Direct (nonstop) flights from Jeju to Ulsan

2 airlines fly nonstop from Jeju International (CJU) to Ulsan (USN). It's 217 miles (350 km), about 1h 10m in the air. Operated by Air Busan, Korean Air.

CJU
Jeju International
🇰🇷 Jeju, Republic of Korea
USN
Ulsan
🇰🇷 Ulsan, Republic of Korea
Flight Time
1h 10m
Distance
217 mi
350 km
CO₂/pax
40 kg
−73 kg vs. layover
Airlines
2
Air Busan +1
Time Diff
Same timezone
Operated by Air Busan Air Busan Korean Air Korean Air

Route data last updated: May 31, 2026

Airlines with non-stop flights

Air Busan BX Air Busan
Route
CJU → USN
Flight Time
1h 10m
Distance
217 mi
Korean Air KE Korean Air
Route
CJU → USN
Flight Time
1h 10m
Distance
217 mi

Alternative Routes

Other ways to fly from Jeju to Ulsan with one stop · direct emits 40 kg CO₂ per passenger

CJU GMP (Seoul) USN
Leg 1: 1h 15m (280 mi) Leg 2: 1h (196 mi) Total: ~2h 15m 🍃 113 kg CO₂ (+183% vs. direct)
Leg 1
CJU → GMP
1h 15m · 280 mi
View CJU to GMP flights →
Leg 2
GMP → USN
1h · 196 mi
View GMP to USN flights →

Looking for the return flight?

USN → CJU: Flights from Ulsan to Jeju

Frequently Asked Questions

How long is the direct flight from Jeju to Ulsan?

A nonstop flight from Jeju (CJU) to Ulsan (USN) takes approximately 1 hours and 10 minutes. The distance is 217 miles (350 km).

Which airlines fly nonstop from Jeju to Ulsan?

2 airlines: Air Busan, Korean Air.

Is there a nonstop flight from Jeju to Ulsan?

Yes. 2 airlines: Air Busan, Korean Air.

How far is Jeju from Ulsan?

The flight distance from Jeju to Ulsan is 217 miles (350 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as London to Paris.

What type of aircraft flies from Jeju to Ulsan?

At 1h 10m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.

What is the carbon footprint of a flight from Jeju to Ulsan?

Roughly 40 kg CO2 per passenger one-way. That's about the same as driving 200 km.

Is the return flight from Ulsan to Jeju also nonstop?

Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.

When is the cheapest time to fly from Jeju to Ulsan?

Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.

How early should I arrive at Jeju International for this flight?

1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.