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HLN to BWU: distance & flight time
Helena (Helena Regional Airport) → Sydney (Sydney Bankstown Airport)
8,179 mi
13,163 km · 7,108 nm
16h 30m
estimated nonstop flight time
+16h
time difference · heading west
See live HLN→BWU fares Phone-only fares on this route — call free
Flight time details
8,179 miles nonstop takes roughly 16h 30m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time gain when reading arrival times on your ticket.
The two airports
- HLN — Helena Regional Airport · Helena, 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 HLN
- BTM · Bert Mooney Airport51 mi away
- GTF · Great Falls International Airport67 mi away
- BZN · Gallatin Field70 mi away
- LVM · Mission Field97 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 HLN from BWU?
The flight distance from Helena (HLN) to Sydney (BWU) is 8,179 miles (13,163 km, 7,108 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HLN to BWU?
A nonstop flight takes about 16h 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 Helena and Sydney?
Sydney is 16 hours ahead of Helena.
What is the cheapest way to fly from HLN to BWU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HLN–BWU that never appear on search engines, with no booking fees.