Flights operate between Ulsan (USN) and Jeju-si (CJU).
1 airline operates this route with 4-5 flights daily flights.
Average flight time is 1h 05m - 1h 10m.
Route distance is 218 miles (351 km).
Route Distance
218 miles (351 km)
Average Duration
1h 05m - 1h 10m
Airlines Operating This Route
Jin Air
Flight Frequency
Daily Flights
4-5 flights
Weekly Flights
30
Typical Departure Time Ranges
Earliest Departure
12:50
Latest Departure
12:50
Route Intelligence Dashboard
Overall Connectivity Score
35
ModerateRoute Diversity
1
Direct Routes
Jin Air serves 1 destination from USN
Weekly Frequency
7
Weekly Flights
Trend: Stable
Top 1 Most Frequent Routes - Details
| Route | Weekly Flights | Duration | Distance | Reliability |
|---|---|---|---|---|
| USN → Jeju-si (CJU) (CJU) | 7/week | 1h 05m - 1h 10m | 218 km | Seasonal |
Flight Schedule & Filters
Jin Air flights from Buk-gu (USN) to Jeju-si (CJU)
Jin Air operates scheduled nonstop flights between Buk-gu (USN) and Jeju-si (CJU). Jin Air operates 4-5 flights daily flights on this route.• Flight Duration: 1h 05m - 1h 10m (average flight time)• Distance: 218 miles (351 km) (air miles between airports)• Daily Flights: 4-5 flights (scheduled departures per day)
Buk-gu (USN)
KR
Jeju-si (CJU)
KR
FLIGHT TIME
1h 05m - 1h 10m
FLIGHT DISTANCE
218 miles (351 km)
1h 5m - 1h 5m
12:50
12:50
218 miles (351 km)
April
1 (Show)
30
Jin Air Terminal Information & Contact
Departure Terminal - Buk-gu (USN)
Terminal: D
Phone: 61 3 9645 5999
Location: D, Ulsan, KR
Arrival Terminal - Jeju-si (CJU)
Terminal: 1
Phone: 61 3 9645 5999
Location: 1, Jeju City, KR
Jin Air Flight Schedule from Buk-gu (USN) to Jeju-si (CJU)
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
LJ439 |  Jin Air | 12:50 | 13:55:00 | Boeing 737-800 Passenger |
Jin Air Monthly Flight Calendar
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Jin Air Terminal Information
Departure Terminal at Buk-gu (USN):
Terminal D:
• Jin Air Terminal Phone: 61 3 9645 5999
Arrival Terminal at Jeju-si (CJU):
Terminal 1:
• Jin Air Terminal Phone: 61 3 9645 5999
Weather & Climate at Jeju-si (CJU)
17.0°C
Avg Temperature150mm
Avg Rainfall14.6km/h
Avg Wind Speed77%
Avg HumidityBest Months to Visit
Challenging Months
12-Month Weather Overview
Wind Speed by Month
Humidity by Month
Best Time to Book Flights to Jeju-si (CJU)
Best Booking Window
Book 2-3 months in advance for best prices
Booking Tip
Avoid booking during extreme weather months for better deals
Peak Travel Months
Expect higher prices and more crowds during these months. Book early to secure better rates.
Recommended Months
These months offer the best balance of weather, prices, and availability.
Monthly Booking Recommendations
Flight Price Trends for Jeju-si (CJU)
Cheapest Months to Fly
Book flights during these months for the best deals and lowest prices.
Most Expensive Months
Prices are typically highest during these months. Consider booking well in advance or choosing alternative dates.
Price Trend Analysis
Prices are typically lower during shoulder seasons
Monthly Price Trends
Best Months to Fly Jin Air to Jeju-si (CJU)
Best Months
Optimal conditions for travel with favorable weather, prices, and availability.
Shoulder Season
Transition periods with moderate conditions. Good balance of price and experience.
Challenging Months
These months may have less favorable conditions. Plan accordingly and book early.
Extreme Conditions
These months may have extreme weather or conditions. Travel with caution and proper preparation.
Seasonal Insight
Best travel months: 2025-10
Seasonal Travel Calendar
Jin Air Contact Information and Customer Services
Jin Air Address
653-25 Duengchon-dong, Gangseo-gu
Seoul 07500 ~ 07899, South Korea
Official Website
jinair.com/Language/ENG/Frequently Asked Questions
How many Jin Air flights operate from Ulsan (USN) to Jeju City (CJU)?
Jin Air operates 1 flight from Ulsan (USN) to Jeju City (CJU).
What city does Jeju City (CJU) airport serve?
Jeju City (CJU) airport serves Jeju-si, KR.
How long is the Jin Air flight from Ulsan (USN) to Jeju City (CJU)?
The flight duration is approximately 1h 05m - 1h 10m.
What is the distance from Ulsan (USN) to Jeju City (CJU)?
The distance is 218 miles (351 km).
What aircraft does Jin Air use on this route?
Jin Air uses Boeing 737-800 Passenger on this route.
Which other airlines operate on this route?
2 other airlines operate on this route: Air Busan, Korean Air.
Which terminal does Jin Air use at Ulsan (USN)?
Jin Air flights from Ulsan (USN) depart from Terminal D. Terminal D phone: 61 3 9645 5999.
View all Jin Air flights to Ulsan (USN) →
Popular Jin Air routes from Ulsan include multiple destinations.
Route data verified regularly by Triposia Travel Research Team.