Cheap Flights from Seoul to Chiang Mai

Cheapest flights from Seoul to Chiang Mai

Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Seoul to Chiang Mai. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.

Cheapest one way flight

$100

Eastar Jet

Direct flight

5h 40m

09/26/2026

The cheapest one-way flight from Seoul to Chiang Mai departs on 09/26/2026, is operated by Eastar Jet and costs $100

Cheapest round trip flight

—

There is no information about the cheapest roundtrip flight from Seoul to Chiang Mai

The fastest flight

5h 25m

Fastest flight from Seoul to Chiang Mai takes 5h 25m

Direct flights

Several times a week

There are direct flights on this route 5 days a week: Su, Tu, We, Th, and Sa

Earliest flight

5:20 PM

Latest flight

7:55 PM

Average flight duration

5h 55m

Direct flights count

24

Distance

3425km

Timezone difference

2h

The distance between Seoul and Chiang Mai is 3425km (2124 miles). The average flight duration is 5h 55m. There are 24 direct flights from Seoul to Chiang Mai. The time difference between Seoul and Chiang Mai is 2h. Flights from Seoul begin at 5:20 PM. The latest flight from Seoul departs at 7:55 PM

Remember that on average the ideal time to book flights is 2 months before departure!

Airfare from Seoul to Chiang Mai by month

The minimum one-way ticket price from Seoul to Chiang Mai is $82 (September 2026), while the maximum is $258 (January 2027). On average, a ticket costs $166–$189.

September 2026

Lowest price

on average:

$82

January 2027

Highest price

on average:

$258

Avg Price

Price dynamics

Tickets from Seoul to Chiang Mai are getting more expensive each month. From September 2026 to January 2027, the increase reached 214%, with prices now at $258. It's unlikely to get cheaper than the current level.

Cheaper and more expensive periods

The most significant price increase was from September 2026 to January 2027 — up 214%. The best time to fly is September 2026–November 2026, when the average price is $108. In December 2026–January 2027, tickets cost around $224.

Best time to buy

Given the rising prices, it's best not to delay your purchase. Flying in September 2026–November 2026 can save you up to 52% compared to the most expensive months.

Price predictability

Price variation across months on this route is 39.5%. Your choice of departure month significantly affects the total flight cost.

Airlines operating on route

The Seoul — Chiang Mai route is served by a wide range of airlines: 8 in total, including Eastar Jet, Air Busan, Jin Air, Jeju Air, T'way Air, Thai Vietjet Air, China Eastern Airlines, and Hong Kong Express Airways. Competition among carriers gives passengers the opportunity to find tickets at attractive fares — with prices starting from $100. Our service helps compare all available offers within seconds and choose the most convenient option. You can filter flights by price, departure time, or baggage rules to make your trip as comfortable as possible. With so many airlines, there’s always a chance to catch special promotions and save.

starting at $100

starting at $104

starting at $124

starting at $146

starting at $164

starting at $173

China Eastern Airlines

starting at $179

Hong Kong Express Airways

starting at $225

Non-stop flights from Seoul to Chiang Mai

A non-stop flight is the most convenient and comfortable way to fly from Seoul to Chiang Mai, despite the fact that sometimes flights with transfers can cost significantly less.

Seoul — Chiang Mai

SEL — CNX

09/26/2026

Departure

Direct flight

ZE517

starting at $100

Seoul — Chiang Mai

SEL — CNX

10/17/2026

Departure

Direct flight

BX7475

starting at $104

Seoul — Chiang Mai

SEL — CNX

09/10/2026

Departure

Direct flight

BX7475

starting at $105

Seoul — Chiang Mai

SEL — CNX

09/05/2026

Departure

Direct flight

BX7475

starting at $108

Seoul — Chiang Mai

SEL — CNX

09/06/2026

Departure

Direct flight

BX7475

starting at $108

Seoul — Chiang Mai

SEL — CNX

09/27/2026

Departure

Direct flight

BX7475

starting at $109

Seoul — Chiang Mai

SEL — CNX

09/08/2026

Departure

Direct flight

LJ9

starting at $124

Seoul — Chiang Mai

SEL — CNX

09/12/2026

Departure

Direct flight

LJ9

starting at $136

Seoul — Chiang Mai

SEL — CNX

09/20/2026

Departure

Direct flight

BX7475

starting at $144

Seoul — Chiang Mai

SEL — CNX

09/09/2026

Departure

Direct flight

7C2515

starting at $146

Schedule of direct flights from Seoul to Chiang Mai

The airlines on the Seoul — Chiang Mai route each fly on specific days: Jin Air flies on Sunday, Monday, Thursday, and Friday. Jeju Air only flies on Sunday and Thursday.

Jin Air

Su, Mo, Th, and Fr

starting at $140

Jeju Air

Su and Th

starting at $114

Seoul airports overview

Gimpo International Airport

•

GMP

16km

Incheon International Airport

•

ICN

49km

•

Chiang Mai airports overview

Chiang Mai International Airport

•

CNX

•

Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

What is the cheapest price for flights from Seoul to Chiang Mai?

The cheapest flight ticket from Seoul to Chiang Mai according to data for the last 48 hours costs $100

When is the best time to buy air tickets on the route Seoul — Chiang Mai?

Often the best time to buy tickets from Seoul to Chiang Mai is 2 months before departure.

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

Based on statistics over the past years, the lowest prices for flights from Seoul to Chiang Mai can be found flying in these months: September, November, December.

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

The fastest flights from Seoul to Chiang Mai start from 5 hours 25 minutes in the air.

Which airline can fly direct from Seoul to Chiang Mai?

The following airlines operate direct flights on the route Seoul — Chiang Mai: Eastar Jet, Air Busan, Jin Air

Special offers and sales on air tickets from Seoul to Chiang Mai

We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.

We couldn't find any special offers for flights from Seoul to Chiang Mai

Alternative routes

Cheongju ➜ Chiang Mai•Jeju ➜ Chiang Mai•Dandong ➜ Chiang Mai•Pyongyang ➜ Chiang Mai•Pohang ➜ Chiang Mai•Busan ➜ Chiang Mai•Daegu ➜ Chiang Mai•Ulsan ➜ Chiang Mai•Weihai ➜ Chiang Mai•Wonju ➜ Chiang Mai•Seoul ➜ Sittwe•Seoul ➜ Bangkok•Seoul ➜ Jinghong•Seoul ➜ Khon Kaen•Seoul ➜ Lincang•Seoul ➜ Mandalay•Seoul ➜ Udon Thani•Seoul ➜ Vientiane•Seoul ➜ Savannakhet

•••••••••••••••••••

Cheapest one way flight

$100

Eastar Jet

Direct flight

5h 40m

09/26/2026

The cheapest one-way flight from Seoul to Chiang Mai departs on 09/26/2026, is operated by Eastar Jet and costs $100

Cheapest round trip flight

—

There is no information about the cheapest roundtrip flight from Seoul to Chiang Mai

The fastest flight