Cheap Flights from London to Sydney

Compare London to Sydney flight deals

Find the cheapest month or even day of the year to fly to Sydney

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Flight deals from London to Sydney Airport

Looking for a cheap last-minute deal or the best return flight from London to Sydney Airport? If you want to travel next month, return fares start from $1,725. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from London to Sydney

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London to Sydney flights are currently cheapest in June.

London to Sydney: Alternative routes

Compare routes from London to Sydney below. You may find an airport to fly into that's cheaper, faster, or easier than Sydney.

London to Sydney: Flight information

The things to know before you go.
Cheapest flight found$1,346
Cheapest month to flyJune

Finding cheap flights from London to Sydney: Frequently asked questions

The best price we found for a return flight from London to Sydney is $1,346. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from London to Sydney. But we found flights with one stop from $1,346.
As of March 2026, there are no flights flying from London to Sydney.
The cheapest month to fly from London to Sydney is usually June.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to Sydney Airport on Tuesday, 2 June 2026.
No airlines currently offer direct flights between London and Sydney Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Sydney but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Sydney is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Sydney is Air China .

Flying from London to Sydney Kingsford Smith International Airport (SYD): What you need to know

  • The timezone in Sydney is UTC+11, which is 11 hours ahead of London. Sydney Kingsford Smith International Airport is located in Sydney.

  • Your flight from London to SYD won't wait if you're running late, so show up at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • Flying during a peak time like July? Public holidays and other popular seasons can lead to longer queues and delays at check-in and security. Be extra cautious and get there up to four hours ahead of an international flight and two hours before domestic departures.

Airports in London

London Heathrow Airport (LHR)

  • We make it simple to book cheap flights from London to SYD that include a stopover. To explore your options departing from London Heathrow Airport (LHR), uncheck 'Direct flights only.' Then, choose a flight with a stop long enough to tour your chosen city. Major stopovers between LHR and SYD include:

    • Dubai International Airport (DXB)

    • Singapore Changi Airport (SIN)

    • Perth Airport (PER)

  • The journey from central London to LHR takes around 25 minutes by public transport. If you drive, ride-share or get a taxi, you'll cover the 24 kilometres in 45 minutes or so, depending on traffic.

  • Want a hassle-free start to your travels? Stay near London Heathrow Airport. Whether you're catching an early flight from London to Sydney Kingsford Smith International Airport or just don't want to be rushed, these hotels are the answer:

  • Of all flights leaving London Heathrow Airport, 78% arrive as scheduled at their destination.

London Gatwick Airport (LGW)

  • Break up your flight from London to Sydney Kingsford Smith International Airport with a stop so you can recharge or perhaps go somewhere you've never been before. Some popular stopovers between London Gatwick Airport and SYD include:

    • Dubai International Airport (DXB)

    • Singapore Changi Airport (SIN)

    • Doha Hamad International Airport (DOH)

  • You can reach LGW from central London in about 1 hour 5 minutes by car (depending on traffic conditions). The ride on public transport will take roughly 1 hour 20 minutes to cover the 48 kilometres or so.

  • Want to treat yourself to an extra night away before catching your London to SYD flight? Unwind in a hotel near London Gatwick Airport before your adventure officially begins. These stays are calling your name:

  • Flights from London Gatwick Airport have a reputation for punctuality, with 82% of them touching down on schedule.

London Stansted Airport (STN)

  • When booking your plane ticket from London to Sydney Kingsford Smith International Airport (SYD) out of London Stansted Airport (STN), you have stopover options to choose from. Consider making a detour to Dubai International Airport (DXB), one of the busiest connection points on this route.

  • STN is around 56 kilometres from central London. Driving from the city centre to the airport takes about 1 hour 5 minutes. If you're planning to take public transport, expect a journey of around 45 minutes.

  • Make catching an early London to Sydney Kingsford Smith International Airport flight the easiest part of your trip. Book a room at one of these hotels near London Stansted Airport and get to your gate with plenty of time to spare:

  • STN has an on-time performance rate of 80%. This means the majority of its flights land on schedule and your travel plans stay on track.

About Sydney Kingsford Smith International Airport (SYD)

  • The last thing you need is a long journey to your hotel if you're arriving on a late flight from London to Sydney Kingsford Smith International Airport. Get comfy at one of these accommodation options near SYD instead:

  • Get the best deal by reserving your ride around two weeks ahead of your London to Sydney Kingsford Smith International Airport flight.

Getting from Sydney Kingsford Smith International Airport (SYD) to central Sydney

  • Sydney Kingsford Smith International Airport to central Sydney is around 8 kilometres. If you're taking a taxi or renting a car, do some research to make your trip as easy as possible. Journey times will vary based on traffic conditions and the time of day.

  • If you're travelling by public transport, expect a journey of about 15 minutes.

How to find the cheapest flights from London to Sydney Kingsford Smith International Airport (SYD)

  • Right now, $717 is the best price we've found for a one-way ticket from London to Sydney Kingsford Smith International Airport. The cheapest price for a return flight is $1,346. Remember fares may change due to availability at the time of booking.

  • To find cheap flights from London to SYD, book in advance. Airlines tend to offer lower fares when flights first go on sale.

  • If you can be flexible with your travel plans, use the 'Whole month' search tool. It'll give you the cheapest price across the month when searching for your London to Sydney Kingsford Smith International Airport ticket.

  • Finding a cheap plane ticket from London to SYD is a piece of cake with Price Alerts. Simply create one of these automatic alerts and we'll get in touch when there's a price drop.

  • Find a cheap flight from London to Sydney Kingsford Smith International Airport by using the search filters. Choose your ideal times, airlines and number of stops, then sort the results by 'Cheapest' for the best deals.

The best time to fly from London to Sydney Kingsford Smith International Airport (SYD)

  • It's time to figure out when to book your flight from London to Sydney Kingsford Smith International Airport (SYD). July is when most people travel to Sydney. If you like your getaways a little more chill, go in December.

  • Book a London to SYD plane ticket departing in January if you're eager to explore the city during its warmest month. You can expect temperatures in Sydney to range from 17ºC to 32ºC.

  • July sees temperatures of between 5ºC and 19ºC. Look for cheap tickets from London to Sydney Kingsford Smith International Airport around that time if you want to travel in cooler conditions.

More about Sydney

  • When it comes to looking for somewhere to rest your head, you'll find the best stays in Sydney right here. Browse these hotels once you've locked in your flight from London to Sydney Kingsford Smith International Airport:

  • You'll find loads of awesome things to do in Sydney when you're ready to sightsee. Make your way to Sydney Harbour Bridge followed by Sydney Harbour and Sydney Opera House.

Explore more of Australia

  • Canberra is just one of the many places in Australia waiting to be discovered once you've seen Sydney. Around 241 kilometres away to the southwest, check out popular attractions including National Gallery of Australia, National Portrait Gallery and Museum of Australian Democracy.

  • Around 129 kilometres northeast of Sydney, Newcastle is another essential stop in Australia. No visit is complete without checking out Merewether Beach, Nobbys Beach and Newcastle Beach.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.