Seoul (Indochina Time vs Korean Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which car hire options are available at Chiang Mai Airport (CNX)?

    Chiang Mai Airport (CNX) hosts 5 major car hire companies, with daily rates starting from around ฿409 for economy cars. Top options include:
    · Drive Car Rental
    · Alamo
    · Sixt
    · Hertz
    · Yesaway

  • How much should I expect to pay for a Seoul to Chiang Mai flight?

    Return flights from Seoul to Chiang Mai range from ฿8,467 to ฿12,795, with an average of ฿10,442 over the past 12 months. Anything below ฿8,467 counts as a good deal.

Your guide to booking Seoul to Chiang Mai 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 Wednesday departure instead of Tuesday. On this route, Wednesday flights average ฿9,537 – about ฿1,677 less than Tuesday (15% savings) based on the last 12 months.
  • If you're flexible with your travel dates, booking last minute (within 2 weeks of departure) tends to be around 5% cheaper than the typical fare over the last 12 months, based on KAYAK data.
  • If you can choose when to travel, plan your Seoul to Chiang Mai trip for March. Fares historically average ฿8,024 return in that month – typically ฿4,801 less than the most expensive month, which is January (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Guangzhou Baiyun Airport (CAN) can be cheaper than flying direct. The cheapest stopover option averages ฿6,766 return on this route – about ฿3,693 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 Chiang Mai Airport.
    - Le Naview @Prasingh
    - Bodhi Serene, Chiang Mai
    - 99 The Gallery Hotel

More options for your flight from Seoul to Chiang Mai

Complete your trip to Chiang Mai with a hotel stay or car hire

Car rentals in Chiang Mai
Hotels in Chiang Mai