Cheap flights from Chiang Mai to Seoul

Compare Chiang Mai to Seoul flight deals

Find the cheapest month or even day of the year to fly to Seoul

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Flight deals from Chiang Mai to Seoul

Looking for a cheap last-minute deal or the best return flight from Chiang Mai Airport to Seoul? If you want to travel next month, return fares start from P13,364. Find the lowest prices on one-way and return tickets right here.

Seoul.P6,973 per passenger.Departing Sat, 30 May.One-way flight with Thai VietJet Air.Outbound indirect flight with Thai VietJet Air, departs from Chiang Mai on Sat, 30 May, arriving in Gimpo International.Price includes taxes and charges.From P6,973, select.

Seoul.P7,387 per passenger.Departing Thu, 4 Jun.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Mai on Thu, 4 Jun, arriving in Incheon International.Price includes taxes and charges.From P7,387, select.

Seoul.P7,898 per passenger.Departing Sat, 25 Apr.One-way flight with Eastar Jet.Outbound direct flight with Eastar Jet departs from Chiang Mai on Sat, 25 Apr, arriving in Incheon International.Price includes taxes and charges.From P7,898, select.

Seoul.P8,485 per passenger.Departing Thu, 19 Nov.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Mai on Thu, 19 Nov, arriving in Incheon International.Price includes taxes and charges.From P8,485, select.

Seoul.P8,611 per passenger.Departing Sun, 3 May.One-way flight with Jeju Air.Outbound direct flight with Jeju Air departs from Chiang Mai on Sun, 3 May, arriving in Incheon International.Price includes taxes and charges.From P8,611, select.

Seoul.P8,669 per passenger.Departing Thu, 18 Mar.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Mai on Thu, 18 Mar, arriving in Incheon International.Price includes taxes and charges.From P8,669, select.

Seoul.P8,768 per passenger.Departing Wed, 20 Jan.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Mai on Wed, 20 Jan, arriving in Incheon International.Price includes taxes and charges.From P8,768, select.

Seoul.P8,770 per passenger.Departing Wed, 1 Jul.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Mai on Wed, 1 Jul, arriving in Incheon International.Price includes taxes and charges.From P8,770, select.

Seoul.P8,770 per passenger.Departing Sat, 3 Oct.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Mai on Sat, 3 Oct, arriving in Incheon International.Price includes taxes and charges.From P8,770, select.

Seoul.P8,770 per passenger.Departing Tue, 2 Feb.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Mai on Tue, 2 Feb, arriving in Incheon International.Price includes taxes and charges.From P8,770, select.

Seoul.P8,809 per passenger.Departing Sun, 28 Jun.One-way flight with Air Busan.Outbound direct flight with Air Busan departs from Chiang Mai on Sun, 28 Jun, arriving in Incheon International.Price includes taxes and charges.From P8,809, select.

Seoul.P9,429 per passenger.Departing Wed, 16 Sep.One-way flight with Eastar Jet.Outbound direct flight with Eastar Jet departs from Chiang Mai on Wed, 16 Sep, arriving in Incheon International.Price includes taxes and charges.From P9,429, select.

Seoul.P9,561 per passenger.Departing Tue, 15 Dec.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Mai on Tue, 15 Dec, arriving in Incheon International.Price includes taxes and charges.From P9,561, select.

Seoul.P10,042 per passenger.Departing Thu, 9 Jul.One-way flight with Eastar Jet.Outbound direct flight with Eastar Jet departs from Chiang Mai on Thu, 9 Jul, arriving in Incheon International.Price includes taxes and charges.From P10,042, select.

Seoul.P10,649 per passenger.Departing Thu, 22 Oct.One-way flight with Eastar Jet.Outbound direct flight with Eastar Jet departs from Chiang Mai on Thu, 22 Oct, arriving in Incheon International.Price includes taxes and charges.From P10,649, select.

Seoul.P12,271 per passenger.Departing Sun, 30 Aug.One-way flight with Eastar Jet.Outbound direct flight with Eastar Jet departs from Chiang Mai on Sun, 30 Aug, arriving in Incheon International.Price includes taxes and charges.From P12,271, select.

Find the cheapest month to fly from Chiang Mai to Seoul

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chiang Mai to Seoul flights are currently cheapest in May.

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Direct flights from Chiang Mai to Seoul

Alternative Chiang Mai to Seoul routes

Looking for the cheapest, fastest or easiest route from Chiang Mai to Seoul? You could fly into the following airports instead.

Gimpo International

17km from central Seoul

ClosestCheapest

from P6,973

Search flights

Incheon International

48km from central Seoul

from P7,387

Search flights

Chiang Mai to Seoul: Flight information

The things to know before you go.

Cheapest flight found	P6,973
Cheapest month to fly	May
Average flight time	5 hrs, 17 mins
Most popular airline	Korean Air
Average flights per week	25

Finding cheap flights from Chiang Mai to Seoul: Frequently asked questions

How many airports are there in Seoul?

There are 2 airports in Seoul: Gimpo International and Incheon International.

How much are return flights from Chiang Mai to Seoul?

The best price we found for a return flight from Chiang Mai to Seoul is P13,364. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Chiang Mai to Seoul?

5 hours and 17 minutes is the average flight time from Chiang Mai to Seoul.

Which airlines fly direct from Chiang Mai to Seoul?

Korean Air, Jeju Air and Delta fly direct from Chiang Mai to Seoul.

How many flights are there a week from Chiang Mai to Seoul?

As of April 2026, there are 25 flights per week flying from Chiang Mai to Seoul.

When is the cheapest time to fly from Chiang Mai to Seoul?

The cheapest month to fly from Chiang Mai to Seoul is usually May.

Which is the cheapest airport to fly into in Seoul?

If you're flying from Chiang Mai Airport, the cheapest airport near Seoul is Incheon International – which is 47.8 km away from the centre of Seoul. We've found flights into this airport from P13,364.

Which upcoming date is cheapest to fly from Chiang Mai Airport to Seoul on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chiang Mai Airport to Seoul on Thursday, 21 May 2026.

Can I get a direct flight from Chiang Mai Airport to Seoul?

Yes – the average flight time is 5 hours and 17 minutes.

How can I get the best flight deal from Chiang Mai Airport to Seoul?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seoul but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Seoul?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seoul is around 40 days in advance, so don’t leave your flight to the last minute.

What’s the weather like in Seoul?

In April, the average temperature is usually around 10°C. August is typically the warmest month in Seoul, when it usually averages around 28°C. You can expect the least rain in January. The coldest month is January, with temperatures averaging -8°C. The rainiest month is July.

Which is the cheapest airline to fly from Chiang Mai Airport to Seoul with?

Currently, Air Busan offers the cheapest flight tickets to Seoul.

Travelling from Chiang Mai International Airport (CNX) to Seoul: what you need to know

The average time for a direct flight from Chiang Mai International Airport to Seoul is 6 hours 5 minutes.
Seoul is two hours ahead of Chiang Mai, where Chiang Mai International Airport is located. Seoul observes the UTC+9 timezone.
Chiang Mai International Airport (CNX) to Seoul Incheon International Airport (ICN) is the most popular route. When searching for your flight, you can choose from 18 weekly services between CNX and ICN.
For a relaxed start to your CNX to Seoul flight, leave enough time to check in and drop off your luggage. Arriving two hours before international departures and an hour before domestic flights is the general rule.
During popular months like February, it's a good idea to get to the airport earlier than usual. Arrive two hours before a domestic departure and four hours ahead of international flights whenever you're travelling during peak periods in general.
You can book a direct Chiang Mai International Airport to Seoul ticket. Start your trip at CNX and end it at Seoul Incheon International Airport (ICN).
These are some of the most popular airlines offering direct flights from Chiang Mai International Airport to Seoul:
A stopover is the ideal opportunity to take a break from travelling and possibly even tick a new city off your list. When browsing for plane tickets from CNX to Seoul, uncheck the 'Direct flights only' box to see where you can visit along the way. Some popular options include:
- Beijing Capital International Airport (PEK)
- Bangkok Suvarnabhumi International Airport (BKK)
- Hong Kong International Airport (HKG)
The journey from central Chiang Mai to CNX takes about 25 minutes by public transport. If you drive, ride-share or get a taxi, you'll cover the 3 kilometers in 15 minutes or so, depending on traffic conditions.
In search of a hotel near CNX? If you've booked an early flight from Chiang Mai International Airport to Seoul, these accommodation options set you up for a seamless send-off:
73% of flights that take off from Chiang Mai International Airport make it to their destination on schedule.

How to find the cheapest flights from Chiang Mai International Airport (CNX) to Seoul

P6,973 is the lowest price we've found for a one-way Chiang Mai International Airport to Seoul flight. A round-trip ticket right now is P13,364. Depending on when you want to go and the availability, these fares could change.
Lock in cheap flights from CNX to Seoul by booking one month ahead. According to our research, that's the sweet spot for finding the biggest deals.
June is the best month for picking up an awesome deal on Chiang Mai International Airport to Seoul tickets. If you need to travel during a different time of year, the 'Whole month' tool will give you the lowest prices for each month.
Finding a cheap flight from CNX to Seoul couldn't be easier with Price Alerts. All you need to do is create one of these automatic notifications and we'll notify you as soon as a new discount appears.
Find an affordable flight from Chiang Mai International Airport to Seoul with the help of our filters. Choose your ideal departure time, duration and airlines, then sort the results by 'Cheapest' to see the best deals.

Airports in Seoul

Seoul Incheon International Airport (ICN)

Seoul Incheon International Airport (ICN) to central Seoul takes about 1 hour 5 minutes by car. The centre is roughly 48 kilometers away.
When travelling by public transport, expect a journey time of around 50 minutes.
If you're arriving on a late flight from Chiang Mai International Airport to Seoul, nothing beats the convenience of staying near the terminal. Grab your luggage from the carousel and then be showered and snoozing soon after at one of these hotels near ICN:
To get the lowest price, book your vehicle from Seoul Incheon International Airport around four weeks in advance of your flight from CNX to Seoul.

Seoul Gimpo International Airport (GMP)

Once your flight from Chiang Mai International Airport to Seoul has landed, you can make your way to the city centre in around 30 minutes by car. Central Seoul is roughly 16 kilometers from Seoul Gimpo International Airport (GMP).
If you choose to travel on public transport, you'll reach the centre in 35 minutes or so.
There are some comfortable places to call home for the night near GMP. Unwind and get cosy after your CNX to Seoul flight at one of these well-located options:
Get what you want, not just what's left over. Booking your ride from GMP one week in advance often means better prices and a wider selection of vehicles.

Best time to go to Seoul

It's time to plan your trip dates for your flight from Chiang Mai International Airport to Seoul. January is the busiest month to travel to Seoul. If you like a more low-key vibe, go in December.
Lock in a Chiang Mai International Airport to Seoul plane ticket with a departure in August if you want to explore the city during its warmest month. Expect temperatures to range from 19ºC (66ºF) to 32ºC (90ºF).
January sees average temperatures of between -12ºC (10ºF) and 4ºC (39ºF). Look for a cheap ticket from CNX to Seoul around that time if you like travelling in cooler conditions.

More about Seoul

When it comes to searching for somewhere to rest your head, you'll find the best stays in Seoul right here. Explore these hotels as soon as you've locked in your flight from Chiang Mai International Airport to Seoul:
All great adventures should include a little sightseeing. Bukchon Hanok Village, Gyeongbokgung Palace and N Seoul Tower are must-visits when exploring Seoul.

Explore more of South Korea

You've visited Seoul, now it's time to discover other corners of South Korea. Travel around 322 kilometers southeast to Busan to tick off its must-visit sights. From Gamcheon Culture Village to Haeundae Beach and Beautiful View Busan - Diamond Bridge, there's plenty to keep you on the go.
Daegu is another well-known destination in South Korea and is around 241 kilometers southeast of Seoul. No trip is complete without dropping by Alive Aquarium Daegu, Nature Park and Seonsa Historical Park.