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KKS to USN: distance & flight time
Kashan (Kashan Airport) → Ulsan (Ulsan Airport)
4,293 mi
6,908 km · 3,730 nm
8h 53m
estimated nonstop flight time
+5.5h
time difference · heading northeast
See live KKS→USN fares Phone-only fares on this route — call free
Flight time details
4,293 miles nonstop takes roughly 8h 53m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5.5-hour time gain when reading arrival times on your ticket.
The two airports
- KKS — Kashan Airport · Kashan, Iran
- 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 KKS
- IFH · Hesa Airport67 mi away
- IFN · Esfahan Shahid Beheshti International Airport81 mi away
- AJK · Arak Airport100 mi away
- IKA · Imam Khomeini International Airport108 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 KKS from USN?
The flight distance from Kashan (KKS) to Ulsan (USN) is 4,293 miles (6,908 km, 3,730 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KKS to USN?
A nonstop flight takes about 8h 53m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Kashan and Ulsan?
Ulsan is 5.5 hours ahead of Kashan.
What is the cheapest way to fly from KKS to USN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KKS–USN that never appear on search engines, with no booking fees.