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KOS to GFN: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Grafton (Grafton Airport)
4,307 mi
6,931 km · 3,743 nm
8h 55m
estimated nonstop flight time
+3h
time difference · heading southeast
See live KOS→GFN fares Phone-only fares on this route — call free
Flight time details
4,307 miles nonstop takes roughly 8h 55m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time gain when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- GFN — Grafton Airport · Grafton, Australia
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 GFN
- CFS · Coffs Harbour Airport39 mi away
- LSY · Lismore Airport66 mi away
- BNK · Ballina Byron Gateway Airport72 mi away
- GLI · Glen Innes Airport81 mi away
Frequently asked questions
How far is KOS from GFN?
The flight distance from Sihanoukville (KOS) to Grafton (GFN) is 4,307 miles (6,931 km, 3,743 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to GFN?
A nonstop flight takes about 8h 55m 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 Grafton?
Grafton is 3 hours ahead of Sihanoukville.
What is the cheapest way to fly from KOS to GFN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–GFN that never appear on search engines, with no booking fees.