Compare fares, departure times, stops and baggage details for this route, then open the full search when you are ready to check current availability and complete booking.
ICNCNXSat, 03 Oct
Fare checked before payment No hidden charges Transparent cancellation policy 24×7 booking support
Lowest fare₩380,795Thai Vietjet Air
Fastest5h 25mgate to gate
Options found92flights on this route
Find your flightICN → CNX
Available Flights & Fares
Compare fares, timings and baggage. Pick the flight that suits your trip.
Prices in KRW
92 flight options
Fares are checked again before payment.
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Fare RulesRefundable fare. Final rules are verified before booking.
Hong Kong Express Airways
UO-627
22:30
2026-10-03
Seoul (ICN)Incheon International
22H :10 M
1 Stop
HKG
· 15h 40m Hong Kong (HKG), Hong Kong
18:40
2026-10-04
Chiang Mai (CNX)Chiang Mai International
Refundable 4 Seat Left Economy
Check-in: 1 PiecesCabin: 1 Pieces
Type
Refundable
Fare Type
Publish
1 Pieces 1 Pieces
₩489,965
Flight DetailsICN to CNX - 22H :10 M
Baggage InfoCheck-in 1 Pieces - Cabin 1 Pieces
Fare RulesRefundable fare. Final rules are verified before booking.
Thai AirAsia
FD-678
12:05
2026-10-03
Seoul (ICN)Incheon International
8H :30 M
1 Stop
DMK
· 1h 35m Bangkok (DMK), Thailand
18:35
2026-10-03
Chiang Mai (CNX)Chiang Mai International
Non Refundable 2 Seat Left Economy
Check-in: 0 KGCabin: 7 KG
Type
Non Refundable
Fare Type
Xpress Value
0 KG 7 KG
₩492,163
Flight DetailsICN to CNX - 8H :30 M
Baggage InfoCheck-in 0 KG - Cabin 7 KG
Fare RulesNon-refundable fare. Final rules are verified before booking.
Type
Non Refundable
Fare Type
Premium Flex
20 KG 7 KG
₩730,383
Flight DetailsICN to CNX - 8H :30 M
Baggage InfoCheck-in 20 KG - Cabin 7 KG
Fare RulesNon-refundable fare. Final rules are verified before booking.
Thai AirAsia
FD-678
12:05
2026-10-03
Seoul (ICN)Incheon International
10H :45 M
1 Stop
DMK
· 3h 45m Bangkok (DMK), Thailand
20:50
2026-10-03
Chiang Mai (CNX)Chiang Mai International
Non Refundable 2 Seat Left Economy
Check-in: 0 KGCabin: 7 KG
Type
Non Refundable
Fare Type
Xpress Value
0 KG 7 KG
₩492,163
Flight DetailsICN to CNX - 10H :45 M
Baggage InfoCheck-in 0 KG - Cabin 7 KG
Fare RulesNon-refundable fare. Final rules are verified before booking.
Type
Non Refundable
Fare Type
Premium Flex
20 KG 7 KG
₩730,383
Flight DetailsICN to CNX - 10H :45 M
Baggage InfoCheck-in 20 KG - Cabin 7 KG
Fare RulesNon-refundable fare. Final rules are verified before booking.
No flights match the selected filters. Clear filters or open full search.
Today's Airfare Highlights
Selected flight highlights for 03 Oct 2026.
Lowest fare₩380,795Thai Vietjet Air12:10
Earliest departure₩834,764Malaysia Airlines00:10
Shortest duration₩979,071Korean Air Lines17:20
Night
00:00-05:59
₩499,574Cathay Pacific at 01:55Morning
06:00-11:59
₩391,572China Eastern at 07:45Afternoon
12:00-17:59
₩380,795Thai Vietjet Air at 12:10Evening
18:00-23:59
₩442,135JEJU AIR at 18:10
Departure & Arrival Airport Details
Seoul (ICN)
Incheon International
South Korea
GMT 9
Latitude: 37.46910095214844
Longitude: 126.45099639892578
Chiang Mai (CNX)
Chiang Mai International
Thailand
GMT 7
Latitude: 18.766799926799997
Longitude: 98.962600708
Distance: Seoul (ICN), South Korea to Chiang Mai (CNX), Thailand - 3,382.29 km
Flights shown for 03 Oct 2026. View all flights opens the complete search result.
Fares and hotel rates usually run higher around these dates. Booking earlier — or shifting a day or two — often costs less.
Busiest periods: Cool dry season — peak (01 Nov – 28 Feb), Songkran week (10 Apr – 17 Apr), New Year period (20 Dec – 05 Jan).
05DecKing Bhumibol Memorial DaySaturday · in 85 days
10DecConstitution DayThursday · in 90 days
01JanNew Year's DayFriday · in 112 days
Fixed-date national holidays. Festivals that follow the lunar calendar shift each year and are not listed here — check the exact date for your travel year.
Compare your journey
How to travel Seoul to Chiang Mai
Every option we can actually book for you, compared on price and journey time.
Connecting flight₹27,029Longer — includes a stop90 options
Air distance is about 3,382 km. 14 airlines operate this route.
Road distance and coach duration are approximate estimates from the air distance, not a timetable.
Airlines flying from Seoul to Chiang Mai
Compare fares, stops, baggage and refundability across the airlines flying this route.
TH
Thai Airways International Flights
from ₩657,20819 flights
Fares from
₩657,208
Non-stop
None in these results
Departures
19 — compare timings in the list above
CH
China Eastern Flights
from ₩391,57214 flights
Fares from
₩391,572
Non-stop
None in these results
Departures
14 — compare timings in the list above
CA
Cathay Pacific Flights
from ₩458,50613 flights
Fares from
₩458,506
Non-stop
None in these results
Departures
13 — compare timings in the list above
TH
Thai Vietjet Air Flights
from ₩380,7958 flights
Fares from
₩380,795
Non-stop
None in these results
Departures
8 — compare timings in the list above
HO
Hong Kong Express Airways Flights
from ₩489,9658 flights
Fares from
₩489,965
Non-stop
None in these results
Departures
8 — compare timings in the list above
Route Overview & Flight Facts
Fastest flight duration
5h 25m · Korean Air Lines
First departure of the day
00:10 · Malaysia Airlines
Last departure of the day
23:50 · Singapore Airlines
Options in this snapshot
92
Direct / non-stop options
2
Airport codes
Seoul–ICN, Chiang Mai–CNX
Fares and timings are indicative — the exact price is confirmed with the airline when you search.
Flight Schedule, Timings & Airfare Insights
Daily Flight Schedule & Travel Duration
Around 92 flights appear in the dated route snapshot, including 2 non-stop options. Departures run through the day — the first flight leaves around 00:10 and the last around 23:50. The fastest flight takes about 5h 25m.
Morning vs Evening Departure Fares
Lowest fare by departure window: Afternoon from ₩380,795, Morning from ₩391,572, Evening from ₩442,135, Night from ₩499,574. These observations do not predict the cheapest departure window on other dates.
Cheapest Airfare & Best Time to Book
Search your travel dates to compare current fares — prices update continuously with airline inventory.
One-Way vs Round-Trip Fare Comparison
Compare the complete cost and conditions of both options for your dates. A round-trip can have different fare and change rules from two one-way tickets. One booking may contain multiple airline PNRs; confirm baggage transfer and connection protection for separate tickets.
Online Web Check-In & Boarding Pass
Check the operating airline’s opening time and check-in deadline for each sector. Seat charges and availability depend on your fare. Use the airline reference and the links on Web Check-in.
How to Book Cheap Flights on FlyX
1
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2
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Sort or filter the Seoul–Chiang Mai results by price, departure time, stops and airline.
3
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4
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5
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Destination & City Travel Guide
About Seoul
Capital city of South Korea, Seoul is a metropolitan city, with a population of over 35 million. It is the largest city of the country and also considered as the financial and cultural epic center of the country. The reason behind the city's popularity is its age-old cultural heritage, traditions, blended perfectly with modern digital technology. There are many attractions which has made it a popular destination among the tourists all over the world. Some of them include the world class architecture, beautiful Buddhist temples, unusual education system, continuous row of street food vendors, and an extra-ordinary night-life. Seoul is a modern organized city, with beautiful locations and lots of arresting attractions. People can get in to the place through Lncheon International Airport, which is by far the most used way of travelling to the city. Other ways to travel are by train, bus, boat and car. While you plan to roam around the city, don't forget to carry a map and hire a taxi or car for the purpose.
Read more about Seoul
Visit and see different artistic palaces, mountains for hiking, parks for spending quality time with family, and temples and shrines to satisfy the spiritual desires. There are many other places like World Comic Convention, Namdaemun, Dongdaemun, Seodaemun Prison, N Seoul Tower, The National Museum of Korea, and National War Memorial that attract travellers across the world. One can also indulge themselves in cooking activities, as the Korean food is world renowned for its flavour and taste. When planning to shop, the tourists can turn to the local markets, and can also reach to the big marts and malls. One must not forget to visit the fashion hub of the city, i.e., 'Myeongdong'. You can shed your pockets in various clubs and can splurge freely on drinks and eatables. As far as the gentry is concerned, the Korean people are friendly by nature and can be often seen helping the tourists.
Don't leave any loop hole while you plan to travel to the city. With the help of FlyX.in, book tickets online and decide on the proper accommodation arrangements. One can also take help from the city guides to fetch detailed information about the city to be visited.
Why Book Your Flight with FlyX?
Compare the available Seoul to Chiang Mai options by total price, stops, baggage and fare conditions. Search your dates for current availability, then review traveller details and the final price before paying.
Payment confirmation and ticket issuance are separate steps. If your booking is awaiting a PNR or ticket, follow its status and contact FlyX support when you need help. Your issued ticket contains the airline reference and itinerary. Change and cancellation charges depend on the purchased fare and any separately disclosed service fee.
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Frequently Asked Questions
Is it worth booking Seoul to Chiang Mai flights in advance?
There is no guaranteed cheapest booking window. Compare your planned dates early, check nearby dates and consider baggage, connection time and change conditions as well as price. Across the dates currently loaded for Seoul to Chiang Mai, Saturday shows the lowest fare at ₩380,795. That is an observed snapshot for these dates, not a rule that holds every week.
How far is Seoul from Chiang Mai by air?
The direct air distance between Seoul (ICN) and Chiang Mai (CNX) is about 3,382 km. Actual flight time varies with the routing the airline files and with winds on the day.
Are there non-stop flights from ICN to CNX?
Yes. 2 non-stop flights are showing on Seoul to Chiang Mai for the dates currently loaded. Use the Stops filter to see only those.
Which airlines fly Seoul to Chiang Mai?
Thai Airways International, China Eastern, Cathay Pacific, Thai Vietjet Air and 1 other are showing on this route for the dates currently loaded. Fares, baggage allowance and refund rules differ by airline and by fare type, so compare the fare conditions and not only the headline price.
How long is the flight from Seoul to Chiang Mai?
The quickest non-stop Seoul to Chiang Mai flight currently loaded takes about 5h 25m. Across the non-stop options showing, block time ranges from 5h 25m to 5h 50m. Journeys with a stop take longer, since the total includes the layover.
What is the baggage allowance on Seoul to Chiang Mai flights?
Allowance is set by the airline and the fare you pick, not by the route. Fares showing right now include 20 KG, 2 Pieces and 1 Pieces. Cabin baggage is counted separately, and the exact allowance for the fare you choose is shown in the fare conditions before payment.
What is the cheapest Seoul to Chiang Mai flight fare?
The lowest fare showing on Seoul to Chiang Mai for the dates currently loaded is ₩380,795. Fares on the same dates run up to ₩1,881,699, depending on airline, timing and fare type. Airline pricing moves continuously, so treat this as a dated observation rather than a fixed price.
What time do Seoul to Chiang Mai flights depart?
For the dates currently loaded the first departure is around 00:10 and the last is around 23:50, local time at Seoul. Use the departure-time filter on the results above to narrow to a morning, afternoon or evening slot.
Why does the price change after clicking Book Now?
Airline seat inventory and fares change continuously. Selecting Book Now runs a live fare verification with the airline so the price you approve is the price you pay - if it has moved, you see the new figure before any payment.
Before you book this route
Check the airport codes ICN–CNX, local departure and arrival dates, and every connecting airport. Connections can have different document and baggage requirements from your final destination.
Where these fares come from
The fares, durations, stops and baggage shown here come from real airline search results for this route. They are examples for the dates on this page, not a full timetable and not a locked price — run a search to see what is available for your own dates.
Last checked .
Check official travel requirements
Confirm passport, visa and transit rules for your nationality and full itinerary with the relevant government and operating airline. IATA travel-document information explains why requirements vary.
Planning more than the flight? Our Thailand guide covers the visa process for Indian passport holders, best time to go, how long to plan for, and which places are worth the days you have. Beaches, Bangkok and easy short breaks.
The ICN to CNX cards above show selected flight options. Airline prices and seat availability can move quickly, so the final fare is rechecked in the booking flow.
Approx route distance: 3,382.29 km.
Before you book
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Lowest Seoul to Chiang Mai airfare today, in 30 days and in 90 days
Cheapest Fare
Fare
Date
Airline
Departure
Lowest Airfare Today
₩380,795
03/10/2026
Thai Vietjet Air
12:10
Cheapest Airfare Within 30 Days
₩373,173
11/10/2026
Thai Vietjet Air
12:10
Cheapest Airfare Within 90 Days
₩361,761
10/12/2026
Thai Vietjet Air
12:10
Book Seoul to Chiang Mai Flight Tickets on FlyX
Planning to fly from Seoul to Chiang Mai? FlyX lets you compare flight rates, airline timings, layovers, and baggage allowances all in one simple list. From quick non-stop routes to flexible connecting options, finding and booking cheap air tickets has never been easier.
Seoul to Chiang Mai Flight Distance, Duration and Time
The aerial distance between Seoul and Chiang Mai is approximately 3,382 KM. The flight duration ranges from 5H :25 M up to 31H :30 M depending on whether you book a non-stop flight or a connecting schedule with layovers.
Seoul to Chiang Mai Flight Schedule and Timing
Around 92 flights operate on this route, providing plenty of choices for your travel window. The earliest morning flight departs from Seoul at 00:10, while the last night flight leaves at 23:50. Flights depart from Incheon International and land at Chiang Mai International.
Flight Route Details & Analysis
Flight Details
Information
Route
Seoul to Chiang Mai
Aerial Distance
3,382 KM
Flight Duration
5H :25 M - 31H :30 M
Airport Codes
Seoul - ICN, Chiang Mai - CNX
Total Flights Available
92 flights (2 direct)
First Flight Departure
Departs at 00:10
Last Flight Departure
Departs at 23:50
Early Morning Flights (12 AM - 8 AM)
13 direct/indirect flights
Morning Flights (8 AM - 12 PM)
18 direct/indirect flights
Afternoon Flights (12 PM - 4 PM)
26 direct/indirect flights
Evening Flights (4 PM - 8 PM)
19 direct/indirect flights
Night Flights (8 PM - 12 AM)
16 direct/indirect flights
Airport Information & Terminals
ICN: Seoul airport system. Seoul international flights commonly use Incheon, while Gimpo handles many domestic and regional services. Airport rail works well; taxis are easier for late-night arrivals or heavy bags.
CNX: Chiang Mai airport. Chiang Mai airport may offer metro, rail, bus and taxi options. Choose public transport for daytime light-luggage arrivals; choose a cab or hotel transfer for family trips and late landings.
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Chiang Mai International
