Flight time from London to Sydney

About 16,994 km (10,560 miles), an estimated nonstop flight time of 21h 45m.

Distance

16,994 km

10,560 miles

Flight time

21h 45m

nonstop, estimated

Time difference

9h ahead

Sydney

From

Departure time (local)

London to Sydney

16,994 km

10,560 miles apart, as the crow flies

Estimated flight time

21h 45m

Time difference

—

A straight-line (great-circle) estimate. Real flights are a little longer because of air-traffic routing, winds and any stopovers, so your landing time is approximate.

London to Sydney at a glance

Flying from London, United Kingdom to Sydney, Australia covers a great-circle distance of roughly 16,994 kilometres (10,560 miles). At a typical jet cruising speed, that is an estimated nonstop flight time of about 21h 45m, before you add taxi time, any air-traffic delays and the effect of the wind. A connection through a hub will add the layover on top.

Sydney is about 9 hours ahead of London, so expect some jet lag from crossing 9 time zones, which tends to hit harder when you fly east and lose hours. The interactive calculator above updates the time difference for today's date, and you can swap the cities or pick a different pairing in a tap.

London to Sydney FAQ

How long is the flight from London to Sydney?

London to Sydney is an estimated nonstop flight time of about 21h 45m, based on a great-circle distance of 16,994 km (10,560 miles). Real flight times vary with winds, air-traffic routing and any stopovers.

How far is London from Sydney?

The straight-line (great-circle) distance from London to Sydney is about 16,994 kilometres, or 10,560 miles.

What is the time difference between London and Sydney?

Sydney is about 9 hours ahead of London. Crossing 9 time zones means some jet lag, especially flying east.

Last reviewed 2026-06-04. Distance is a great-circle estimate; flight time excludes winds, routing and stopovers.