Jeju Air flights from Chiang Mai to Seoul (CNX - SEL)

CNX — SEL
31 Oct — 7 Nov1
1 adult
1 adult, Economy, 0 bags

Find Jeju Air flight deals from Chiang Mai to Seoul

Enter your travel dates to find the best prices.

Cheapest Jeju Air flights from Chiang Mai to Seoul

Fri 2/1023:00 -
Nonstop5h 30m
Sat 10/1018:10 -
Nonstop5h 50m
Deal found 30/9฿6,762
Fri 2/1023:00 -
Nonstop5h 30m
Fri 9/1018:10 -
Nonstop5h 50m
Deal found 1/10฿8,680
Mon 26/1000:35 -
Nonstop4h 50m
Mon 9/1119:15 -
Nonstop6h 20m
Deal found 30/9฿9,656
  • Can I get a flight from Chiang Mai to Seoul on Jeju Air for under ฿10,093?

    Cheapflights users have found 9 Jeju Air flights for under ฿10,093 on the CNX-SEL route. Prices on flights to Seoul from Chiang Mai can vary based on many factors including dates. To look at price based on your preferred dates, click here.

Jeju Air flights from Chiang Mai to Seoul in 2026

One-way from

฿4,037

Return from

฿9,656

Popular in

November

Cheapest in

October

Average price (all airlines)

฿8,075
Jeju Air
  • Jeju Air
  • 13/10-31/12
  • Nonstop
  • 5h 30m total
  • Chiang Mai to Seoul
Jeju Air
  • Jeju Air
  • 26/10-9/11
  • Nonstop
  • 11h 10m total
  • Chiang Mai to Seoul
Highest demand for flights from Chiang Mai to Seoul; 4% potential price increase.
Best time to find cheap flights from Chiang Mai to Seoul; 3% potential price drop.
Average price for all Chiang Mai to Seoul flights (one-way and round-trip).

Which month is the cheapest to fly Economy class from Chiang Mai to Seoul?

For Economy class flights, the cheapest month to fly this route is October. The most expensive months are February and December.

Weekly Jeju Air flight availability from Chiang Mai to Seoul

The most Jeju Air flights from CNX to SEL are scheduled on a Monday (1 on average). You will have fewer Jeju Air flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Seoul by month

In terms of precipitation, rainfall in Seoul ranges from 27.0 - 253.0 inches per month. July is typically the wettest month, when rainfall can reach 253.0 mm. December is typically the driest time to visit Seoul when rainfall is around 27.0 mm.

Temperature in Seoul by month

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Best time to book a flight from Chiang Mai to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Chiang Mai with our price prediction graph.
Estimated return price

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See what others are saying about Jeju Air

Jeju Air
7.6
Good
38 reviews
Overview

Comfort

7.6

Entertainment

5.9

Food

6.0

Boarding

8.0

Crew

8.4

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