Cheap Flights from Seoul to Chiang Mai starting at S$ 101

We've found these cheap flights for you. You can book one-way or return flight tickets.

Round-trip
One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Cheapest time to fly from Seoul to Chiang Mai

We monitor flight fares to help you find the best deals effortlessly

Cheapest flights

From price

20 27
May

27 4
4 11
11 18
18 25
Jun

25 1
1 8
8 15
15 22
22 29
Jul

29 6
6 13

Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

When to buy flight tickets from Seoul (SEL) to Chiang Mai (CNX) the cheapest?

Airlines adjust prices for flights from Seoul to Chiang Mai based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much is a flight from Seoul (SEL) to Chiang Mai (CNX) cost?

According to Trip.com's data, the lowest price is around S$ 463.
How long is a flight from Seoul (SEL) to Chiang Mai (CNX)?

It takes about 5 hours 50 minutes to fly from Seoul (SEL) to Chiang Mai (CNX).
What are the most popular airlines that fly from Seoul (SEL) to Chiang Mai (CNX)?

Airlines with flights from Seoul (SEL) to Chiang Mai (CNX): Jeju Air, Thai Airways, Eastar Jet, Korean Air, Delta Air Lines, Hahn Air System and Asiana Airlines.
How many airports in Chiang Mai?

There are 1 airports near Chiang Mai: Chiang Mai International Airport.

How to find a cheap flight from Seoul to Chiang Mai

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Seoul to Chiang Mai. Book your flights at the right time and save more.

Choose your dates flexibly and get the best deals on flights from Seoul to Chiang Mai.

Tap 'Date' on the flight search bar to browse the calendar for Seoul to Chiang Mai airfare over the next 6 months in 2025. If you're looking to fly within the next 3 months, the cheapest date seems to be Sat, May 24, with one-way flights starting at S$ 114.

Compare cheap flight deals from hundreds of airlines for Seoul to Chiang Mai flights.

Our extensive search lets you compare prices from over 500 airlines to find the cheapest flights from Seoul to Chiang Mai. The cheapest flight at the moment is with Jeju Air.

Set up a Price Alert

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Book early or wait for last-minute deals.

It's always better to book early. Flight tickets are often at their lowest when first released, usually a year ahead of departure. Keep an eye out as soon as your desired flights open for booking. If you miss the early deals, you may still find lower prices closer to your travel date.

Search for flights on the go.

For the best flight booking experience on the go, download Trip.com and search for cheap flights from Seoul to Chiang Mai to get your exclusive deals.

Find cheapest flight ticket from Seoul to Chiang Mai

Cheapest one-way flight price	S$ 96
Cheapest return ticket price	S$ 205
Off-season for travel	March
Peak season for travel	January
Flight distance	3,421.41km
Average flight time	5 hours 50 minutes
Popular airline	Jeju Air