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GCI to SYD: distance & flight time
Guernsey (Guernsey Airport) → Sydney (Sydney Kingsford Smith International Airport)
10,727 mi
17,263 km · 9,321 nm
21h 30m
estimated nonstop flight time
+9h
time difference · heading northeast
See live GCI→SYD fares Phone-only fares on this route — call free
Flight time details
10,727 miles nonstop takes roughly 21h 30m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time gain when reading arrival times on your ticket.
The two airports
- GCI — Guernsey Airport · Guernsey, Guernsey
- 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 GCI
- JER · Jersey Airport24 mi away
- ACI · Alderney Airport26 mi away
- CER · Cherbourg-Maupertus Airport53 mi away
- GFR · Granville Airport60 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 GCI from SYD?
The flight distance from Guernsey (GCI) to Sydney (SYD) is 10,727 miles (17,263 km, 9,321 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GCI to SYD?
A nonstop flight takes about 21h 30m 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 Guernsey and Sydney?
Sydney is 9 hours ahead of Guernsey.
What is the cheapest way to fly from GCI to SYD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GCI–SYD that never appear on search engines, with no booking fees.