How long does it take to fly to Chiang Mai?

On average, it takes 8h 50m to fly from Seoul to Chiang Mai if you fly out of Seoul (the most popular airport in Seoul) and into Chiang Mai (the most popular airport in Chiang Mai). If you’re flying out of Incheon and into Chiang Mai, then the flight time is around 22h 50m.

What is the cheapest airline that flies from Seoul to Chiang Mai?

Jin Air and China Eastern are the most popular carriers operating from Seoul to Chiang Mai

Which layover airport has the shortest travel time from Seoul to Chiang Mai?

Flights connecting via Bangkok (BKK) have the shortest average one-way travel time: 8h 50m.

How many flights depart from Seoul to Chiang Mai on average per day?

As of May 2026, 1 flights take off from Seoul and land in Chiang Mai each day. The most common flight departure time for this route is 6:00PM, with 100% of daily flights taking off in the evening.

Which layover airport offers the lowest fares from Seoul to Chiang Mai?

Flights via Kuala Lumpur (KUL) offer the lowest average round-trip price of $345.

Which airport is the most popular layover for flights between Seoul and Chiang Mai?

Kuala Lumpur (KUL) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

How many flights depart from Seoul to Chiang Mai on average per week?

11 flights are operational weekly from Seoul to Chiang Mai as of May 2026. The most popular departure day for this route is Wed, with 27% of flights per week taking off on this day.

What airlines fly to Chiang Mai?

Jin Air, Jeju Air and Korean Air are the top three most popular airlines that fly to Chiang Mai from Seoul according to our data. Jin Air is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Chiang Mai. Keep in mind that there are 5 different airlines that fly to Chiang Mai on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from Seoul to Chiang Mai?

Bangkok (BKK) has the shortest average layover time for this route: 1h 20m.

When did momondo last update prices for flights from Seoul to Chiang Mai Airport?

Prices for flights from Seoul to Chiang Mai Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Seoul to Chiang Mai Airport?

The number of operators available for flights from Seoul to Chiang Mai Airport is 5 as of May 2026.

How old do you have to be to fly from Seoul to Chiang Mai Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seoul to Chiang Mai Airport.

What documentation or ID do you need to fly to Chiang Mai Airport?

The travel and health documents you'll need for your trip to Chiang Mai Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chiang Mai Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$138 Cheap Flights from Seoul to Chiang Mai in 2026

Q: What is the typical price of a round-trip flight between Seoul and Chiang Mai?

Prices are currently low for flights on this route. Typical prices usually range from $318 to $214. The lowest price recently found on this route was $307.

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Find the cheapest flights from Seoul to Chiang Mai

Round-trip

One-way

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Enter your travel dates to find the best prices.

2:30 pm - 1:25 pm

ICN

CNX

24h 55m

1 stop

2:55 pm - 5:25 pm

CNX

ICN

24h 30m

1 stop

$307China Eastern

Sun, Jun 7 - Sun, Jun 14

8:15 pm - 3:20 pm

ICN

CNX

21h 05m

2 stops

2:55 pm - 3:10 pm

CNX

ICN

22h 15m

1 stop

$315China Eastern

Wed, Jun 3 - Sat, Jun 6

2:30 pm - 1:25 pm

ICN

CNX

24h 55m

1 stop

4:10 pm - 10:45 pm

CNX

ICN

28h 35m

1 stop

$319China Eastern

Sun, Jun 7 - Thu, Jun 11

2:30 pm - 1:25 pm

ICN

CNX

24h 55m

1 stop

4:10 pm - 10:55 am

CNX

ICN

16h 45m

2 stops

$322China Eastern

Sun, Jun 7 - Thu, Jun 11

2:30 pm - 1:25 pm

ICN

CNX

24h 55m

1 stop

4:10 pm - 10:55 am

CNX

ICN

16h 45m

2 stops

$324China Eastern

Sun, Jun 7 - Sun, Jun 14

8:15 pm - 1:25 pm

ICN

CNX

19h 10m

2 stops

4:10 pm - 10:45 pm

CNX

ICN

28h 35m

1 stop

$330China Eastern

Thu, Jun 4 - Thu, Jun 11

4:35 pm - 9:15 am

ICN

CNX

18h 40m

2 stops

10:05 am - 10:45 pm

CNX

ICN

10h 40m

1 stop

$331China Eastern

Fri, Sep 4 - Mon, Sep 7

4:20 pm - 1:25 pm

ICN

CNX

23h 05m

1 stop

4:10 pm - 2:55 pm

CNX

ICN

20h 45m

2 stops

$332China Eastern

Tue, Jun 9 - Fri, Jun 12

2:25 pm - 9:50 pm

GMP

CNX

9h 25m

1 stop

11:05 pm - 1:05 pm

CNX

GMP

12h 00m

1 stop

$506Air China

Mon, Sep 14 - Mon, Oct 19

2:25 pm - 9:50 pm

GMP

CNX

9h 25m

1 stop

11:05 pm - 1:05 pm

CNX

GMP

12h 00m

1 stop

$527Air China

Sat, Sep 12 - Mon, Oct 19

China Eastern flights from Seoul to Chiang Mai

Our best China Eastern deals on Seoul to Chiang Mai flight tickets

China Eastern

Jun 7

ICN2:30 pmIncheon Intl

24h 55m

1 stop

CNX1:25 pmChiang Mai

Jun 14

CNX2:55 pmChiang Mai

24h 30m

1 stop

ICN5:25 pmIncheon Intl

$307

China Eastern

Jun 3

ICN8:15 pmIncheon Intl

21h 05m

2 stops

CNX3:20 pmChiang Mai

Jun 6

CNX2:55 pmChiang Mai

22h 15m

1 stop

ICN3:10 pmIncheon Intl

$315

China Eastern

May 18

ICN12:55 pmIncheon Intl

26h 30m

1 stop

CNX1:25 pmChiang Mai

May 22

CNX2:55 pmChiang Mai

24h 30m

1 stop

ICN5:25 pmIncheon Intl

$317

Jeju Air flights from Seoul to Chiang Mai

Our best Jeju Air deals on Seoul to Chiang Mai flight tickets

Jeju Air

May 17

ICN6:10 pmIncheon Intl

5h 50m

CNX10:00 pmChiang Mai

May 24

CNX11:00 pmChiang Mai

5h 30m

ICN6:30 amIncheon Intl

$338

Jeju Air

May 17

ICN6:10 pmIncheon Intl

5h 50m

CNX10:00 pmChiang Mai

May 24

CNX11:00 pmChiang Mai

5h 30m

ICN6:30 amIncheon Intl

$352

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Sun 6/7

2:30 pm-1:25 pm

1 stop24h 55m

Chiang Mai

Sun 6/14

2:55 pm-5:25 pm

1 stop24h 30m

$307

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Wed 6/3

8:15 pm-3:20 pm

2 stops21h 05m

Chiang Mai

Sat 6/6

2:55 pm-3:10 pm

1 stop22h 15m

$315

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Sun 6/7

2:30 pm-1:25 pm

1 stop24h 55m

Chiang Mai

Thu 6/11

4:10 pm-10:45 pm

1 stop28h 35m

$319

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Sun 6/7

2:30 pm-1:25 pm

1 stop24h 55m

Chiang Mai

Thu 6/11

4:10 pm-10:55 am

2 stops16h 45m

$322

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Sun 6/7

2:30 pm-1:25 pm

1 stop24h 55m

Chiang Mai

Sun 6/14

4:10 pm-10:55 am

2 stops16h 45m

$324

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Thu 6/4

8:15 pm-1:25 pm

2 stops19h 10m

Chiang Mai

Thu 6/11

4:10 pm-10:45 pm

1 stop28h 35m

$330

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Fri 9/4

4:35 pm-9:15 am

2 stops18h 40m

Chiang Mai

Mon 9/7

10:05 am-10:45 pm

1 stop10h 40m

$331

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Tue 6/9

4:20 pm-1:25 pm

1 stop23h 05m

Chiang Mai

Fri 6/12

4:10 pm-2:55 pm

2 stops20h 45m

$332

Quickest round-trip

SeoulChiang Mai

GMP - CNX

GMPCNX

Seoul Gimpo Intl

Mon 9/14

2:25 pm-9:50 pm

1 stop9h 25m

Chiang Mai

Mon 10/19

11:05 pm-1:05 pm

1 stop12h 00m

$506

SeoulChiang Mai

GMP - CNX

GMPCNX

Seoul Gimpo Intl

Sat 9/12

2:25 pm-9:50 pm

1 stop9h 25m

Chiang Mai

Mon 10/19

11:05 pm-1:05 pm

1 stop12h 00m

$527

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seoul to Chiang Mai

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

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Other information

What is the typical price of a round-trip flight between Seoul and Chiang Mai?

What is the cheapest month to fly to Chiang Mai?

If you don’t want to visit Chiang Mai in March, then you should wait until May to fly from Seoul, when ticket prices are also cheap, with an average price of $163.

What is the cheapest day to depart on your flight to Chiang Mai?

The cheapest day to depart from Seoul to Chiang Mai is on a Friday. Travelers who choose to depart for Chiang Mai on a Friday will often find tickets for as low as $334. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Seoul to Chiang Mai for around $450.

What is the cheapest time of day to depart on your flight to Chiang Mai?

Flying to Chiang Mai from Seoul in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $380 when looking at flights departing in the afternoon. Flights to Chiang Mai are more costly in the evening, with an average ticket price of $388. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Seoul to Chiang Mai flight route?

Fly from Incheon Intl to Chiang Mai for the best Seoul - Chiang Mai flight prices

How far in advance should I book a flight from Seoul to Chiang Mai?

You are more likely to see cheaper flights to Chiang Mai from Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to Chiang Mai for around $304 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chiang Mai from Seoul for as low as $266 on momondo.

Can stopping save me money on Seoul to Chiang Mai flights?

You could potentially save up to 32% on your flight if you consider stops on a Seoul to Chiang Mai flight.

How have Seoul to Chiang Mai flight prices changed over time?

As of May 2026, prices for Seoul to Chiang Mai flights are approximately 23% cheaper when compared to flights at the same time last year.

When to book flights from Seoul to Chiang Mai

Are you open to changing your travel dates? Check out the ideal times to fly from Seoul to Chiang Mai according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seoul to Chiang Mai (SEL to CNX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seoul to Chiang Mai

Best Price Found	$255
Fastest flight time	8h 50m
Direct flights	Every day
Airports in Chiang Mai	1 airport

The best one-way flight to Chiang Mai from Seoul in the past 72 hours is $255. The best round-trip flight deal from Seoul to Chiang Mai found on momondo in the last 72 hours is $426.

The fastest flight from Seoul to Chiang Mai takes 8h 50m

Direct flights go from Seoul to Chiang Mai every day.

There is 1 airport in Chiang Mai. From Seoul there are direct flights to Chiang Mai (CNX).

Search flight deals

Frequently asked questions about flying from Seoul to Chiang Mai

How far is Seoul to Chiang Mai by plane?
The straight-line distance from Seoul to Chiang Mai is 2126.4 mi. Flights usually cover this in 8h 50m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Seoul to Chiang Mai Airport?
Prices for flights from Seoul to Chiang Mai Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Seoul to Chiang Mai Airport?
The number of operators available for flights from Seoul to Chiang Mai Airport is 5 as of May 2026.
How old do you have to be to fly from Seoul to Chiang Mai Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seoul to Chiang Mai Airport.
What documentation or ID do you need to fly to Chiang Mai Airport?
The travel and health documents you'll need for your trip to Chiang Mai Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chiang Mai Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seoul to Chiang Mai?
momondo data reveals that the most frequently booked plane model on the route from Seoul to Chiang Mai is Boeing 737 MAX 8, representing 41.91% of all bookings. The subsequent popular models are Boeing 737-800 at 35.07%, Airbus A330-300 at 12.84%, and Airbus A321-100/200 at 7.83%.
What is the most popular airline from Seoul to Chiang Mai?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seoul to Chiang Mai is Jeju Air (38% of total bookings). The next most popular airlines are Jin Air (30%), T'way Air (18%), and Eastar Jet (14%).

Best airlines flying from Seoul to Chiang Mai

Compare and see reviews for airlines that fly from Seoul to Chiang Mai with momondo

Airline	Rating	Free Cancellation	Price
Jeju Air	PriceFrom $105	Free Cancellation	Rating 7.6 38 reviews	Search Jeju Air flights
Jin Air	PriceFrom $204	Free Cancellation	Rating 0.0 0 reviews	Search Jin Air flights
Eastar Jet	PriceFrom $252	Free Cancellation	Rating 0.0 0 reviews	Search Eastar Jet flights
Asiana Airlines	PriceFrom $296	Free Cancellation	Rating 8.1 532 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom $371	Free Cancellation	Rating 8.4 1,217 reviews	Search Korean Air flights

Jeju Air Flights From Seoul to Chiang Mai
Across 3 Jeju Air flights from Seoul to Chiang Mai this week, the average price was $355, with the best Jeju Air deals starting from $105 round-trip. 38 users have rated Jeju Air on momondo, with an average score of 7.6/10.

Why use momondo?

Why should I use momondo to find a flight deal from Seoul to Chiang Mai?

Finding the right flight to Chiang Mai from Seoul is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chiang Mai quick and easy, saving you time and money.

Can I find flights from Seoul to Chiang Mai with flexible booking policies on momondo?

Flights from Seoul to Chiang Mai with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seoul to Chiang Mai?

Once all potential Seoul to Chiang Mai flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seoul to Chiang Mai right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seoul to Chiang Mai flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Chiang Mai trip

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Cheap flights from Seoul to Chiang Mai from $138

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul to Chiang Mai departing on 5/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Seoul to Chiang Mai

What is the typical price of a round-trip flight between Seoul and Chiang Mai?

What is the cheapest month to fly to Chiang Mai?

What is the cheapest day to depart on your flight to Chiang Mai?

What is the cheapest time of day to depart on your flight to Chiang Mai?

What is the cheapest Seoul to Chiang Mai flight route?

How far in advance should I book a flight from Seoul to Chiang Mai?

Can stopping save me money on Seoul to Chiang Mai flights?

How have Seoul to Chiang Mai flight prices changed over time?

What is the cheapest airline that flies from Seoul to Chiang Mai?

What airlines fly to Chiang Mai?

Which airport is the most popular layover for flights between Seoul and Chiang Mai?

Which layover airport offers the lowest fares from Seoul to Chiang Mai?

Which layover airport has the shortest travel time from Seoul to Chiang Mai?

Which layover airport has the shortest connection time from Seoul to Chiang Mai?

How many flights depart from Seoul to Chiang Mai on average per day?

How many flights depart from Seoul to Chiang Mai on average per week?

How long does it take to fly to Chiang Mai?

When to book flights from Seoul to Chiang Mai

Cheap Seoul to Chiang Mai (SEL to CNX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seoul to Chiang Mai

Best Price Found

Fastest flight time

Direct flights

Airports in Chiang Mai

Frequently asked questions about flying from Seoul to Chiang Mai

Best airlines flying from Seoul to Chiang Mai

Compare and see reviews for airlines that fly from Seoul to Chiang Mai with momondo

Jeju Air Flights From Seoul to Chiang Mai

Why use momondo?

An easier way to manage your Chiang Mai trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Thailand

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Fly your favorite airline to Chiang Mai

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in Chiang Mai. Availability may vary depending on flight origin and airline.

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