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Cheap flights from Seoul to Chiang Mai from $107

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 3/8. 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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Find the cheapest flights from Seoul to Chiang Mai

Cheap round-trip flights

Enter your travel dates to find the best prices.
China Eastern Logo
4:40 pm - 9:05 am
ICN
-
CNX
18h 25m2 stops
China Eastern Logo
9:40 am - 10:55 am
CNX
-
ICN
23h 15m3 stops
$215China Eastern
Thu, Jan 22 - Thu, Feb 12
China Eastern Logo
2:20 pm - 9:05 am
ICN
-
CNX
20h 45m3 stops
China Eastern Logo
4:25 pm - 1:15 pm
CNX
-
ICN
18h 50m3 stops
$216China Eastern
Tue, Jan 27 - Tue, Feb 3
Air China Logo
2:40 pm - 9:50 pm
ICN
-
CNX
9h 10m1 stop
Air China Logo
11:05 pm - 9:55 pm
CNX
-
ICN
20h 50m1 stop
$231Air China
Sun, Jan 11 - Sun, Jan 18
Air China Logo
2:25 pm - 9:50 pm
GMP
-
CNX
9h 25m1 stop
Air China Logo
11:05 pm - 1:05 pm
CNX
-
GMP
12h 00m1 stop
$234Air China
Sun, Jan 11 - Sun, Jan 18
Multiple Airlines Logo
4:40 pm - 2:20 pm
ICN
-
CNX
23h 40m2 stops
Multiple Airlines Logo
7:40 pm - 10:05 am
CNX
-
ICN
12h 25m1 stop
$236Multiple Airlines
Thu, Jan 22 - Thu, Feb 12
China Eastern Logo
4:40 pm - 2:20 pm
ICN
-
CNX
23h 40m2 stops
China Eastern Logo
3:35 pm - 3:20 pm
CNX
-
ICN
21h 45m1 stop
$238China Eastern
Sun, Jan 11 - Sun, Jan 18
China Eastern Logo
4:40 pm - 2:20 pm
ICN
-
CNX
23h 40m2 stops
China Eastern Logo
10:05 am - 10:55 am
CNX
-
ICN
22h 50m3 stops
$240China Eastern
Sun, Jan 11 - Sun, Jan 18
Multiple Airlines Logo
5:55 pm - 8:40 am
ICN
-
CNX
16h 45m1 stop
Multiple Airlines Logo
9:20 pm - 10:05 am
CNX
-
ICN
10h 45m1 stop
$245Multiple Airlines
Thu, Jan 22 - Thu, Feb 12
China Eastern Logo
2:20 pm - 9:05 am
ICN
-
CNX
20h 45m3 stops
China Eastern Logo
10:05 am - 10:55 am
CNX
-
ICN
22h 50m3 stops
$248China Eastern
Sun, Jan 11 - Sun, Jan 18
Air China Logo
2:25 pm - 9:50 pm
GMP
-
CNX
9h 25m1 stop
Air China Logo
11:05 pm - 1:05 pm
CNX
-
GMP
12h 00m1 stop
$289Air China
Tue, Mar 3 - Sat, Mar 7

China Eastern flights from Seoul to Chiang Mai

Our best China Eastern deals on Seoul to Chiang Mai flight tickets
China Eastern
Jan 22
ICN4:40 pmIncheon Intl
18h 25m
2 stops
CNX9:05 amChiang Mai
Feb 12
CNX9:40 amChiang Mai
23h 15m
3 stops
ICN10:55 amIncheon Intl
$215
Find similar
China Eastern
Jan 27
ICN2:20 pmIncheon Intl
20h 45m
3 stops
CNX9:05 amChiang Mai
Feb 3
CNX4:25 pmChiang Mai
18h 50m
3 stops
ICN1:15 pmIncheon Intl
$216
Find similar
China Eastern
Jan 11
ICN4:40 pmIncheon Intl
23h 40m
2 stops
CNX2:20 pmChiang Mai
Jan 18
CNX3:35 pmChiang Mai
21h 45m
1 stop
ICN3:20 pmIncheon Intl
$238
Find similar

Air China flights from Seoul to Chiang Mai

Our best Air China deals on Seoul to Chiang Mai flight tickets
Air China
Jan 11
ICN2:40 pmIncheon Intl
9h 10m
1 stop
CNX9:50 pmChiang Mai
Jan 18
CNX11:05 pmChiang Mai
20h 50m
1 stop
ICN9:55 pmIncheon Intl
$231
Find similar
Air China
Jan 11
GMP2:25 pmSeoul Gimpo Intl
9h 25m
1 stop
CNX9:50 pmChiang Mai
Jan 18
CNX11:05 pmChiang Mai
12h 00m
1 stop
GMP1:05 pmSeoul Gimpo Intl
$234
Find similar
Air China
Mar 3
GMP2:25 pmSeoul Gimpo Intl
9h 25m
1 stop
CNX9:50 pmChiang Mai
Mar 7
CNX11:05 pmChiang Mai
12h 00m
1 stop
GMP1:05 pmSeoul Gimpo Intl
$289
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 15, 2025.
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

Price

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Thu 1/22

4:40 pm-9:05 am

2 stops18h 25m

Chiang Mai

Thu 2/12

9:40 am-10:55 am

3 stops23h 15m

$215

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Tue 1/27

2:20 pm-9:05 am

3 stops20h 45m

Chiang Mai

Tue 2/3

4:25 pm-1:15 pm

3 stops18h 50m

$216

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Sun 1/11

2:40 pm-9:50 pm

1 stop9h 10m

Chiang Mai

Sun 1/18

11:05 pm-9:55 pm

1 stop20h 50m

$231

SeoulChiang Mai

GMP - CNX

GMPCNX

Seoul Gimpo Intl

Sun 1/11

2:25 pm-9:50 pm

1 stop9h 25m

Chiang Mai

Sun 1/18

11:05 pm-1:05 pm

1 stop12h 00m

$234

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Thu 1/22

4:40 pm-2:20 pm

2 stops23h 40m

Chiang Mai

Thu 2/12

7:40 pm-10:05 am

1 stop12h 25m

$236

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Sun 1/11

4:40 pm-2:20 pm

2 stops23h 40m

Chiang Mai

Sun 1/18

3:35 pm-3:20 pm

1 stop21h 45m

$238

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Sun 1/11

4:40 pm-2:20 pm

2 stops23h 40m

Chiang Mai

Sun 1/18

10:05 am-10:55 am

3 stops22h 50m

$240

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Thu 1/22

5:55 pm-8:40 am

1 stop16h 45m

Chiang Mai

Thu 2/12

9:20 pm-10:05 am

1 stop10h 45m

$245

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Sun 1/11

2:20 pm-9:05 am

3 stops20h 45m

Chiang Mai

Sun 1/18

10:05 am-10:55 am

3 stops22h 50m

$248

SeoulChiang Mai

GMP - CNX

GMPCNX

Seoul Gimpo Intl

Tue 3/3

2:25 pm-9:50 pm

1 stop9h 25m

Chiang Mai

Sat 3/7

11:05 pm-1:05 pm

1 stop12h 00m

$289

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chiang Mai from

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

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 June, then you should wait until March to fly from Seoul, when ticket prices are also cheap, with an average price of $214.

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 Monday, the most expensive travel day of the week, you can expect to see flight prices from Seoul to Chiang Mai for around $400.

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

Flying to Chiang Mai from Seoul in the evening is the least expensive time of day to depart. momondo users have found prices as low as $346 when looking at flights departing in the evening. Flights to Chiang Mai are more costly in the morning, with an average ticket price of $368. Departure times in the morning 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 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 $290 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 $241 on momondo.

What cabin class options are available on Seoul to Chiang Mai flights?

There are 2 cabin classes available to choose from on Seoul to Chiang Mai flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

No. A direct flight is the cheapest option for a flight between Seoul to Chiang Mai.

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

As of December 2025, prices for Seoul to Chiang Mai flights are approximately 34% 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

$173

Fastest flight time

6h 00m

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 $173. The best round-trip flight deal from Seoul to Chiang Mai found on momondo in the last 72 hours is $315.
The fastest flight from Seoul to Chiang Mai takes 6h 00m
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

  • 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 6h 00m, 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?

  • 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?

  • What is the most popular airline 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
Airline
Rating
Free Cancellation
Price
Jeju AirPriceFrom $140Free CancellationRating
7.6
36 reviews
Search Jeju Air flights
Jin AirPriceFrom $204Free CancellationRating
0.0
0 reviews
Search Jin Air flights
Eastar JetPriceFrom $222Free CancellationRating
0.0
0 reviews
Search Eastar Jet flights
Asiana AirlinesPriceFrom $255Free CancellationRating
8.2
493 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $330Free CancellationRating
8.4
1,186 reviews
Search Korean Air flights

  • Korean Air Flights From Seoul to Chiang Mai

    Across 12 Korean Air flights from Seoul to Chiang Mai this week, the average price was $486, with the best Korean Air deals starting from $330 round-trip. 1,186 users have rated Korean Air on momondo, with an average score of 8.4/10.

  • Jeju Air Flights From Seoul to Chiang Mai

    Jeju Air is also a popular choice for this route. Jeju Air flight deals for Seoul to Chiang Mai start from as low as $140 round-trip, depending on your selected dates, with average Jeju Air deals seen on momondo around $282. Jeju Air operates 5 flights to Chiang Mai from Seoul in an average week. Users have rated it 7.6/10 across 36 reviews.

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.

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