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REP to SYD: distance & flight time
Siem-reap (Siem Reap International Airport) → Sydney (Sydney Kingsford Smith International Airport)
4,515 mi
7,267 km · 3,924 nm
9h 19m
estimated nonstop flight time
+3h
time difference · heading southeast
See live REP→SYD fares Phone-only fares on this route — call free
Flight time details
4,515 miles nonstop takes roughly 9h 19m 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
- REP — Siem Reap International Airport · Siem-reap, Cambodia
- SYD — Sydney Kingsford Smith International Airport · Sydney, 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 REP
- BBM · Battambang Airport45 mi away
- KZC · Kampong Chhnang Airport95 mi away
- PXR · Surin Airport103 mi away
- TDX · Trat Airport128 mi away
Near SYD
- BWU · Sydney Bankstown Airport11 mi away
- CDU · Camden Airport29 mi away
- XRH · RAAF Base Richmond33 mi away
- WOL · Wollongong Airport48 mi away
Frequently asked questions
How far is REP from SYD?
The flight distance from Siem-reap (REP) to Sydney (SYD) is 4,515 miles (7,267 km, 3,924 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from REP to SYD?
A nonstop flight takes about 9h 19m 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 Siem-reap and Sydney?
Sydney is 3 hours ahead of Siem-reap.
What is the cheapest way to fly from REP to SYD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on REP–SYD that never appear on search engines, with no booking fees.