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HSM to KOS: distance & flight time
Horsham (Horsham Airport) → Sihanoukville (Sihanoukville International Airport)
4,113 mi
6,619 km · 3,574 nm
8h 32m
estimated nonstop flight time
—
time difference · heading northwest
See live HSM→KOS fares Phone-only fares on this route — call free
Flight time details
4,113 miles nonstop takes roughly 8h 32m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- HSM — Horsham Airport · Horsham, 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 HSM
- WKB · Warracknabeal Airport28 mi away
- SWC · Stawell Airport42 mi away
- ARY · Ararat Airport63 mi away
- HTU · Hopetoun Airport67 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 HSM from KOS?
The flight distance from Horsham (HSM) to Sihanoukville (KOS) is 4,113 miles (6,619 km, 3,574 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HSM to KOS?
A nonstop flight takes about 8h 32m 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 cheapest way to fly from HSM to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HSM–KOS that never appear on search engines, with no booking fees.