Cheapflights Tip: The best prices from London to Sydney Kingsford Smith are usually found in May or March, booked 36 days in advance, depart on a Monday or Tuesday and return on a Tuesday
Cheap flight deals from London to Sydney
Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 20 August 2025.
Have a flexible travel schedule? Discover the best time to fly to Sydney from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
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How far ahead should I book a flight from London to Sydney?
Use this chart to determine the optimal time to book a return flight from London to Sydney. Price data was last updated on 8 August 2025.
The best time to book flights from London to Sydney is 36 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from London to Sydney?
Currently, May is the cheapest month in which you can book a flight from London to Sydney (average of £985). Flying from London to Sydney in July is currently the most expensive (average of £1,724). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from LON to SYD?
Find hourly flight availability from London to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 August 2025.
It’s optimal to fly from London to Sydney in the afternoon. By choosing this option you can save up to 27% on the cost of your flight, compared to a flight in the evening.
What is the cheapest day to fly from London to Sydney?
Use this chart to determine the cheapest time to fly return from London to Sydney. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their London to Sydney flight should consider departing on Monday afternoons when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
How much does it cost for a return flight from London to Sydney?
Weekly flight availability from London to Sydney
Explore weekly flight availability from London to Sydney. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 20 August 2025.
The most flights from LON to SYD are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).
What’s the top stopover airport for flights from London to Sydney?
Share of one-stop return flights from London to Sydney chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Singapore (SIN) – chosen by Cheapflights users on 15% of one-stop itineraries from London to Sydney on Cheapflights.
What’s the fastest stopover option from London to Sydney?
Shortest average travel time for one-stop one-way flights from London to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Dubai (DXB) have the shortest average one-way travel time for one-stop routes: 22h 20m.
What’s the fastest stopover option from London to Sydney?
Shortest average travel time for one-stop one-way flights from London to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Dubai (DXB) have the shortest average one-way travel time for one-stop routes: 22h 20m.
Which airport typically offers the quickest stopover for flights from London to Sydney?
Average stopover duration for one-stop one-way flights from London to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Singapore (SIN) offer the fastest connection on this route, with an average stopover time of 1h 23m.
Reviews of airlines servicing Sydney
Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated 20 August 2025.
Check out reviews from past customers who have flown with Emirates, Singapore Airlines, andChina Southern from London to Sydney to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
Related info for your journey
Find useful and relevant information for your journey from London to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly into for flights to Sydney from London?
For a flight from London to Sydney, you will be flying into Kingsford Smith. Sydney Kingsford Smith (SYD) is just 4.6 mi from the center of the city. Kingsford Smith is the only Sydney airport and it handles 3 inbound flights from London per day. 30 airlines have flights to Sydney Kingsford Smith from London on a regular basis.
How long is the flight from London to Sydney?
A quick flight from London to Sydney can take about 25h 05m. Cathay Pacific provides one of the quickest options available for as low as £868. Airlines will cover a distance of 10548 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from London to Sydney round-trip?
Flying on Hainan Airlines is currently your cheapest option to Sydney, with prices starting at £335. Additional return tickets that might be worth considering are offered by China Southern and Air China, with the lowest prices starting at £502 and £504, respectively. Hainan Airlines is 65% cheaper than the average price of flights available within the next 90 days to this destination.
What are the most popular routes from London to Sydney?
The most popular route from London to Sydney is London Heathrow - Sydney Kingsford Smith. You may also consider London Gatwick - Sydney Kingsford Smith or London Stansted - Sydney Kingsford Smith.
What are the cheapest flights from London to Sydney?
The cheapest flight price from London to Sydney is £909. On average you can expect to pay £3,937. The most popular route, (London Heathrow - Sydney Kingsford Smith), can usually be booked for £585.
Where are the most common stopover locations when flying from London to Sydney?
Most of the time, London to Sydney flights that have stopovers will stop in Shanghai. Shanghai is followed by Singapore in terms of the most popular stopover location on flights from London to Sydney. Guangzhou ranks third in terms of the most popular layover location on London to Sydney flights.
What are some popular things to do or see while on a stopover in Shanghai?
If you're on a stopover in Shanghai and looking for things to do, consider visiting People's Square, Jing'an Temple, or Shanghai Disneyland. People's Square, Jing'an Temple, and Shanghai Disneyland are located about 20.3 mi, 22.0 mi, and 8.7 mi, respectively from Shanghai Pu Dong.
What are some popular points of interest to see during a stopover in Singapore?
Sentosa, Merlion, and Universal Studios Singapore are the most popular attractions in Singapore if you're in need of something to do during your stopover. Sentosa, Merlion and Universal Studios Singapore are located about 13.4 mi, 10.5 mi, and 13.4 mi, respectively from Singapore Changi if you are interested in checking them out. Those looking to explore during their stopover in Singapore can hire a car from Singapore Changi for about £56 per day.
What are points of interest worth seeing during a stopover in Guangzhou?
Most Guangzhou visitors opt to spend their time at Baima Clothing Wholesale Market, Yide Lu, and Guangzhou Zoo. Baima Clothing Wholesale Market, Yide Lu, and Guangzhou Zoo are located about 17.3 mi, 19.5 mi, and 17.2 mi, respectively from Guangzhou Baiyun.
Where are the least popular stopover locations for London to Sydney flights?
The least popular stopover on flights from London to Sydney is Taipei City. London to Sydney flights stopping in Beijing are the next rarest. Beijing is followed by New Delhi in terms of the least popular stopover location for London to Sydney flights.
Can I find deals for flights from London to Sydney that include hotel bookings?
Yes. In addition to deals on London to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Sydney?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Sydney.
Can I find deals for business class flights from London to Sydney?
Yes. Cheapflights offers flight deals from London to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London to Sydney?
Currently, May is the cheapest month in which you can book a flight from London to Sydney (average of £985). Flying from London to Sydney in July is currently the most expensive (average of £1,724). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What are the most eco-friendly airlines from London to Sydney?
There are a few major airlines that serve the route to Sydney from London; these are Virgin Atlantic, Cathay Pacific, Singapore Airlines, and Etihad Airways. All these companies are extremely cautious and forward-thinking when it comes to sustainability and an eco-friendly atmosphere. Cathay Pacific strives to make every customer’s journey important and embrace their responsibility to serve future generations. They are also strongly committed to social responsibility and go an extra mile to reduce the environmental impacts of their company. Some of their aims are to reduce waste and also consumption of natural resources, to support communities that promote the conservation of natural resources and to ensure their stakeholders’ business decisions are also aligned with environmental, social and economic considerations. Virgin Atlantic also prioritise their commitments when it comes to sustainable travel. They have a goal to be net zero by 2050, they are reducing aircraft weight and have 100 per cent green electricity in their offices.
How to fly more sustainably from London to Sydney?
There are a few things you can do in order to fly more sustainably to Sydney from London. The first and most obvious one would be to fly directly, or with as little layovers as possible. While direct flights are not available on this route, there are many flights with two or three stopovers, and it would be wise to select those with only one stop in order to reduce environmental impact. Other steps you can take is to purchase your food beforehand to reduce food waste, and also bring your own reusable mugs for water and other beverages so you can reduce plastic waste.
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Fly from London to Sydney on these airlines
Choose from the following airlines for your flight from London to Sydney. Flights are based on user searches made on Cheapflights and were last updated on 20 August 2025.
Explore flights to Sydney departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 20 August 2025.
Discover the top 10 airlines that operate flights from London to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 20 August 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from London to Sydney?
When you search for this flight from London to Sydney, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from London to Sydney?
Millions of users choose and trust Cheapflights to book the best flight deals from London to Sydney for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from London to Sydney with no change fees?
Yes! Cheapflights helps users easily find flights from London to Sydney with no change fees.
Can Cheapflights notify me if prices for flights from London to Sydney become cheaper?
Not ready to book yet? You can track prices for flights from London to Sydney on Cheapflights with our Price Alert feature and get notified when better prices are available.
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