Distance Between Citiesin Australia

Australia is home to 7 major cities in our database, including Sydney, Melbourne, Brisbane, Perth, Adelaide and more. The largest city by population is Sydney with approximately 5,312,163 residents, located in the New South Wales region.

Within Australia, there are 12 domestic routes connecting cities across the country. The shortest domestic route is Melbourne to Adelaide at 654 km, while the longest is Perth to Sydney at 3,291 km.

Australia also connects to 32 international destinations worldwide. Whether you're planning domestic travel or international flights, this comprehensive distance guide provides all the information you need. All distances are calculated using the Haversine formula for maximum accuracy.

For travelers within Australia, shorter routes under 500 km are often well-suited for driving or train travel. Routes between 500-2,000 km offer a choice between driving and flying, while anything over 2,000 km is typically best served by air travel. Read our guide on estimating travel time for more detailed planning advice.

Australia's aviation and ground network shapes how the 44 routes on this page actually feel in practice. The flag carrier Qantas handles most long-haul departures, while low-cost players such as Jetstar, Virgin Australia, Bonza dominate short-haul leisure traffic. The primary international gateway is Sydney Kingsford Smith (SYD), which also acts as the natural connection point for travelers using one-stop routings to save 20–40% on long-haul fares.

For shorter trips, ground transport in Australia is built around long-distance Indian Pacific and Ghan services plus dense suburban networks in Sydney and Melbourne. On corridors under roughly 700 km, door-to-door rail travel is often faster than flying once airport security and transfers are factored in — a calculation worth running before booking domestic flights inside Australia.

Of the 44 routes covered here, the breakdown is 8 between 500 and 1,500 km, 19 between 1,500 and 5,000 km, 10 between 5,000 and 10,000 km, 7 over 10,000 km. That mix is why a single travel-time rule never works for Australia: a typical traveler will encounter everything from a 60-minute regional hop to a 12-hour ultra-long-haul flight, depending on destination.

The 7 cities in our database for Australia are anchored by Sydney — a metropolitan area of roughly 5.31 million people sitting at -33.87°S, 151.21°E. That position places much of Australia in a subtropical climate with hot summers and mild winters, which directly influences both the local travel calendar and how comfortable arrivals from very different latitudes will feel.

Domestic distances within Australia range from Melbourne to Adelaide at 654 km up to Perth to Sydney at 3,291 km. The wider that range, the more critical it becomes to match transport mode to journey length — exactly what the routes table above is designed to help with.

Because of Earth's curvature, the great-circle distances shown on this page are not the same as flight paths drawn on a flat map. Routes between Australia and far-away destinations often track closer to the poles than people expect — read more in our guide on how the Haversine formula works.

• Currency: Australian dollar (AUD)
• Visa & entry: ETA or eVisitor required in advance
• Best season: September–November and March–May
• Driving: traffic drives on the left

Australia is generally a higher-cost destination, so booking 2–3 months ahead for international flights and 6–8 weeks ahead for domestic routes typically delivers the best fares.

Mid-week departures (Tuesday and Wednesday in particular) into and out of Australia are typically 20–30% cheaper than Friday and Sunday flights on the same routes. Red-eye and very early-morning departures usually save another 10–15%. Budget carriers serving Australia apply strict carry-on rules and unbundled fares, so packing light remains the single biggest lever for keeping total trip cost low.

For multi-city trips inside Australia, compare the cost of a single open-jaw flight plus ground transport against multiple point-to-point flights — on routes with strong rail service, the rail-and-fly combination usually wins on both price and total door-to-door time.

Under 500 km: ground transport — driving, coaches, or the rail services described above — is usually competitive with flying door-to-door once airport overhead is included. This band covers many of the shortest routes on this page.

500–1,500 km: the choice gets interesting. A direct domestic flight typically saves 2–4 hours over driving in this band, but cheap fares disappear quickly without advance booking.

Over 1,500 km: flying becomes the obvious choice. The 32 international routes from Australia above 1,500 km on this page are essentially flight-only journeys; ground alternatives exist only on a handful of specialist sleeper trains or long-distance coaches and aren't time-competitive.

Whichever mode you pick, use the calculator on this site to confirm exact great-circle figures, then add 20–40% for actual driving distance and 30–60 minutes per direction for airport overhead. Browse our travel guides for in-depth advice on flight time, driving distance and trip planning across Australia and beyond.