$120+ Cheap flights from Seoul (SEL) to Chiang Mai (CNX)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — CNX
Nov 7 — Nov 141
Round-trip
1 adult, Economy
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Find cheap flights from Seoul to Chiang Mai with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Seoul to Chiang Mai are usually found in March or April, booked 36 days in advance, depart on a Tuesday or Saturday and return on a Saturday
Cheap flight deals from Seoul to Chiang Mai
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seoul to Chiang MaiExplore the most affordable flight options available from Seoul to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 8, 2026.
Explore the most affordable flight options available from Seoul to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 8, 2026.
This Eastar Jet deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Eastar Jet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:30 pm -
Nonstop5h 45m
Thu 10/2211:55 pm -
Nonstop5h 15m
Deal found 10/7![Eastar Jet logo]()
$255
This Eastar Jet deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Eastar Jet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/25:25 pm -
Nonstop5h 55m
Mon 11/910:15 pm -
Nonstop5h 15m
Deal found 10/6![Eastar Jet logo]()
$268
This CheapOair deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:30 pm -
Nonstop5h 45m
Mon 10/1911:00 pm -
Nonstop5h 30m
Deal found 10/6![Multiple Airlines logo]()
$279
This Jeju Air deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:10 pm -
Nonstop5h 50m
Fri 10/1611:00 pm -
Nonstop5h 30m
Deal found 10/7![Jeju Air logo]()
$282
This Jeju Air deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:10 pm -
Nonstop5h 50m
Mon 10/1911:00 pm -
Nonstop5h 30m
Deal found 10/6![Jeju Air logo]()
$283
This Jeju Air deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:10 pm -
Nonstop5h 50m
Mon 10/1911:00 pm -
Nonstop5h 30m
Deal found 10/7![Jeju Air logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/34:45 pm -
Nonstop5h 55m
Sat 11/710:20 pm -
Nonstop5h 10m
Deal found 10/3![Multiple Airlines logo]()
$286
This Booking.com deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:15 pm -
Nonstop6h 20m
Sat 11/1412:10 am -
Nonstop5h 00m
Deal found 10/6![Multiple Airlines logo]()
$289
This Jeju Air deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:10 pm -
Nonstop5h 50m
Sun 10/1811:00 pm -
Nonstop5h 30m
Deal found 10/5![Jeju Air logo]()
$290
This FlightHub deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:10 pm -
Nonstop5h 50m
Sun 10/1811:00 pm -
Nonstop5h 30m
Deal found 10/5![Hahn Air Systems logo]()
$293
This SmartFares deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:10 pm -
Nonstop5h 50m
Thu 10/1511:00 pm -
Nonstop5h 30m
Deal found 10/5![Jeju Air logo]()
$296
Best flights from Seoul to Chiang MaiDiscover carefully curated flight deals from Seoul to Chiang Mai that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 8, 2026.
Discover carefully curated flight deals from Seoul to Chiang Mai that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 8, 2026.
This Eastar Jet deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Eastar Jet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/25:25 pm -
Nonstop5h 55m
Mon 11/910:15 pm -
Nonstop5h 15m
Deal found 10/6![Eastar Jet logo]()
$268
This Jeju Air deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:15 pm -
Nonstop6h 20m
Fri 11/612:35 am -
Nonstop4h 50m
Deal found 10/5![Jeju Air logo]()
$283
This Booking.com deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:25 am -
1 stop27h 10m
Thu 11/1210:20 pm -
Nonstop5h 10m
Deal found 10/7![Multiple Airlines logo]()
$322
This Jin Air deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jin Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/174:45 pm -
Nonstop5h 55m
Sun 11/229:40 pm -
Nonstop5h 05m
Deal found 10/3![Jin Air logo]()
$412
This Booking.com deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:25 pm -
Nonstop5h 55m
Thu 11/1210:20 pm -
Nonstop5h 10m
Deal found 10/7![Eastar Jet logo]()
$336
This Jeju Air deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:10 pm -
Nonstop5h 50m
Thu 10/2912:35 am -
Nonstop4h 50m
Deal found 10/7![Jeju Air logo]()
$355
This Eastar Jet deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Eastar Jet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/315:25 pm -
Nonstop5h 55m
Fri 11/610:15 pm -
Nonstop5h 15m
Deal found 10/7![Eastar Jet logo]()
$359
This Jin Air deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jin Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/104:45 pm -
Nonstop5h 55m
Tue 12/159:40 pm -
Nonstop5h 05m
Deal found 10/6![Jin Air logo]()
$438
This Jeju Air deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/307:15 pm -
Nonstop6h 20m
Wed 3/312:35 am -
Nonstop4h 50m
Deal found 10/3![Jeju Air logo]()
$432
This Jin Air deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jin Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/164:45 pm -
Nonstop5h 55m
Fri 11/279:40 pm -
Nonstop5h 05m
Deal found 10/4![Jin Air logo]()
$441
Last-minute flights from Seoul to Chiang MaiDiscover last-minute flight deals from Seoul to Chiang Mai. Data last updated October 8, 2026 and is based on user searches.
Discover last-minute flight deals from Seoul to Chiang Mai. Data last updated October 8, 2026 and is based on user searches.
This Jeju Air deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:10 pm -
Nonstop5h 50m
Fri 10/1611:00 pm -
Nonstop5h 30m
Deal found 10/7![Jeju Air logo]()
$282
This Jeju Air deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:10 pm -
Nonstop5h 50m
Sun 10/1811:00 pm -
Nonstop5h 30m
Deal found 10/5![Jeju Air logo]()
$290
This SmartFares deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:10 pm -
Nonstop5h 50m
Thu 10/1511:00 pm -
Nonstop5h 30m
Deal found 10/5![Jeju Air logo]()
$296
This Jeju Air deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:10 pm -
Nonstop5h 50m
Mon 10/1911:00 pm -
Nonstop5h 30m
Deal found 10/6![Jeju Air logo]()
$283
This Eastar Jet deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Eastar Jet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:30 pm -
Nonstop5h 45m
Thu 10/2211:55 pm -
Nonstop5h 15m
Deal found 10/7![Eastar Jet logo]()
$255
This CheapOair deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:30 pm -
Nonstop5h 45m
Mon 10/1911:00 pm -
Nonstop5h 30m
Deal found 10/6![Multiple Airlines logo]()
$279
This Jeju Air deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:10 pm -
Nonstop5h 50m
Mon 10/1911:00 pm -
Nonstop5h 30m
Deal found 10/7![Jeju Air logo]()
$284
This FlightHub deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:10 pm -
Nonstop5h 50m
Sun 10/1811:00 pm -
Nonstop5h 30m
Deal found 10/5![Hahn Air Systems logo]()
$293
This Booking.com deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:15 pm -
Nonstop6h 20m
Sat 11/1412:10 am -
Nonstop5h 00m
Deal found 10/6![Multiple Airlines logo]()
$289
This Eastar Jet deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Eastar Jet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/25:25 pm -
Nonstop5h 55m
Mon 11/910:15 pm -
Nonstop5h 15m
Deal found 10/6![Eastar Jet logo]()
$268
This Kiwi.com deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/34:45 pm -
Nonstop5h 55m
Sat 11/710:20 pm -
Nonstop5h 10m
Deal found 10/3![Multiple Airlines logo]()
$286
One-way flights from Seoul to Chiang MaiSearch for one-way flight options from Seoul to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated October 8, 2026.
Search for one-way flight options from Seoul to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated October 8, 2026.
This Eastar Jet deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Eastar Jet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:30 pm -
Nonstop5h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Eastar Jet logo]()
$120
This Jeju Air deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:10 pm -
Nonstop5h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Jeju Air logo]()
$123
This Mytrip deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:00 pm -
Nonstop6h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Air Busan logo]()
$134
This oojo deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:10 pm -
Nonstop5h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Hahn Air Systems logo]()
$137
This Jeju Air deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jeju Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:15 pm -
Nonstop6h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Jeju Air logo]()
$144
This FlightHub deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:15 pm -
Nonstop6h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Hahn Air Systems logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:00 pm -
Nonstop6h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/3![Air Busan logo]()
$158
This OneTravel deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/307:15 pm -
Nonstop6h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Hahn Air Systems logo]()
$159
This Jin Air deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jin Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/94:45 pm -
Nonstop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Jin Air logo]()
$161
This OneTravel deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:25 pm -
Nonstop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Eastar Jet logo]()
$162
Find flight deals from Seoul to Chiang Mai
Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to Chiang Mai (CNX). 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 October 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $268 (Eastar Jet) |
One-way from | $120 (Eastar Jet) |
Popular in | January |
Cheapest in | March |
Average price | $301 |
Good round-trip deal | $293 or less |
Good one-way deal | $167 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Seoul to Chiang Mai 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 7,457,451 searches. Data last updated October 8, 2026.
Use the filters below to find and compare flights from Seoul to Chiang Mai that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
IncheonChiang Mai
ICN Incheon Intl - CNX Chiang Mai
ICNCNX
Incheon Intl
Wed 10/14
6:10 pm-10:00 pm
Nonstop5h 50m
Chiang Mai
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$123
IncheonChiang Mai
ICN Incheon Intl - CNX Chiang Mai
ICNCNX
Incheon Intl
Mon 11/9
7:15 pm-11:35 pm
Nonstop6h 20m
Chiang Mai
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$139
IncheonChiang Mai
ICN Incheon Intl - CNX Chiang Mai
ICNCNX
Incheon Intl
Mon 11/2
7:15 pm-11:35 pm
Nonstop6h 20m
Chiang Mai
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$144
IncheonChiang Mai
ICN Incheon Intl - CNX Chiang Mai
ICNCNX
Incheon Intl
Tue 11/10
4:45 pm-8:40 pm
Nonstop5h 55m
Chiang Mai
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$169
IncheonChiang Mai
ICN Incheon Intl - CNX Chiang Mai
ICNCNX
Incheon Intl
Sun 11/8
4:45 pm-8:40 pm
Nonstop5h 55m
Chiang Mai
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$169
IncheonChiang Mai
ICN Incheon Intl - CNX Chiang Mai
ICNCNX
Incheon Intl
Sun 12/20
7:15 pm-11:35 pm
Nonstop6h 20m
Chiang Mai
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$169
IncheonChiang Mai
ICN Incheon Intl - CNX Chiang Mai
ICNCNX
Incheon Intl
Thu 11/5
4:20 pm-2:20 pm
1 stop24h 00m
Chiang Mai
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$181
IncheonChiang Mai
ICN Incheon Intl - CNX Chiang Mai
ICNCNX
Incheon Intl
Sat 11/7
8:50 pm-2:20 pm
2 stops19h 30m
Chiang Mai
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$184
IncheonChiang Mai
ICN Incheon Intl - CNX Chiang Mai
ICNCNX
Incheon Intl
Sat 11/28
7:15 pm-11:35 pm
Nonstop6h 20m
Chiang Mai
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$184
IncheonChiang Mai
ICN Incheon Intl - CNX Chiang Mai
ICNCNX
Incheon Intl
Mon 12/28
8:50 pm-3:25 pm
2 stops20h 35m
Chiang Mai
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$189
Showing 1-10 of 20 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Seoul-Chiang Mai flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seoul-Chiang Mai flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seoul-Chiang Mai flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seoul-Chiang Mai flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seoul-Chiang Mai flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seoul to Chiang Mai
Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from Seoul with our price prediction graph.
SEL-CNX
ICN-CNX
Estimated round-trip 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 Seoul to Chiang Mai
SEL-CNX
ICN-CNX
What is the cheapest month to book a flight from Seoul to Chiang Mai?
Currently, March is the cheapest month in which you can book a flight from Seoul to Chiang Mai (average of $243). Flying from Seoul to Chiang Mai in January is currently the most expensive (average of $390). 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 SEL to CNX?
Find hourly flight availability from Seoul to Chiang Mai. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 8, 2026.
When flying from Seoul to Chiang Mai, 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 Seoul to Chiang Mai
Explore weekly flight availability from Seoul to Chiang Mai. 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 October 8, 2026.
The most flights from SEL to CNX are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).
How much does it cost to fly round-trip from Seoul to Chiang Mai?
Airfare is typical for this route at the moment.
Seoul to Chiang Mai flights typically cost between $244 and $349 in November.The cheapest round-trip price found within the last 5 days was $268 on Eastar Jet (Nov 2-Nov 9).
How far ahead should I book a flight from Seoul to Chiang Mai?
Booking 88 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seoul to Chiang Mai. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Chiang Mai
Get insights into the airlines that provide service to Chiang Mai. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chiang Mai. Reviews last updated October 8, 2026.
Read through reviews of airlines operating flights from Seoul to Chiang Mai, such as Jin Air,Korean Air, andJeju Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Related info for your journey
Find useful and relevant information for your journey from Seoul to Chiang Mai. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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.
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Other flights to Chiang Mai
Explore flights to Chiang Mai departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 8, 2026.
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Complete your trip to Chiang Mai by adding a car rental and/or hotel reservation to your travel itinerary.
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Seoul and Chiang Mai flights
Browse other Seoul and Chiang Mai flight options. Last updated on October 8, 2026.
Other flights from Seoul
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Top 4 airlines flying from Seoul to Chiang Mai
Discover the top 4 airlines that operate flights from Seoul to Chiang Mai. 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 7,457,451 searches. Data last updated October 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$144 | Average$395 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$191 | Average$300 | FlexibilityNo cancel fee | On-time86% | |
| Cheapest$224 | Average$323 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$418 | Average$632 | FlexibilityNo cancel fee | On-time81% |