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OST to KOS: distance & flight time
Ostend (Ostend-Bruges International Airport) → Sihanoukville (Sihanoukville International Airport)
6,108 mi
9,830 km · 5,308 nm
12h 27m
estimated nonstop flight time
+5h
time difference · heading east
See live OST→KOS fares Phone-only fares on this route — call free
Flight time details
6,108 miles nonstop takes roughly 12h 27m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time gain when reading arrival times on your ticket.
The two airports
- OST — Ostend-Bruges International Airport · Ostend, Belgium
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
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 OST
- KJK · Wevelgem Airport30 mi away
- HZB · Merville-Calonne Airport41 mi away
- CQF · Calais-Dunkerque Airport43 mi away
- LIL · Lille-Lesquin Airport45 mi away
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
Frequently asked questions
How far is OST from KOS?
The flight distance from Ostend (OST) to Sihanoukville (KOS) is 6,108 miles (9,830 km, 5,308 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OST to KOS?
A nonstop flight takes about 12h 27m 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 Ostend and Sihanoukville?
Sihanoukville is 5 hours ahead of Ostend.
What is the cheapest way to fly from OST to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OST–KOS that never appear on search engines, with no booking fees.