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SYD to KOS: distance & flight time
Sydney (Sydney Kingsford Smith International Airport) → Sihanoukville (Sihanoukville International Airport)
4,380 mi
7,048 km · 3,806 nm
9h 3m
estimated nonstop flight time
-3h
time difference · heading northwest
See live SYD→KOS fares Phone-only fares on this route — call free
Flight time details
4,380 miles nonstop takes roughly 9h 3m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- SYD — Sydney Kingsford Smith International Airport · Sydney, Australia
- 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 SYD
- BWU · Sydney Bankstown Airport11 mi away
- CDU · Camden Airport29 mi away
- XRH · RAAF Base Richmond33 mi away
- WOL · Wollongong Airport48 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 SYD from KOS?
The flight distance from Sydney (SYD) to Sihanoukville (KOS) is 4,380 miles (7,048 km, 3,806 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SYD to KOS?
A nonstop flight takes about 9h 3m 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 Sydney and Sihanoukville?
Sihanoukville is 3 hours behind Sydney.
What is the cheapest way to fly from SYD to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SYD–KOS that never appear on search engines, with no booking fees.