Our cheapest offers for flights from London to Sydney

Here you can compare cheap flights from London (LON) to Sydney (SYD) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Sydney. Prices and availability may change at any time.

	Outbound	Return	Airlines	Price
Best option London Sydney	Outbound 13/05/25 1 Stopover (PVG) MU0214, MU0561 30h 00min	Return 09/06/25 1 Stopover (PVG) MU0736, MU0201 43h 10min	China Eastern Airlines	£619
London Sydney Pay attention to transfer at connecting flight	Outbound 21/04/25 2 Stopovers (AMS, AUH) KL0984, EY0042, EY0450 35h 10min	Return 02/05/25 3 Stopovers (CAN, FRA, ZRH) CZ0326, CZ0331, LX4815, LX0456 34h 35min	KLM, Etihad Airways	£1,749
London Sydney	Outbound 13/05/25 2 Stopovers (CGO, CAN) CZ0654, CZ3391, CZ0301 61h 10min	Return 09/06/25 2 Stopovers (CAN, CGO) CZ0326, CZ3960, CZ0653 41h 25min	China Southern Airlines	£628
London Sydney	Outbound 13/05/25 2 Stopovers (CGO, CAN) CZ0654, CZ3391, CZ0301 61h 10min	Return 09/06/25 2 Stopovers (CAN, CGO) CZ0326, CZ3960, CZ0653 41h 25min	China Southern Airlines	£636
London Sydney	Outbound 13/05/25 2 Stopovers (CGO, CAN) CZ0654, CZ3391, CZ0301 61h 10min	Return 09/06/25 2 Stopovers (CAN, CGO) CZ0326, CZ3960, CZ0653 41h 25min	China Southern Airlines	£638
London Sydney	Outbound 13/05/25 1 Stopover (CAN) CZ0304, CZ0301 36h 30min	Return 09/06/25 1 Stopover (CAN) CZ0326, CZ0303 41h 55min	China Southern Airlines	£666
London Sydney	Outbound 13/05/25 1 Stopover (CAN) CZ0304, CZ0301 36h 30min	Return 09/06/25 1 Stopover (CAN) CZ0326, CZ0303 41h 55min	China Southern Airlines	£668
London Sydney	Outbound 13/05/25 1 Stopover (PEK) CA0856, CA0173 31h 10min	Return 03/06/25 1 Stopover (PEK) CA0174, CA0855 33h 50min	Air China	£672
London Sydney	Outbound 13/05/25 1 Stopover (CAN) CZ0304, CZ0301 36h 30min	Return 09/06/25 1 Stopover (CAN) CZ0326, CZ0303 41h 55min	China Southern Airlines	£675
London Sydney	Outbound 13/05/25 1 Stopover (PEK) CA0856, CA0173 31h 10min	Return 03/06/25 1 Stopover (PEK) CA0174, CA0855 33h 50min	Air China	£680

Tips and tricks to help you find cheap flights from London to Sydney

Useful information about the flight from London to Sydney

Flights from London to Sydney

The flight route from London (LON) to Sydney (SYD) in Australia is extremely popular in the UK. At a distance of 10,600 miles, the flight time will always take at least 22 hours. Aircraft will almost always land at least once en route to refuel, the actual duration of the journey can therefore vary. This is one of the longest haul routes and airlines operating on this route include Quantas, British Airways, Virgin Atlantic, Cathay and Emirates. There are various routes to choose from, with stopovers either in the Middle East, Asia or even to the west, in the United States. A direct flight from London to Sydney is operated by Qantas and British Airways, taking between 22 and 23 hours.

Cheap flight from London to Sydney

Prices of air tickets fluctuate according to the season and a low cost flight can be purchased for as little as £800 return. Longer flights with two stopovers are the cheapest, but could take as long as 40 hours. Last minute deals are usually not that much more expensive but will be harder to find.

Sydney Airport

The departure airports in London are Gatwick and Heathrow. There is only one destination airport in Sydney, Sydney Kingsford Smith Airport, which is the busiest airport in Australia. The airport is located about 10 miles south of central Sydney. Transport links to and from Sydney airport are provided by buses and trains. Those with late arrival times also have the option of staying at one of the Sydney airport hotels. As the international gateway to Australia, Sydney airport also has connections to many further airports in Australia.

Important flight information

Flight information: London - Sydney

Outbound and return from	£618.39
Flight duration	min. 20:30 / max. 21:00
Return flight duration	min. 22:00/ max. 22:25
Distance	17020 km
Flights per week	16
Departure airport	Airport London (LCY, LGW, LHR, LTN, STN, SEN) (LON)
Arrival airport	Airport Sydney Kingsford Smith (SYD)
Destination country	Flights to Australia

Alternative routes to Australia

Alternative flights to Sydney

Flight London City - Sydney from £1,055
Flight Manchester - Sydney from £852
Flight Edinburgh - Sydney from £987
Flight Glasgow - Sydney from £800
Flight London Gatwick - Sydney from £619
Flight London Heathrow - Sydney from £666