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Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–OST that never appear on search engines, with no booking fees.