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SUS to SYD: distance & flight time
Null (Spirit of St Louis Airport) → Sydney (Sydney Kingsford Smith International Airport)
9,044 mi
14,555 km · 7,859 nm
18h 12m
estimated nonstop flight time
+15h
time difference · heading west
See live SUS→SYD fares Phone-only fares on this route — call free
Flight time details
9,044 miles nonstop takes roughly 18h 12m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time gain when reading arrival times on your ticket.
The two airports
- SUS — Spirit of St Louis Airport · Null, United States
- 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 SUS
- STL · St Louis Lambert International Airport16 mi away
- ALN · St Louis Regional Airport36 mi away
- BLV · Scott AFB/Midamerica Airport45 mi away
- JEF · Jefferson City Memorial Airport81 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 SUS from SYD?
The flight distance from Null (SUS) to Sydney (SYD) is 9,044 miles (14,555 km, 7,859 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SUS to SYD?
A nonstop flight takes about 18h 12m 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 Null and Sydney?
Sydney is 15 hours ahead of Null.
What is the cheapest way to fly from SUS to SYD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SUS–SYD that never appear on search engines, with no booking fees.