Cheap flights from London to Sydney from £437

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SYD
1 May — 8 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Sydney Kingsford Smith are usually found in May or June, booked 46 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Cheap flight deals from London to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from London to Sydney
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 1 April 2026.

Sat 9/514:45
LHR
-
SYD
1 stop30h 25m
Etihad Airways
Wed 13/515:40
SYD
-
LHR
1 stop30h 05m
Etihad Airways
Deal found 29/3£744
Mon 1/612:25
LTN
-
SYD
2 stops32h 45m
Multiple Airlines
Sun 7/611:25
SYD
-
LTN
2 stops34h 50m
Multiple Airlines
Deal found 27/3£744
Wed 28/1010:30
LGW
-
SYD
1 stop40h 05m
China Eastern
Wed 18/1121:30
SYD
-
LGW
1 stop44h 00m
China Eastern
Deal found 28/3£745
Mon 19/1021:20
LHR
-
SYD
1 stop30h 15m
China Eastern
Mon 16/1112:00
SYD
-
LHR
1 stop40h 30m
China Eastern
Deal found 27/3£745
Thu 29/1009:25
LGW
-
SYD
2 stops36h 50m
Multiple Airlines
Tue 3/1114:20
SYD
-
LGW
2 stops38h 45m
Multiple Airlines
Deal found 28/3£746
Tue 12/521:45
LHR
-
SYD
1 stop34h 05m
Etihad Airways
Mon 15/621:30
SYD
-
LHR
1 stop24h 15m
Etihad Airways
Deal found 27/3£746
Tue 20/1018:00
LGW
-
SYD
1 stop30h 00m
China Eastern
Tue 17/1121:30
SYD
-
LGW
1 stop27h 30m
China Eastern
Deal found 27/3£747
Fri 20/1117:20
STN
-
SYD
2 stops26h 15m
Turkish Airlines
Fri 4/1221:30
SYD
-
STN
2 stops29h 50m
Turkish Airlines
Deal found 27/3£747
Sun 1/1121:30
LHR
-
SYD
2 stops35h 50m
China Southern
Tue 17/1111:25
SYD
-
LHR
2 stops37h 35m
China Southern
Deal found 28/3£747
Tue 14/421:10
LHR
-
SYD
1 stop34h 40m
Etihad Airways
Tue 12/515:40
SYD
-
LHR
1 stop24h 20m
Etihad Airways
Deal found 27/3£747
Wed 21/1011:35
LGW
-
SYD
3 stops35h 25m
China Eastern
Wed 18/1121:30
SYD
-
LGW
1 stop44h 00m
China Eastern
Deal found 31/3£748
Mon 9/1121:30
LHR
-
SYD
2 stops48h 55m
China Southern
Sun 22/1122:10
SYD
-
LHR
2 stops31h 25m
China Southern
Deal found 30/3£748

Find 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 1 April 2026.

Round-trip from

£744

One-way from

£437

Popular in

December

Cheapest in

May

Average price

£980

Good round-trip deal

£1,130 or less

Good one-way deal

£832 or less
Etihad Airways
  • Etihad Airways
  • 9/5-13/5
  • 2 total stops
  • 60h 30m total
  • London to Sydney
6/5
  • 6/5
  • 2 total stops
  • 46h 25m total
  • London to Sydney
Highest demand for flights based on searches. 8% potential increase in price (£66 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£26 potential savings vs. average return price).
Average for round-trip flights in April 2026
Price to beat on a round-trip flight from London (LON) to Sydney Kingsford Smith.
Price to beat on a one-way flight from London (LON) to Sydney Kingsford Smith.

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 858,174 searches. Data last updated 1 April 2026.
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

Cheapest return flight

LondonSydney

LTN - SYD

LTNSYD

London Luton

Mon 1/6

12:25-06:10

2 stops32h 45m

Sydney Kingsford Smith

Sun 7/6

11:25-13:15

2 stops34h 50m

£744

LondonSydney

LTN - SYD

LTNSYD

London Luton

Mon 11/5

09:55-06:10

2 stops35h 15m

Sydney Kingsford Smith

Mon 18/5

20:50-22:15

2 stops34h 25m

£754

LondonSydney

LTN - SYD

LTNSYD

London Luton

Wed 13/5

21:50-16:50

2 stops34h 00m

Sydney Kingsford Smith

Wed 20/5

15:40-14:00

2 stops31h 20m

£808

LondonSydney

LTN - SYD

LTNSYD

London Luton

Sun 7/6

11:00-06:10

2 stops34h 10m

Sydney Kingsford Smith

Sun 14/6

15:40-13:25

2 stops30h 45m

£811

LondonSydney

LTN - SYD

LTNSYD

London Luton

Thu 14/5

05:40-16:50

2 stops26h 10m

Sydney Kingsford Smith

Thu 21/5

20:50-23:00

2 stops35h 10m

£834

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 19/4

09:15-16:50

1 stop22h 35m

Sydney Kingsford Smith

Sat 2/5

20:50-07:00

1 stop43h 10m

£834

LondonSydney

SEN - SYD

SENSYD

London Southend

Mon 18/5

11:10-06:10

2 stops34h 00m

Sydney Kingsford Smith

Wed 3/6

15:40-13:00

2 stops30h 20m

£864

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 2/9

21:10-10:45

1 stop28h 35m

Sydney Kingsford Smith

Thu 1/10

22:10-16:30

1 stop27h 20m

£873

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Thu 13/8

10:25-08:20

1 stop36h 55m

Sydney Kingsford Smith

Mon 31/8

20:50-07:25

1 stop43h 35m

£938

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 25/4

20:45-16:50

1 stop35h 05m

Sydney Kingsford Smith

Wed 22/7

15:40-12:45

1 stop30h 05m

£968

Flights are sorted by cheapest return flights first.

Deals found on 30/3

Showing 1-10 of 60 resultsSorted by cheapest first
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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.
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.

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 13 March 2026.

The best time to book flights from London to Sydney is 46 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, June is the cheapest month in which you can book a flight from London to Sydney (average of £524). Flying from London to Sydney in July is currently the most expensive (average of £756). 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 1 April 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to Sydney as you normally would.

How much does it cost for a return flight from London to Sydney?

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 14% of one-stop itineraries from London to Sydney on Cheapflights.

What’s the cheapest stopover airport for flights from London to Sydney?

Average return fare for one-stop flights from London to Sydney, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Jakarta (CGK) is the most affordable one-stop option, with an average return flight price of £349.

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 Jakarta (CGK) have the shortest average one-way travel time for one-stop routes: 12h 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 08m.

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 1 April 2026.
Check out reviews from past customers who have flown with Cathay Pacific,China Southern, andEtihad Airways 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.

Comfort

7.6

Overall

7.6

Boarding

7.9

Entertainment

7.8

Crew

8.1

Food

7.3

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.

Comfort

7.6

Overall

7.6

Boarding

7.9

Entertainment

7.8

Crew

8.1

Food

7.3

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.

Comfort

7.6

Overall

7.6

Boarding

7.9

Entertainment

7.8

Crew

8.1

Food

7.3

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.

Comfort

7.6

Overall

7.6

Boarding

7.9

Entertainment

7.8

Crew

8.1

Food

7.3

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.

Comfort

7.6

Overall

7.6

Boarding

7.9

Entertainment

7.8

Crew

8.1

Food

7.3

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.

Comfort

7.6

Overall

7.6

Boarding

7.9

Entertainment

7.8

Crew

8.1

Food

7.3

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.

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 1 inbound flight from London per day. 29 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 22h 35m. Etihad Airways provides one of the quickest options available for as low as £834. Airlines will cover a distance of 10568 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 £207. Additional return tickets that might be worth considering are offered by China Southern and Air China, with the lowest prices starting at £482 and £537, respectively. Hainan Airlines is 78% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from London to Sydney one-way?

    The cheapet airlines for a one-way flight from London to Sydney are China Eastern (£342), Air China (£344), and Tianjin Airlines (£357).

  • What are the most popular routes from London to Sydney?

  • What are the cheapest flights from London to Sydney?

    The cheapest flight price from London to Sydney is £682. On average you can expect to pay £4,375. The most popular route, (London Heathrow - Sydney Kingsford Smith), can usually be booked for £639.

  • Where are the most common stopover locations when flying from London to Sydney?

  • 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, Shanghai Disneyland, or Shanghai Dianchun Hall. People's Square, Shanghai Disneyland, and Shanghai Dianchun Hall are located about 20.3 mi, 8.7 mi, and 19.4 mi, respectively from Shanghai Pu Dong.

  • What are some popular points of interest to see during a stopover in Abu Dhabi?

    Etihad Towers, Emirates Palace, and Emirates Park Zoo are the most popular attractions in Abu Dhabi if you're in need of something to do during your stopover. Etihad Towers, Emirates Palace and Emirates Park Zoo are located about 20.8 mi, 21.1 mi, and 7.9 mi, respectively from Abu Dhabi Zayed Intl if you are interested in checking them out. Those looking to explore during their stopover in Abu Dhabi can hire a car from Abu Dhabi Zayed Intl for about £19 per day.

  • What are points of interest worth seeing during a stopover in Guangzhou?

    Most Guangzhou visitors opt to spend their time at Huaisheng Mosque, Baima Clothing Wholesale Market, and Yide Lu. Huaisheng Mosque, Baima Clothing Wholesale Market, and Yide Lu are located about 18.9 mi, 17.3 mi, and 19.5 mi, respectively from Guangzhou Baiyun.

  • Where are the least popular stopover locations 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, June is the cheapest month in which you can book a flight from London to Sydney (average of £524). Flying from London to Sydney in July is currently the most expensive (average of £756). 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.

See more FAQs

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Bondi Beach
Wollongong
Parramatta
Coogee
Manly

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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 1 April 2026.

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 858,174 searches. Data last updated 1 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Hainan AirlinesCheapest£207Average£785FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Air ChinaCheapest£537Average£776FlexibilityNo cancel feeOn-time67%
Search Air China flights
Asiana AirlinesCheapest£688Average£1,488FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
SWISSCheapest£690Average£1,047FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Turkish AirlinesCheapest£697Average£1,072FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
China AirlinesCheapest£772Average£889FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Air New ZealandCheapest£779Average£1,245FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
LufthansaCheapest£837Average£968FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Vietnam AirlinesCheapest£847Average£949FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
British AirwaysCheapest£868Average£1,156FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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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.

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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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