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CJU to USN: distance & flight time
Cheju (Jeju International Airport) → Ulsan (Ulsan Airport)
217 mi
349 km · 189 nm
1h 2m
estimated nonstop flight time
Same time
time difference · heading northeast
See live CJU→USN fares Phone-only fares on this route — call free
Flight time details
217 miles nonstop takes roughly 1h 2m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- CJU — Jeju International Airport · Cheju, South Korea
- USN — Ulsan Airport · Ulsan, South Korea
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near CJU
- JDG · Jeongseok Airport15 mi away
- MPK · Mokpo Heliport86 mi away
- MWX · Muan International Airport102 mi away
- RSU · Yeosu Airport112 mi away
Near USN
- KPO · Pohang Airport (G-815/K-3)28 mi away
- PUS · Gimhae International Airport37 mi away
- TAE · Daegu Airport44 mi away
- CHF · Jinhae Airbase/Airport (G-813/K-10)48 mi away
Frequently asked questions
How far is CJU from USN?
The flight distance from Cheju (CJU) to Ulsan (USN) is 217 miles (349 km, 189 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CJU to USN?
A nonstop flight takes about 1h 2m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from CJU to USN?
Nonstop service on CJU–USN depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 2m nonstop estimate.
What is the cheapest way to fly from CJU to USN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CJU–USN that never appear on search engines, with no booking fees.
Why are some CJU to USN fares phone-only?
Consolidator contracts let us sell certain CJU–USN tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.