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SYD to BOI: distance & flight time
Sydney (Sydney Kingsford Smith International Airport) → Boise (Boise Air Terminal/Gowen Field)
7,900 mi
12,714 km · 6,865 nm
15h 57m
estimated nonstop flight time
-16h
time difference · heading northeast
See live SYD→BOI fares Phone-only fares on this route — call free
Flight time details
7,900 miles nonstop takes roughly 15h 57m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time set-back when reading arrival times on your ticket.
The two airports
- SYD — Sydney Kingsford Smith International Airport · Sydney, Australia
- BOI — Boise Air Terminal/Gowen Field · Boise, United States
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 SYD
- BWU · Sydney Bankstown Airport11 mi away
- CDU · Camden Airport29 mi away
- XRH · RAAF Base Richmond33 mi away
- WOL · Wollongong Airport48 mi away
Near BOI
- MUO · Mountain Home Air Force Base40 mi away
- ONO · Ontario Municipal Airport50 mi away
- MYL · McCall Municipal Airport92 mi away
- SUN · Friedman Memorial Airport97 mi away
Frequently asked questions
How far is SYD from BOI?
The flight distance from Sydney (SYD) to Boise (BOI) is 7,900 miles (12,714 km, 6,865 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SYD to BOI?
A nonstop flight takes about 15h 57m 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 Sydney and Boise?
Boise is 16 hours behind Sydney.
What is the cheapest way to fly from SYD to BOI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SYD–BOI that never appear on search engines, with no booking fees.