Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from London to Sydney
The best flight deals right now
London – Sydney
Outbound – 18 Dec 2026
2 stops
33h 0m BCN
AUH
Return – 3 Jan 2027
2 stops
34h 40m AUH
BCN
£1,377
2 days ago
London – Sydney
Outbound – 18 Dec 2026
2 stops
33h 0m BCN
AUH
Return – 3 Jan 2027
2 stops
34h 40m AUH
BCN
£1,474
yesterday
London – Sydney
Outbound – 18 Dec 2026
2 stops
31h 40m BCN
ICN
Return – 3 Jan 2027
3 stops
29h 0m £1,468
3 days ago
London – Sydney
Outbound – 18 Dec 2026
2 stops
33h 0m BCN
AUH
Return – 3 Jan 2027
2 stops
34h 40m AUH
BCN
£1,517
3 days ago
* Prices are in GBP per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that ticket availability and prices are subject to change and should not be considered as the final price quoted.
Cheapest flight
£953
Average price of a round trip
£1571
Average price recorded over the last 3 months for a round trip.
Flight duration
43h29
A flight from London to Sydney takes on average 43h29.
Best time
September
According to user searches, the ideal month to go to Sydney is September.
What is the cheapest month for this flight?
Monthly price data (Table View)
October
Oct
£855
November
Nov
£664
December
Dec
£824
January
Jan
£0
February
Feb
£525
March
Mar
£0
April
Apr
£0
May
May
£1,019
June
Jun
£3,270
July
Jul
£1,188
August
Aug
£1,133
September
Sept
£4,556
* The prices shown are an average per month of the prices found by Liligo users during the last 30 days.
Tips for finding cheap flights from London to Sydney
Check out our tips for booking your flight to Sydney (Australia) from London (United Kingdom) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is August, with an average ticket price of £427 (calculation over the last two years). The most touristic season corresponds to the months of December, March and June.
For an attractive price, it is advisable to buy your flight tickets at least 0 days before the departure date.
The airline offering the cheapest tickets is Air India. A ticket from the company Air India to Sydney costs on average £694.
The airlines that offer the most flights are .
Price of flight tickets from London to Sydney
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from £953 to £3096
- The average price of a flight ticket is about £1571
- Prices are lowest for stays in the month of August
- The month in which booking a ticket is cheaper is: September
info departure city :
London, United Kingdom
airports :
London City Airport (LCY)
London Gatwick Airport (LGW)
London Heathrow Airport (LHR)
London Luton Airport (LTN)
London-Stansted Airport (STN)
local time :
London is a city in the country United Kingdom, the time zone is [[timezone]]. In London, it is currently {fromLocalTime}, the temperature is on average 17°C, with a minimum of 14°C and a maximum of 21°C.
The city of London (LON) has 5 airport(s): London City, London Gatwick, London Heathrow, London Luton and London-Stansted
destination info :
Sydney, Australia
airports :
Sidney-Kingsford Smith Airport (SYD)
Rose Bay Water Airport (RSE)
Bankstown Airport (BWU)
local time :
Sydney is in the country Australia, the time zone is [[timezone]]. In Sydney, it is currently {toLocalTime}, the temperature is on average 19°C, with a minimum of 17°C and a maximum of 21°C.
The city of Sydney (SYD) has 3 airport(s): Sidney-Kingsford Smith, Rose Bay Water and Bankstown
Useful info about Sydney
What is the least touristic period to go to Sydney?
If you want to visit Sydney during the least touristic period, choose the month of September.
What is the most popular time to travel to Sydney?
In Sydney, the most touristic month is December. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight London - Sydney?
According to our data, it is recommended to book your flight 0 days before your departure. If you book your flight 1 weeks before your departure, you may find a price below average. You can also choose morning flights that are 31% cheaper than afternoon and evening flights. The cheapest day to book a flight London - Sydney is Wednesday.
What are the arrival and destination airports when travelling between London and Sydney?
When you leave, you can leave from London Gatwick, London Heathrow, London Luton or London-Stansted, and you will arrive at Sidney-Kingsford Smith.
How to reach London airport from the city centre?
The airport London City is located 16 km, London Gatwick is located 38 km, London Heathrow is located 35 km, London Luton is located 45 km or London-Stansted is located 49 km from the city centre. You can access it by using public transport, taking a taxi, or renting a car..
Are there other means of transport to go from London to Sydney?
Flights are the only means of transport listed on Liligo for this journey.
Are there big differences in weather between London and Sydney?
In summer, the average temperature is 13°C in Sydney and 18°C in London. The average rainfall in summer is 61 mm in Sydney and 63 mm in London.In summer, it is warmer in London and it rains less in Sydney. In winter, it is colder in Sydney and it rains more in Sydney.
