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KOS to KSO: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Kastoria (Kastoria National Airport)
5,346 mi
8,603 km · 4,645 nm
10h 57m
estimated nonstop flight time
-4h
time difference · heading northwest
See live KOS→KSO fares Phone-only fares on this route — call free
Flight time details
5,346 miles nonstop takes roughly 10h 57m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4-hour time set-back when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- 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 KOS
- PQC · Phu Quoc International Airport37 mi away
- PNH · Phnom Penh International Airport106 mi away
- VKG · Rach Gia Airport110 mi away
- KZC · Kampong Chhnang Airport132 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 KOS from KSO?
The flight distance from Sihanoukville (KOS) to Kastoria (KSO) is 5,346 miles (8,603 km, 4,645 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to KSO?
A nonstop flight takes about 10h 57m 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 Sihanoukville and Kastoria?
Kastoria is 4 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to KSO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–KSO that never appear on search engines, with no booking fees.