London, United Kingdom → Perth, Australia · ✈ 18h 36min
7,818 nautical miles · Time difference: +8h ahead · Direction: southeast
The distance from London to Perth is 14,479 km (8,997 miles). The fastest way to travel is by flight. A direct flight takes approximately 18h 36min.
The straight-line distance from London, United Kingdom to Perth, Australia is approximately 14,479 kilometers (8,997 miles or 7,818 nautical miles). This measurement uses the Haversine formula, computing the great-circle distance — the shortest path between two points on Earth's surface.
Perth is located southeast of London. London is in Europe, in the England region of United Kingdom, while Perth is in Oceania, in Western Australia, Australia. This intercontinental route spans from Europe to Oceania.
| Mode | Distance | Est. Time | Best For |
|---|---|---|---|
| ✈️ Flight | 14,479 km | ~18h 36min | Best option for speed |
Our recommendation: flight is typically the best way to travel from London to Perth. For 14,479 km, flying saves significant time and is usually the most practical choice.
London sits at 51.5074°N, 0.1278°W, while Perth is located at 31.9505°S, 115.8605°E. The initial compass bearing from London to Perth is 93° (E), so a great-circle flight path leaves London heading roughly E. Because the Earth is curved, the actual heading shifts gradually along the route — pilots and navigation systems update it continuously instead of holding a single fixed compass bearing.
The latitude difference is 83.46° and the longitude difference is 115.99°. Each degree of latitude represents about 111 km, which is one reason cross-latitude routes feel longer even when the map looks similar to east–west journeys.
The geographic midpoint between London and Perth is approximately 17.5242°N, 71.6828°E. This is the great-circle halfway position — the spot where you would be exactly 7,240 km from each city. On long-haul flights this point usually falls over open ocean or remote terrain, which is why in-flight maps often look "empty" mid-route.
Perth is roughly 8 hours ahead of London. When it is 09:00 in London, it is approximately 17:00 in Perth. A time difference of 8 hours typically produces noticeable jet lag — most travelers need about one recovery day per time zone crossed. Daylight saving time can shift the offset by an hour during certain months, so confirm the exact difference for your specific travel dates.
London uses the Pound Sterling (GBP), while Perth uses the Australian Dollar (AUD). Plan to exchange currency before departure or use a low-fee travel card on arrival — airport rates are typically the worst available. Both destinations share English as a primary language, simplifying signage, transit, and everyday interactions.
London is a major city in United Kingdom with a population of approximately 8,982,000. Located in the England region, it is an important hub in Europe. As one of the largest cities in United Kingdom, London is a major international gateway with extensive air connections and multiple airports.
→ See all distances from London
Perth is a notable city in Australia with a population of approximately 2,085,973. Situated in the Western Australia region, it serves as a key destination in Oceania. Perth offers solid transport connections and a variety of arrival options as a major city in Australia.
→ See all distances from Perth
At 14,479 km, this is one of the longer routes on the globe, spanning from Europe to Oceania. For comparison, London to Sydney is about 17,000 km — roughly half the circumference of the Earth.
At 14,479 km, London to Perth is one of the world's longer routes, covering 36.1% of Earth's circumference (40,075 km).
Combined, London and Perth have a population of over 11,067,973 people, making this a major urban corridor.
This route crosses from Europe to Oceania, spanning 8 timezones.
This 14,479 km journey from Europe to Oceania is one of the world's longer routes. At this distance, jet lag becomes a significant factor — plan for at least one recovery day per 3 time zones crossed.
The straight-line distance from London to Perth is approximately 14,479 kilometers (8,997 miles, 7,818 nautical miles).
A direct flight takes approximately 18h 36min, based on 800 km/h cruising speed plus 30 minutes for takeoff and landing.
Estimated driving time is approximately 235h 17min, based on 80 km/h average speed and roads being ~30% longer than straight-line distance.
Perth is approximately +8h ahead compared to London.
The estimated road distance is approximately 18,823 km, which is about 30% longer than the 14,479 km straight-line distance.
📍 Data: Coordinates from OpenStreetMap contributors. Distances calculated using the Haversine formula. Travel times are estimates only. Last verified: August 5, 2026.