Need help booking?
Unpublished phone-only deals available
RNT to SYD: distance & flight time
Renton (Renton Municipal Airport) → Sydney (Sydney Kingsford Smith International Airport)
7,755 mi
12,481 km · 6,739 nm
15h 40m
estimated nonstop flight time
+17h
time difference · heading southwest
See live RNT→SYD fares Phone-only fares on this route — call free
Flight time details
7,755 miles nonstop takes roughly 15h 40m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 17-hour time gain when reading arrival times on your ticket.
The two airports
- RNT — Renton Municipal Airport · Renton, 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 RNT
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 RNT from SYD?
The flight distance from Renton (RNT) to Sydney (SYD) is 7,755 miles (12,481 km, 6,739 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RNT to SYD?
A nonstop flight takes about 15h 40m 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 Renton and Sydney?
Sydney is 17 hours ahead of Renton.
What is the cheapest way to fly from RNT to SYD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RNT–SYD that never appear on search engines, with no booking fees.