Cheap flights from London to Sydney from $942
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
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 Tuesday or Wednesday and return on a Monday
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 11 July 2025.
Round-trip from | $1,499 |
---|---|
One-way from | $942 |
Popular in | December |
Cheapest in | May |
Average price | $2,496 |
Good round-trip deal | $2,538 or less |
Good one-way deal | $2,208 or less |
Find flight deals from London to Sydney
Cheapest flights from London to SydneyExplore the most affordable flight options available from London to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.
Explore the most affordable flight options available from London to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from London to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 11 July 2025.
Use the filters below to find and compare flights from London to Sydney that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonSydney
LGW - SYD
LGWSYD
London Gatwick
Thu 11/9
18:00-19:30
2 stops40h 30m
Sydney Kingsford Smith
Tue 21/10
13:50-15:00
2 stops35h 10m
LondonSydney
LHR - SYD
LHRSYD
London Heathrow
Wed 22/10
22:10-09:25
1 stop25h 15m
Sydney Kingsford Smith
Mon 27/10
22:00-17:55
2 stops30h 55m
LondonSydney
LGW - SYD
LGWSYD
London Gatwick
Mon 17/11
10:30-10:00
1 stop36h 30m
Sydney Kingsford Smith
Tue 13/1
12:00-14:00
1 stop37h 00m
LondonSydney
LGW - SYD
LGWSYD
London Gatwick
Fri 5/9
12:00-19:25
1 stop22h 25m
Sydney Kingsford Smith
Fri 3/10
10:15-18:30
2 stops41h 15m
LondonSydney
LHR - SYD
LHRSYD
London Heathrow
Mon 13/10
22:05-20:30
2 stops36h 25m
Sydney Kingsford Smith
Sat 25/10
21:45-20:10
2 stops56h 25m
LondonSydney
LHR - SYD
LHRSYD
London Heathrow
Sat 1/11
13:30-18:50
1 stop42h 20m
Sydney Kingsford Smith
Sat 8/11
20:20-06:35
1 stop45h 15m
LondonSydney
LHR - SYD
LHRSYD
London Heathrow
Sun 26/10
20:25-15:30
1 stop32h 05m
Sydney Kingsford Smith
Thu 30/10
20:40-17:50
1 stop32h 10m
LondonSydney
STN - SYD
STNSYD
London Stansted
Fri 7/11
16:20-09:25
3 stops30h 05m
Sydney Kingsford Smith
Sun 9/11
14:00-14:35
3 stops35h 35m
LondonSydney
LHR - SYD
LHRSYD
London Heathrow
Fri 19/9
21:20-07:40
3 stops49h 20m
Sydney Kingsford Smith
Sun 5/10
21:30-18:40
1 stop31h 10m
LondonSydney
LTN - SYD
LTNSYD
London Luton
Wed 13/8
06:00-19:25
2 stops28h 25m
Sydney Kingsford Smith
Tue 14/10
13:50-17:05
2 stops37h 15m
Best time to book a flight from London to Sydney
Have a flexible travel schedule? Discover the best time to fly to Sydney from London with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from London to Sydney
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 27 June 2025.
To ensure you get the cheapest price possible for a flight from London to Sydney, you should look to book at least 36 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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 $129). Flying from London to Sydney in October is currently the most expensive (average of $171). 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 11 July 2025.
It’s typically best to fly out from London to Sydney in the afternoon. Doing so could potentially save you 25% on the flight price compared to flying in the evening, which is usually more expensive.
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 6 October 2024.
Travellers seeking maximum savings on their London to Sydney flight should consider departing on Tuesday 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.
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 11 July 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).
How much does it cost for a return flight from London to Sydney?
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 11 July 2025.
See what other customers who have flown with Emirates, China Southern, andSWISS from London to Sydney have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Food
Comfort
Crew
Overall
Entertainment
Reviews
Hemshika,June 2025
DXB - LGW
Boarding
Food
Comfort
Crew
Overall
Entertainment
Reviews
Hemshika,June 2025
DXB - LGW
Boarding
Food
Comfort
Crew
Overall
Entertainment
Reviews
Hemshika,June 2025
DXB - LGW
Boarding
Food
Comfort
Crew
Overall
Entertainment
Reviews
Hemshika,June 2025
DXB - LGW
Boarding
Food
Comfort
Crew
Overall
Entertainment
Reviews
Hemshika,June 2025
DXB - LGW
Boarding
Food
Comfort
Crew
Overall
Entertainment
Reviews
Hemshika,June 2025
DXB - LGW
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.
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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 11 July 2025.
Top 10 airlines flying from London to Sydney
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 647,157 searches. Data last updated 11 July 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from London to Sydney?
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Why should you use Cheapflights to find cheap flight tickets from London to Sydney?
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Can Cheapflights find flights from London to Sydney with no change fees?
Need flexible booking options for your flight to Sydney from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from London to Sydney become cheaper?
Of course! You can now track prices for flights from London to Sydney and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.