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KFS to USN: distance & flight time
Kastamonu (Kastamonu Airport) → Ulsan (Ulsan Airport)
4,908 mi
7,898 km · 4,265 nm
10h 5m
estimated nonstop flight time
+6h
time difference · heading northeast
See live KFS→USN fares Phone-only fares on this route — call free
Flight time details
4,908 miles nonstop takes roughly 10h 5m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- KFS — Kastamonu Airport · Kastamonu, Turkey
- 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 KFS
- NOP · Sinop Airport82 mi away
- ONQ · Zonguldak Airport89 mi away
- ESB · Esenboğa International Airport92 mi away
- MZH · Amasya Merzifon Airport96 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 KFS from USN?
The flight distance from Kastamonu (KFS) to Ulsan (USN) is 4,908 miles (7,898 km, 4,265 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KFS to USN?
A nonstop flight takes about 10h 5m 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 Kastamonu and Ulsan?
Ulsan is 6 hours ahead of Kastamonu.
What is the cheapest way to fly from KFS to USN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KFS–USN that never appear on search engines, with no booking fees.