Need help booking?
Unpublished phone-only deals available
USN to KSO: distance & flight time
Ulsan (Ulsan Airport) → Kastoria (Kastoria National Airport)
5,479 mi
8,818 km · 4,761 nm
11h 13m
estimated nonstop flight time
-6h
time difference · heading northwest
See live USN→KSO fares Phone-only fares on this route — call free
Flight time details
5,479 miles nonstop takes roughly 11h 13m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- USN — Ulsan Airport · Ulsan, South Korea
- KSO — Kastoria National Airport · Kastoria, Greece
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 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
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
Frequently asked questions
How far is USN from KSO?
The flight distance from Ulsan (USN) to Kastoria (KSO) 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 USN to KSO?
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 Ulsan and Kastoria?
Kastoria is 6 hours behind Ulsan.
What is the cheapest way to fly from USN to KSO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USN–KSO that never appear on search engines, with no booking fees.