Cheap flights from London Heathrow to Sydney

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Compare London Heathrow to Sydney flight deals

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

Book the best Sydney fare with no extra fees

Flight deals from London Heathrow to Sydney

Looking for a cheap last-minute deal or the best return flight from London Heathrow to Sydney? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from London Heathrow to Sydney

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

London Heathrow to Sydney: Alternative routes

Compare routes from London Heathrow 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 foundP40,546
Cheapest month to flyMay

Finding cheap flights from London Heathrow to Sydney: Frequently asked questions

The best price we found for a return flight from London Heathrow to Sydney is P40,546. 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 Heathrow to Sydney. But we found flights with one or more stops from P40,546.
As of March 2025, there are no flights flying from London Heathrow to Sydney.
The cheapest month to fly from London Heathrow to Sydney is usually March 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to Sydney Airport on Wednesday, 7 May 2025.
No airlines currently offer direct flights between London Heathrow Airport 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.
Currently, China Eastern offers the cheapest flight tickets to Sydney.

Flying from London Heathrow Airport (LHR) to Sydney (Kingsford Smith) Airport (SYD): what you need to know

  • Be prepared for longer queues during popular months like July and other peak seasons. Arriving up to fours hours ahead of international flights and two hours for domestic departures is a smart move.

  • We make it a piece of cake to book a flight with a stopover. To look at the options for flights from London Heathrow Airport to Sydney (Kingsford Smith) Airport, uncheck 'Direct flights only.' Then, pick a flight with a stop long enough to tour your chosen city. Some popular stopovers between LHR and SYD are:

    • Dubai Airport

    • Perth Airport

    • Changi International Airport

  • Don't forget, you may need a visa to enter Australia. Visa regulations can vary and travel documentation requirements change frequently. Before reserving your cheap ticket from LHR to SYD, check with your airline and your destination country's local consulate or embassy for the most up-to-date information.

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

  • The best price we've seen for a one-way ticket from London Heathrow Airport to Sydney (Kingsford Smith) Airport is P27,861. The cheapest price for a return flight is P40,546. Keep in mind that fares can change due to demand when booking.

  • Don't wait until the last moment. You're more likely to find cheap tickets from LHR to SYD if you book ahead. Airlines often have some great early bird discounts.

  • Getting cheap tickets from London Heathrow Airport to Sydney (Kingsford Smith) Airport is more likely if you can be flexible with your dates. Use the 'Whole month' function to see the lowest fares throughout the month and bag a great deal.

  • Log into your online account or use the app to create a Price Alert. You'll get notified straight away if there's a better deal on this route. It's easy to do, and it'll save you from looking for cheap tickets from LHR to SYD every day.

  • Tailor your trip with filters. Pick your preferred departure and arrival times, airlines and total journey duration. You can also sort results by 'Cheapest,' 'Fastest' or 'Best' flights from London Heathrow Airport to Sydney (Kingsford Smith) Airport.

Handy information about London Heathrow Airport (LHR)

  • Located around 31 kilometres from central London, London Heathrow Airport can be reached in about 57 minutes by car, depending on traffic. The same journey by public transport is roughly 1 hour and 1 minute.

  • After a convenient hotel close to LHR? If you're boarding an early flight from London Heathrow Airport to Sydney (Kingsford Smith) Airport, these stays will have you sleeping moments from check-in:

Arriving at Sydney (Kingsford Smith) Airport (SYD)

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

  • Sydney (Kingsford Smith) Airport is approximately 18 kilometres from the centre of Sydney. With a cab or in your own car rental, the drive is about 21 minutes.

  • When travelling by public transport, expect a journey time of about 27 minutes.

When to fly to Sydney (Kingsford Smith) Airport (SYD)

  • The quietest month for a flight from London Heathrow Airport to Sydney (Kingsford Smith) Airport is April, while July is the busiest. Choose the best time to go to Sydney based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • When booking your flight from London Heathrow Airport to Sydney (Kingsford Smith) Airport, think about the kind of weather you enjoy. January is the warmest month in Sydney, with the temperature ranging from 17 ºC to 32 ºC.

  • July sees average temperatures of between 5 ºC and 19 ºC. Look for cheap tickets from LHR to SYD around that time if you want to travel when it's cooler.

More about Sydney

Complete your Sydney trip with hotels and a car rental

  • Once you've secured your cheap ticket to Sydney (Kingsford Smith) Airport, discover our low prices and exclusive offers on hotels. You can also compare a range of car rental companies in one go to find the best car rental price for your Sydney trip.

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