Compare: Melbourne→Perth (2,722 km) vs Melbourne→Adelaide (654 km). Melbourne → Adelaide wins by 2,068 km (76%). Side-by-side with flight & drive times.
By SnapDistance Team · Updated April 21, 2026
2,722 km
1,691 miles · Flight: ~3h 54min · Drive: ~44h 14min
654 km
406 miles · Flight: ~1h 19min · Drive: ~10h 38min
✓ Shorter route
Difference: 2,068 km (76%) · Flight time difference: ~2h 35min
Verdict
Melbourne → Adelaide is the smarter pick if travel time and emissions matter most: it is 2,068 km (76%) shorter, saves about 2h 35min of flight time, and cuts roughly 527 kg of CO₂ per passenger. Choose Melbourne → Perth only if the destination itself is the reason for the trip.
Melbourne → Adelaide is the shorter route at 654 km, which is 2,068 km (76%) shorter than Melbourne → Perth. You would save approximately 2h 35min in flight time by choosing the shorter route.
| Metric | Melbourne → Perth | Melbourne → Adelaide |
|---|---|---|
| Distance (km) | 2,722 | 654 |
| Distance (miles) | 1,691 | 406 |
| Flight time | ~3h 54min | ~1h 19min |
| Driving time | ~44h 14min | ~10h 38min |
| Road distance (est.) | ~3,539 km | ~850 km |
| Drivable? | Yes | Yes |
| Cross-continental | No | No |
| Initial bearing | 275° (W) | 297° (WNW) |
| Time-zone shift | -2h | -1h |
| CO₂ – flight (per pax) | ~694 kg | ~167 kg |
| CO₂ – driving (per car) | ~605 kg | ~145 kg |
| Fuel cost (est.) | ~$354 USD | ~$85 USD |
Flying from Melbourne to Perth produces roughly 694 kg of CO₂ per passenger, based on the ICAO/EEA short-haul emission factor of ~0.255 kg per passenger-km. The Melbourne → Adelaide flight emits about 167 kg. Choosing the shorter route saves approximately 527 kg of CO₂ per traveler — equivalent to 25 typical tree-years of carbon sequestration. For comparison, driving emits roughly 605 kg and 145 kg per car respectively — meaningful only when the car carries multiple passengers.
The Melbourne to Perth route covers 2,722 km (1,691 miles), staying within Oceania. Melbourne (population: 5,078,193) is located in Victoria, Australia, while Perth (population: 2,085,973) is in Western Australia, Australia.
The Melbourne to Adelaide route covers 654 km (406 miles), remaining within Oceania. Melbourne (population: 5,078,193) is in Victoria, Australia, and Adelaide (population: 1,345,777) is in South Australia, Australia.
Flying from Melbourne to Perth takes approximately 3h 54min, while Melbourne to Adelaide takes 1h 19min. If driving is an option, expect roughly 44h 14min for the first route and 10h 38min for the second.
Since both routes depart from Melbourne, this comparison is especially useful for travelers deciding between Perth and Adelaide as a destination.
The 2,068 km difference between these routes is substantial and will significantly impact travel time and cost.
Both routes are drivable, with road distances of approximately 3,539 km and 850 km respectively. For road trips, the shorter route saves roughly 2,689 km of driving.
Perth (Australia) has a population of 2,085,973 and is located in the Western Australia region of Oceania. It's a significant city with good transport links and cultural offerings.
Adelaide (Australia) has a population of 1,345,777 and is situated in South Australia, Oceania. This city serves as an important regional hub with solid connectivity.
Choose this route if your priority is reaching Perth (Australia) — a city of 2,085,973 in the Western Australia region of Oceania. Despite being the longer of the two at 2,722 km, it makes sense when Perth itself is the destination, the schedule fits better, or ticket prices are noticeably lower. Driving is realistic at this distance, with an estimated 3,539 km of road and a fuel cost band around $354 USD. The initial bearing is 275° (W), so a great-circle flight leaves Melbourne heading roughly W.
This route is the right call if you are heading to Adelaide (Australia) — a city of 1,345,777 in the South Australia region of Oceania. It is also the shorter of the two at 654 km, saving about 2h 35min of flying and around 527 kg of CO₂ per passenger. Driving is feasible — expect roughly 850 km of road and a fuel cost in the $85 USD range. Departing Melbourne, the great-circle bearing toward Adelaide is 297° (WNW).
Melbourne (-37.81°, 144.96°) and Perth (-31.95°, 115.86°) sit with a time-zone shift of -2 hours. Melbourne (-37.81°, 144.96°) and Adelaide (-34.93°, 138.60°) have a -1-hour offset. Both routes have manageable time-zone shifts, so jet lag should not be a major factor.
Adelaide is closer at 654 km, which is 2,068 km (76%) shorter.
2,722 km (1,691 miles). Flight: ~3h 54min.
654 km (406 miles). Flight: ~1h 19min.
Flying to Adelaide is faster at ~1h 19min, saving about 2h 35min compared to Perth.
All distances on SnapDistance are calculated using the Haversine formula, which determines the great-circle distance between two points on Earth's surface. This gives the shortest possible distance over the globe, which is the measurement used for aviation and navigation. Actual travel distances by road or rail are typically 20-40% longer due to terrain, borders, and infrastructure routing. Flight times assume 800 km/h cruising speed with 30 minutes for takeoff and landing. Driving estimates use 80 km/h average speed with a 30% road distance factor.
📍 Data: Coordinates from OpenStreetMap contributors. Distances calculated using the Haversine formula. Travel times are estimates only. Last verified: April 21, 2026.