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Cheap flights from Seoul to Chiang Mai from $83

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 9/25. 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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Cheap round-trip flights

Jeju Air Logo
6:00 pm - 9:35 pmICN-CNX
5h 35mnonstop
Jeju Air Logo
10:35 pm - 5:50 amCNX-ICN
5h 15mnonstop
$196Jeju Air
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Thu, Oct 9 - Thu, Oct 16
Jeju Air Logo
6:00 pm - 9:35 pmICN-CNX
5h 35mnonstop
Jeju Air Logo
10:35 pm - 5:50 amCNX-ICN
5h 15mnonstop
$207Jeju Air
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Thu, Oct 16 - Mon, Oct 20
Logo
8:05 pm - 9:50 amICN-CNX
15h 45m1 stop
Logo
2:10 pm - 8:40 amCNX-ICN
16h 30m1 stop
$215
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Sat, Sep 27 - Tue, Sep 30
Logo
5:10 pm - 8:45 pmICN-CNX
5h 35mnonstop
Logo
11:30 pm - 10:20 amCNX-ICN
8h 50m1 stop
$221
Find Deal
Thu, Oct 9 - Sat, Oct 18
Jin Air Logo
5:10 pm - 8:45 pmICN-CNX
5h 35mnonstop
Jin Air Logo
9:45 pm - 5:05 amCNX-ICN
5h 20mnonstop
$225Jin Air
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Mon, Sep 22 - Sun, Sep 28
Jin Air Logo
5:10 pm - 8:45 pmICN-CNX
5h 35mnonstop
Jin Air Logo
9:45 pm - 5:05 amCNX-ICN
5h 20mnonstop
$236Jin Air
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Sun, Sep 28 - Fri, Oct 3
Air China Logo
2:25 pm - 9:50 pmGMP-CNX
9h 25m1 stop
Air China Logo
11:05 pm - 1:05 pmCNX-GMP
12h 00m1 stop
$302Air China
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Fri, Oct 24 - Fri, Oct 31
Air China Logo
2:25 pm - 9:50 pmGMP-CNX
9h 25m1 stop
Air China Logo
11:05 pm - 1:05 pmCNX-GMP
12h 00m1 stop
$307Air China
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Sun, Oct 26 - Sun, Nov 2
China Eastern Logo
8:50 pm - 2:20 pmGMP-CNX
19h 30m1 stop
China Eastern Logo
10:05 am - 11:00 amCNX-GMP
22h 55m2 stops
$383China Eastern
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Wed, Nov 12 - Mon, Nov 17
China Eastern Logo
8:50 pm - 2:20 pmGMP-CNX
19h 30m1 stop
China Eastern Logo
4:25 pm - 11:00 amCNX-GMP
16h 35m2 stops
$384China Eastern
Find Deal
Fri, Nov 28 - Tue, Dec 2

China Eastern flights from Seoul to Chiang Mai

Our best China Eastern deals on Seoul to Chiang Mai flight tickets
China Eastern
Sep 16
ICN2:15 pmIncheon Intl
20h 50m
3 stops
CNX9:05 amChiang Mai
Sep 23
CNX4:20 pmChiang Mai
21h 00m
2 stops
ICN3:20 pmIncheon Intl
$293
Find similar
China Eastern
Sep 18
ICN8:15 pmIncheon Intl
21h 05m
2 stops
CNX3:20 pmChiang Mai
Sep 22
CNX2:55 pmChiang Mai
22h 30m
1 stop
ICN3:25 pmIncheon Intl
$308
Find similar
China Eastern
Sep 18
ICN8:15 pmIncheon Intl
21h 05m
2 stops
CNX3:20 pmChiang Mai
Sep 22
CNX4:20 pmChiang Mai
16h 55m
2 stops
ICN11:15 amIncheon Intl
$313
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EVA Air flights from Seoul to Chiang Mai

Our best EVA Air deals on Seoul to Chiang Mai flight tickets
EVA Air
Sep 24
GMP8:20 pmSeoul Gimpo Intl
16h 05m
1 stop
CNX10:25 amChiang Mai
Sep 29
CNX9:10 pmChiang Mai
19h 00m
2 stops
GMP6:10 pmSeoul Gimpo Intl
$484
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EVA Air
Nov 28
GMP1:50 pmSeoul Gimpo Intl
23h 30m
2 stops
CNX11:20 amChiang Mai
Dec 2
CNX7:45 pmChiang Mai
21h 30m
2 stops
GMP7:15 pmSeoul Gimpo Intl
$518
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EVA Air
Nov 21
GMP1:50 pmSeoul Gimpo Intl
23h 30m
2 stops
CNX11:20 amChiang Mai
Nov 25
CNX7:45 pmChiang Mai
21h 30m
2 stops
GMP7:15 pmSeoul Gimpo Intl
$539
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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 September 11, 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 10/9

6:00 pm-9:35 pm

Nonstop5h 35m

Chiang Mai

Thu 10/16

10:35 pm-5:50 am

Nonstop5h 15m

$196

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Thu 10/16

6:00 pm-9:35 pm

Nonstop5h 35m

Chiang Mai

Mon 10/20

10:35 pm-5:50 am

Nonstop5h 15m

$207

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Sat 9/27

8:05 pm-9:50 am

1 stop15h 45m

Chiang Mai

Tue 9/30

2:10 pm-8:40 am

1 stop16h 30m

$215

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Thu 10/9

5:10 pm-8:45 pm

Nonstop5h 35m

Chiang Mai

Sat 10/18

11:30 pm-10:20 am

1 stop8h 50m

$221

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Mon 9/22

5:10 pm-8:45 pm

Nonstop5h 35m

Chiang Mai

Sun 9/28

9:45 pm-5:05 am

Nonstop5h 20m

$225

IncheonChiang Mai

ICN - CNX

ICNCNX

Incheon Intl

Sun 9/28

5:10 pm-8:45 pm

Nonstop5h 35m

Chiang Mai

Fri 10/3

9:45 pm-5:05 am

Nonstop5h 20m

$236

SeoulChiang Mai

GMP - CNX

GMPCNX

Seoul Gimpo Intl

Fri 10/24

2:25 pm-9:50 pm

1 stop9h 25m

Chiang Mai

Fri 10/31

11:05 pm-1:05 pm

1 stop12h 00m

$302

SeoulChiang Mai

GMP - CNX

GMPCNX

Seoul Gimpo Intl

Sun 10/26

2:25 pm-9:50 pm

1 stop9h 25m

Chiang Mai

Sun 11/2

11:05 pm-1:05 pm

1 stop12h 00m

$307

SeoulChiang Mai

GMP - CNX

GMPCNX

Seoul Gimpo Intl

Wed 11/12

8:50 pm-2:20 pm

1 stop19h 30m

Chiang Mai

Mon 11/17

10:05 am-11:00 am

2 stops22h 55m

$383

SeoulChiang Mai

GMP - CNX

GMPCNX

Seoul Gimpo Intl

Fri 11/28

8:50 pm-2:20 pm

1 stop19h 30m

Chiang Mai

Tue 12/2

4:25 pm-11:00 am

2 stops16h 35m

$384

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 $221.

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 $328. 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 $453.

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 $355 when looking at flights departing in the evening. Flights to Chiang Mai are more costly in the morning, with an average ticket price of $614. 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 $277 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 $265 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 September 2025, prices for Seoul to Chiang Mai flights are approximately 32% 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

$104

Fastest flight time

5h 25m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Chiang Mai

1 airport
The best one-way flight to Chiang Mai from Seoul in the past 72 hours is $104. The best round-trip flight deal from Seoul to Chiang Mai found on momondo in the last 72 hours is $294.
The fastest flight from Seoul to Chiang Mai takes 5h 25m
Direct flights go from Seoul to Chiang Mai on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport near Chiang Mai: 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 5h 35m, 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
Eastar JetPriceFrom $122Free CancellationRating
10.0
2 reviews
Search Eastar Jet flights
Jeju AirPriceFrom $169Free CancellationRating
7.7
33 reviews
Search Jeju Air flights
Jin AirPriceFrom $194Free CancellationRating
8.7
20 reviews
Search Jin Air flights
Asiana AirlinesPriceFrom $273Free CancellationRating
8.2
479 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $319Free CancellationRating
8.4
1,139 reviews
Search Korean Air flights

  • Eastar Jet Flights From Seoul to Chiang Mai

    Across 4 Eastar Jet flights from Seoul to Chiang Mai this week, the average price was $294, with the best Eastar Jet deals starting from $122 round-trip. 2 users have rated Eastar Jet on momondo, with an average score of 10.0/10.

  • Jin Air Flights From Seoul to Chiang Mai

    Jin Air is also a popular choice for this route. Jin Air flight deals for Seoul to Chiang Mai start from as low as $194 round-trip, depending on your selected dates, with average Jin Air deals seen on momondo around $356. Jin Air operates 7 flights to Chiang Mai from Seoul in an average week. Users have rated it 8.7/10 across 20 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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