Need help booking?
Unpublished phone-only deals available
SYD to WBU: distance & flight time
Sydney (Sydney Kingsford Smith International Airport) → Boulder (Boulder Municipal Airport)
8,330 mi
13,406 km · 7,239 nm
16h 48m
estimated nonstop flight time
-16h
time difference · heading northeast
See live SYD→WBU fares Phone-only fares on this route — call free
Flight time details
8,330 miles nonstop takes roughly 16h 48m 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
- WBU — Boulder Municipal Airport · Boulder, 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 WBU
- DEN · Denver International Airport32 mi away
- BJC · Rocky Mountain Metropolitan Airport11 mi away
- FNL · Northern Colorado Regional Airport31 mi away
- BFK · Buckley Air Force Base34 mi away
Frequently asked questions
How far is SYD from WBU?
The flight distance from Sydney (SYD) to Boulder (WBU) is 8,330 miles (13,406 km, 7,239 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SYD to WBU?
A nonstop flight takes about 16h 48m 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 Boulder?
Boulder is 16 hours behind Sydney.
What is the cheapest way to fly from SYD to WBU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SYD–WBU that never appear on search engines, with no booking fees.