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$520+ Cheap flights from London (LON) to Sydney (SYD)

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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SYD
Apr 12 — Apr 191
Sun 4/12
Sun 4/19
1 adult, Economy
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Cheap flight deals from London to Sydney

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 March 13, 2026.

This China Eastern deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:00 pm
LGW
-
SYD
1 stop30h 00m
China Eastern
Sun 6/148:30 pm
SYD
-
LGW
1 stop27h 30m
China Eastern
Deal found 3/9$942
This China Eastern deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/39:20 pm
LHR
-
SYD
3 stops49h 40m
China Eastern
Sun 6/710:05 am
SYD
-
LHR
2 stops41h 35m
China Eastern
Deal found 3/8$942
This China Eastern deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/911:35 am
LGW
-
SYD
1 stop40h 00m
China Eastern
Mon 5/118:30 pm
SYD
-
LGW
1 stop27h 30m
China Eastern
Deal found 3/8$943
This FlightHub deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/99:30 pm
LHR
-
SYD
2 stops48h 55m
China Southern
Mon 11/239:20 am
SYD
-
LHR
2 stops44h 15m
China Southern
Deal found 3/9$944
This AirAsia deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AirAsia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/210:25 am
LGW
-
SYD
1 stop36h 55m
AirAsia X
Wed 7/158:50 pm
SYD
-
LGW
1 stop43h 15m
AirAsia X
Deal found 3/8$947
This China Eastern deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/59:20 pm
LHR
-
SYD
1 stop26h 40m
China Eastern
Mon 6/810:00 am
SYD
-
LHR
2 stops41h 40m
China Eastern
Deal found 3/8$948
This China Eastern deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1211:35 am
LGW
-
SYD
2 stops35h 25m
China Eastern
Sat 6/208:30 pm
SYD
-
LGW
1 stop27h 30m
China Eastern
Deal found 3/9$949
This China Eastern deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/109:20 pm
LHR
-
SYD
1 stop26h 40m
China Eastern
Sun 5/3110:05 am
SYD
-
LHR
3 stops41h 35m
China Eastern
Deal found 3/11$949
This China Eastern deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/711:35 am
LGW
-
SYD
2 stops35h 25m
China Eastern
Sun 6/148:30 pm
SYD
-
LGW
1 stop27h 30m
China Eastern
Deal found 3/8$950
This China Eastern deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2711:35 am
LGW
-
SYD
3 stops35h 25m
China Eastern
Wed 5/1311:00 am
SYD
-
LGW
1 stop37h 00m
China Eastern
Deal found 3/11$951
This Flightnetwork deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:10 pm
LHR
-
SYD
1 stop25h 15m
China Southern
Sat 6/132:10 pm
SYD
-
LHR
1 stop38h 10m
China Southern
Deal found 3/10$951
This Mytrip deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2110:10 pm
LHR
-
SYD
1 stop36h 15m
China Southern
Mon 4/279:45 pm
SYD
-
LHR
2 stops51h 30m
China Southern
Deal found 3/11$952

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 March 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$942
(China Eastern)

One-way from

$520
(Trip.com)

Popular in

December

Cheapest in

May

Average price

$1,243
Provider with most accurate pricing for London (LON)-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Sydney Kingsford Smith flights.
Search Deals
From London (LON) to Sydney Kingsford Smith
Search Deals
One-way flight from London (LON) to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($116 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated March 13, 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 round-trip

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Tue 5/12

11:35 am-8:00 am

2 stops35h 25m

Sydney Kingsford Smith

Tue 6/16

11:00 am-6:40 am

1 stop28h 40m

$950

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Mon 5/11

6:00 pm-8:00 am

3 stops53h 00m

Sydney Kingsford Smith

Thu 6/18

11:00 am-6:40 am

1 stop28h 40m

$950

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Thu 5/14

2:05 pm-4:50 pm

2 stops41h 45m

Sydney Kingsford Smith

Mon 5/18

3:40 pm-9:55 am

2 stops27h 15m

$994

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Thu 5/14

6:00 pm-9:00 am

1 stop30h 00m

Sydney Kingsford Smith

Mon 5/18

11:00 am-6:40 am

1 stop28h 40m

$1,011

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Tue 5/12

11:35 am-9:00 am

1 stop36h 25m

Sydney Kingsford Smith

Sat 6/20

8:30 pm-6:40 am

1 stop43h 10m

$1,011

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 5/13

9:20 pm-12:35 pm

1 stop30h 15m

Sydney Kingsford Smith

Wed 6/17

11:00 am-6:40 pm

1 stop40h 40m

$1,015

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 4/17

11:20 am-6:10 am

2 stops33h 50m

Sydney Kingsford Smith

Tue 5/26

8:50 pm-3:10 pm

2 stops27h 20m

$1,071
Quickest round-trip

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Thu 4/23

7:00 am-7:10 pm

2 stops27h 10m

Sydney Kingsford Smith

Sat 5/9

8:50 pm-4:40 pm

2 stops28h 50m

$1,086

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 6/1

9:20 pm-9:00 am

1 stop26h 40m

Sydney Kingsford Smith

Thu 8/6

11:00 am-6:40 pm

1 stop40h 40m

$1,095

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 4/21

6:30 pm-7:10 pm

2 stops39h 40m

Sydney Kingsford Smith

Tue 4/28

8:50 pm-4:40 pm

2 stops28h 50m

$1,127

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 34 resultsSorted by cheapest first
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2
3
4

Compare providers for flights from London to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from London to Sydney in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
GotogatePrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
BudgetAirPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London-Sydney flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 round-trip flight from London to Sydney. Price data was last updated on March 6, 2026.

Booking 46 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $688). Flying from London to Sydney in July is currently the most expensive (average of $998). 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 March 13, 2026.

When flying from London to Sydney, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 March 13, 2026.

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 to fly round-trip from London to Sydney?

What’s the top layover airport for flights from London to Sydney?

Share of 1-stop round-trip flights from London to Sydney chosen by Cheapflights users in the past 12 months, using the same layover each way.

Shanghai (PVG) – chosen by Cheapflights users on 23% of 1-stop itineraries from London to Sydney on Cheapflights.

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

Average round-trip fare for 1-stop flights from London to Sydney, chosen by Cheapflights users in the past 12 months, with the same layover each way.

New Delhi (DEL) is the most affordable 1-stop option, with an average round-trip price of $1,014.

What’s the fastest layover option from London to Sydney?

Shortest average travel time for 1-stop one-way flights from London to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Abu Dhabi (AUH) have the shortest average one-way travel time for 1-stop routes: 22h 00m.

Which airport typically offers the quickest layover for flights from London to Sydney?

Average layover duration for 1-stop one-way flights from London to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Dubai (DXB) offer the fastest connection on this route, with an average layover time of 1h 43m.

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 March 13, 2026.
Read through reviews of airlines operating flights from London to Sydney, such as Cathay Pacific,China Southern, andEtihad Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Cathay Pacific
7.6
Good
1,203 reviews

Comfort

7.6

Entertainment

7.8

Boarding

7.9

Overall

7.6

Food

7.3

Crew

8.1

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.
Cathay Pacific
7.6
Good
1,203 reviews
Cathay Pacific
7.6
Good
1,203 reviews

Comfort

7.6

Entertainment

7.8

Boarding

7.9

Overall

7.6

Food

7.3

Crew

8.1

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.
China Southern
7.4
Good
142 reviews
Cathay Pacific
7.6
Good
1,203 reviews

Comfort

7.6

Entertainment

7.8

Boarding

7.9

Overall

7.6

Food

7.3

Crew

8.1

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.
Etihad Airways
7.3
Good
1,426 reviews
Cathay Pacific
7.6
Good
1,203 reviews

Comfort

7.6

Entertainment

7.8

Boarding

7.9

Overall

7.6

Food

7.3

Crew

8.1

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.
Malaysia Airlines
7.3
Good
294 reviews
Cathay Pacific
7.6
Good
1,203 reviews

Comfort

7.6

Entertainment

7.8

Boarding

7.9

Overall

7.6

Food

7.3

Crew

8.1

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.
China Eastern
7.2
Good
198 reviews
Cathay Pacific
7.6
Good
1,203 reviews

Comfort

7.6

Entertainment

7.8

Boarding

7.9

Overall

7.6

Food

7.3

Crew

8.1

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?

    Most people fly into Sydney Kingsford Smith (SYD) if they book a flight to Sydney from London. On average, Kingsford Smith has 3 inbound flights from London per day from 7 airlines. Sydney Kingsford Smith is conveniently located just 4.6 mi from Sydney’s city center.

  • How long is the flight from London to Sydney?

    Departing from London to Sydney will take you 35h 25m. There are 10568 mi between London and Sydney. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from London to Sydney round-trip?

    Currently priced at $757, Etihad Airways will fly you from London to Sydney and back. In addition to Etihad Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from China Southern and Air India - these airlines can fly you to your destination from $840 and $852, respectively. These flights start at 41% lower than the current average price 3 months from now.

  • 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 vacation 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 $688). Flying from London to Sydney in July is currently the most expensive (average of $998). 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.

See more FAQs

Traveling to a place near Sydney?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for London to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Sydney flights
Gatwick to Sydney flights

Top 7 airlines flying from London to Sydney

Discover the top 7 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 2,558,603 searches. Data last updated March 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$757Average$1,391FlexibilityNo cancel feeOn-time75%
China SouthernCheapest$840Average$989FlexibilityNo cancel feeOn-time69%
Air IndiaCheapest$852Average$1,137FlexibilityNo cancel feeOn-timeN/A
China EasternCheapest$866Average$1,025FlexibilityNo cancel feeOn-time62%
Singapore AirlinesCheapest$1,015Average$1,685FlexibilityNo cancel feeOn-time81%
Cathay PacificCheapest$1,138Average$1,190FlexibilityNo cancel feeOn-time72%
British AirwaysCheapest$1,210Average$1,577FlexibilityNo cancel feeOn-time70%

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