Sydney, Australia → London, United Kingdom · ✈ 21h 45min · 🚗 276h 9min
9,176 nautical miles · Time difference: -10h behind · Direction: northwest
The distance from Sydney to London is 16,994 km (10,560 miles). The fastest way to travel is by flight. A direct flight takes approximately 21h 45min.
The straight-line distance from Sydney, Australia to London, United Kingdom is approximately 16,994 kilometers (10,560 miles or 9,176 nautical miles). This measurement uses the Haversine formula, computing the great-circle distance — the shortest path between two points on Earth's surface.
London is located northwest of Sydney. Sydney is in Oceania, in the New South Wales region of Australia, while London is in Europe, in England, United Kingdom. This intercontinental route spans from Oceania to Europe.
| Mode | Distance | Est. Time | Best For |
|---|---|---|---|
| ✈️ Flight | 16,994 km | ~21h 45min | Best option for speed |
Our recommendation: flight is typically the best way to travel from Sydney to London. For 16,994 km, flying saves significant time and is usually the most practical choice.
Sydney is a major city in Australia with a population of approximately 5,312,163. Located in the New South Wales region, it is an important hub in Oceania. As one of the largest cities in Australia, Sydney is a major international gateway with extensive air connections and multiple airports.
→ See all distances from Sydney
London is a notable city in United Kingdom with a population of approximately 8,982,000. Situated in the England region, it serves as a key destination in Europe. London is one of United Kingdom's largest cities, offering major airport hubs, extensive public transport, and a wide range of accommodation options.
→ See all distances from London
At 16,994 km, this is one of the longer routes on the globe, spanning from Oceania to Europe. For comparison, London to Sydney is about 17,000 km — roughly half the circumference of the Earth.
At 16,994 km, Sydney to London is one of the world's longer routes, covering 42.4% of Earth's circumference (40,075 km).
Combined, Sydney and London have a population of over 14,294,163 people, making this a major urban corridor.
This route crosses from Oceania to Europe, spanning 10 timezones.
This 16,994 km journey from Oceania to Europe 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.
See how the Sydney to London distance compares to similar routes:
The straight-line distance from Sydney to London is approximately 16,994 kilometers (10,560 miles, 9,176 nautical miles).
A direct flight takes approximately 21h 45min, based on 800 km/h cruising speed plus 30 minutes for takeoff and landing.
Estimated driving time is approximately 276h 9min, based on 80 km/h average speed and roads being ~30% longer than straight-line distance.
London is approximately -10h behind compared to Sydney.
The estimated road distance is approximately 22,092 km, which is about 30% longer than the 16,994 km straight-line distance.
📍 Data: Coordinates from OpenStreetMap contributors. Distances calculated using the Haversine formula. Travel times are estimates only. Last verified: April 7, 2026.