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KSO to USN: distance & flight time
Kastoria (Kastoria National Airport) → Ulsan (Ulsan Airport)
5,479 mi
8,818 km · 4,761 nm
11h 13m
estimated nonstop flight time
+6h
time difference · heading northeast
See live KSO→USN fares Phone-only fares on this route — call free
Flight time details
5,479 miles nonstop takes roughly 11h 13m 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
- KSO — Kastoria National Airport · Kastoria, Greece
- 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 KSO
- KZI · Filippos Airport31 mi away
- IOA · Ioannina Airport57 mi away
- OHD · Ohrid St. Paul the Apostle Airport58 mi away
- LRA · Larisa Airport83 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 KSO from USN?
The flight distance from Kastoria (KSO) to Ulsan (USN) is 5,479 miles (8,818 km, 4,761 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KSO to USN?
A nonstop flight takes about 11h 13m 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 Kastoria and Ulsan?
Ulsan is 6 hours ahead of Kastoria.
What is the cheapest way to fly from KSO to USN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KSO–USN that never appear on search engines, with no booking fees.