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HIO to SYD: distance & flight time
Hillsboro (Portland Hillsboro Airport) → Sydney (Sydney Kingsford Smith International Airport)
7,663 mi
12,332 km · 6,659 nm
15h 29m
estimated nonstop flight time
+17h
time difference · heading southwest
See live HIO→SYD fares Phone-only fares on this route — call free
Flight time details
7,663 miles nonstop takes roughly 15h 29m 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
- HIO — Portland Hillsboro Airport · Hillsboro, 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 HIO
- PDX · Portland International Airport17 mi away
- TTD · Portland Troutdale Airport27 mi away
- KLS · Southwest Washington Regional Airport40 mi away
- OTK · Tillamook Airport43 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 HIO from SYD?
The flight distance from Hillsboro (HIO) to Sydney (SYD) is 7,663 miles (12,332 km, 6,659 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HIO to SYD?
A nonstop flight takes about 15h 29m 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 Hillsboro and Sydney?
Sydney is 17 hours ahead of Hillsboro.
What is the cheapest way to fly from HIO to SYD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HIO–SYD that never appear on search engines, with no booking fees.