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

CNX — SEL
6 Feb — 13 Feb1
1 adult
1 adult, Economy, 0 bags

Cheapflights users flying from Chiang Mai to Seoul on Jeju Air typically fly into Incheon Intl and depart from Chiang Mai. Select your dates above for pricing.

Jeju Air flights from Chiang Mai to Seoul in 2026

Find detailed information about Jeju Air flights from Chiang Mai to Seoul. Explore the options provided by Jeju Air to plan your journey from Chiang Mai to Seoul. Data last updated 7 January 2026.

One-way from

฿4,401

Return from

฿8,647

Popular in

October

Cheapest in

September

Average price (all airlines)

฿11,331
Jeju Air
  • Jeju Air
  • 11/1
  • Nonstop
  • 4h 45m total
  • Chiang Mai to Seoul
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Jeju Air
  • Jeju Air
  • 14/5-24/5
  • Nonstop
  • 11h 20m total
  • Chiang Mai to Seoul
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Highest demand for flights from Chiang Mai to Seoul; 3% potential price increase.
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Best time to find cheap flights from Chiang Mai to Seoul; 3% potential price drop.
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Average price for all Chiang Mai to Seoul flights (one-way and round-trip).
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  • Can I get a flight from Chiang Mai to Seoul on Jeju Air for under ฿12,486?

    Cheapflights users have found 9 Jeju Air flights for under ฿12,486 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.

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
Explore the most affordable Jeju Air flight options available from Chiang Mai to Seoul. Find the lowest fares with prices last updated on 7 January 2026.

Wed 7/100:45CNX - ICN
Nonstop4h 45mJeju Air
Wed 1/418:10ICN - CNX
Nonstop5h 50mJeju Air
Deal found 5/1฿8,023
Wed 14/100:45CNX - ICN
Nonstop4h 45mJeju Air
Tue 17/219:10ICN - CNX
Nonstop6h 35mJeju Air
Deal found 6/1฿9,833
Sun 11/100:45CNX - ICN
Nonstop4h 45mJeju Air
Tue 20/119:10ICN - CNX
Nonstop6h 35mJeju Air
Deal found 5/1฿9,864

Travel insights for Jeju Air flights from Chiang Mai to Seoul

Get recent, data-driven insights about Jeju Air flights from Chiang Mai to Seoul including ideal travel times, pricing trends, and more.

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

Plan your trip to Seoul by taking into account the average rainfall totals 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

Plan your trip to Seoul by taking into account the average temperature totals 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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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See what others are saying about Jeju Air

Read reviews and see what other travellers are saying about their experiences with Jeju Air. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Jeju Air for your next flight. Reviews last updated 7 January 2026.
Jeju Air
7.6
Good
36 reviews
Check prices
Overview

Boarding

8.0

Food

6.0

Comfort

7.6

Crew

8.4

Entertainment

6.0

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