Need help booking?
Unpublished phone-only deals available
BFI to BWU: distance & flight time
Seattle (Boeing Field King County International Airport) → Sydney (Sydney Bankstown Airport)
7,759 mi
12,488 km · 6,743 nm
15h 41m
estimated nonstop flight time
+17h
time difference · heading southwest
See live BFI→BWU fares Phone-only fares on this route — call free
Flight time details
7,759 miles nonstop takes roughly 15h 41m 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
- BFI — Boeing Field King County International Airport · Seattle, United States
- BWU — Sydney Bankstown 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 BFI
- SEA · Seattle Tacoma International Airport6 mi away
- RNT · Renton Municipal Airport5 mi away
- PWT · Bremerton National Airport22 mi away
- TIW · Tacoma Narrows Airport22 mi away
Near BWU
- SYD · Sydney Kingsford Smith International Airport11 mi away
- CDU · Camden Airport19 mi away
- XRH · RAAF Base Richmond25 mi away
- WOL · Wollongong Airport45 mi away
Frequently asked questions
How far is BFI from BWU?
The flight distance from Seattle (BFI) to Sydney (BWU) is 7,759 miles (12,488 km, 6,743 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BFI to BWU?
A nonstop flight takes about 15h 41m 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 Seattle and Sydney?
Sydney is 17 hours ahead of Seattle.
What is the cheapest way to fly from BFI to BWU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BFI–BWU that never appear on search engines, with no booking fees.