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Cheap flights from London to Sydney from $849

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 26/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SYD
9 Jun — 16 Jun1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Sydney Kingsford Smith are usually found in May or November, booked 46 days in advance, depart on a Monday or Wednesday and return on a Monday

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 10 May 2026.

Wed 11/1117:00
LGW
-
SYD
1 stop33h 35m
China Eastern
Mon 16/1112:00
SYD
-
LGW
1 stop29h 30m
China Eastern
Deal found 9/5$1,402
Tue 9/611:35
LGW
-
SYD
1 stop36h 25m
China Eastern
Tue 16/611:00
SYD
-
LGW
1 stop37h 00m
China Eastern
Deal found 10/5$1,405
Wed 16/921:20
LHR
-
SYD
1 stop26h 40m
China Eastern
Sat 3/1010:00
SYD
-
LHR
2 stops41h 40m
China Eastern
Deal found 9/5$1,405
Tue 3/1110:30
LGW
-
SYD
1 stop36h 30m
China Eastern
Sat 14/1121:30
SYD
-
LGW
1 stop44h 00m
China Eastern
Deal found 10/5$1,407
Thu 18/618:00
LGW
-
SYD
1 stop33h 35m
China Eastern
Wed 15/711:00
SYD
-
LGW
1 stop28h 40m
China Eastern
Deal found 9/5$1,411
Sat 13/611:35
LGW
-
SYD
1 stop40h 00m
China Eastern
Tue 25/811:00
SYD
-
LGW
1 stop37h 00m
China Eastern
Deal found 9/5$1,412
Mon 19/1011:35
LGW
-
SYD
1 stop36h 25m
China Eastern
Sun 25/1011:05
SYD
-
LGW
3 stops54h 25m
China Eastern
Deal found 8/5$1,413
Sat 31/1021:00
LHR
-
SYD
1 stop29h 35m
China Eastern
Sat 14/1121:30
SYD
-
LHR
1 stop31h 00m
China Eastern
Deal found 9/5$1,416
Tue 1/918:00
LGW
-
SYD
1 stop30h 00m
China Eastern
Tue 8/911:00
SYD
-
LGW
1 stop28h 40m
China Eastern
Deal found 9/5$1,422
Fri 4/911:35
LGW
-
SYD
1 stop36h 25m
China Eastern
Tue 15/911:00
SYD
-
LGW
1 stop37h 00m
China Eastern
Deal found 10/5$1,424
Mon 26/1017:00
LGW
-
SYD
1 stop33h 35m
China Eastern
Fri 13/1121:30
SYD
-
LGW
1 stop27h 30m
China Eastern
Deal found 9/5$1,427
Mon 8/621:20
LHR
-
SYD
1 stop30h 15m
China Eastern
Sun 14/610:05
SYD
-
LHR
2 stops41h 35m
China Eastern
Deal found 7/5$1,427

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 10 May 2026.

Round-trip from

$1,402

One-way from

$849

Popular in

December

Cheapest in

May

Average price

$1,524
China Eastern
  • China Eastern
  • 3/6-10/6
  • 2 total stops
  • 61h 05m total
  • London to Sydney
Search Deals
26/8
  • 26/8
  • 2 total stops
  • 50h 10m total
  • London to Sydney
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($195 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($88 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 10 May 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

LGW - SYD

LGWSYD

London Gatwick

Sun 1/11

17:00-13:35

1 stop33h 35m

Sydney Kingsford Smith

Thu 5/11

21:30-14:00

1 stop27h 30m

$1,402

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 31/10

21:00-10:00

1 stop26h 00m

Sydney Kingsford Smith

Tue 10/11

21:30-17:30

1 stop31h 00m

$1,515

LondonSydney

LTN - SYD

LTNSYD

London Luton

Sat 6/6

12:45-09:00

2 stops35h 15m

Sydney Kingsford Smith

Sat 13/6

11:00-12:20

2 stops34h 20m

$1,715

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 4/11

21:00-13:35

1 stop29h 35m

Sydney Kingsford Smith

Sun 8/11

21:30-17:30

1 stop31h 00m

$1,718

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 6/9

14:45-06:10

1 stop30h 25m

Sydney Kingsford Smith

Fri 2/10

15:40-12:45

1 stop30h 05m

$1,791

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 17/6

21:20-08:00

3 stops73h 40m

Sydney Kingsford Smith

Tue 30/6

11:00-18:40

1 stop40h 40m

$1,851

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Sun 31/5

17:35-19:10

2 stops40h 35m

Sydney Kingsford Smith

Fri 19/6

11:05-09:55

2 stops31h 50m

$1,899

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 14/10

21:10-11:45

1 stop28h 35m

Sydney Kingsford Smith

Sun 25/10

22:10-16:55

1 stop29h 45m

$1,911

LondonSydney

LTN - SYD

LTNSYD

London Luton

Sun 7/6

07:00-19:25

2 stops27h 25m

Sydney Kingsford Smith

Sun 14/6

14:10-09:00

2 stops27h 50m

$1,920

LondonSydney

LCY - SYD

LCYSYD

London City

Mon 2/11

19:05-07:15

2 stops25h 10m

Sydney Kingsford Smith

Wed 18/11

15:15-08:40

2 stops28h 25m

$1,922

Flights are sorted by cheapest return flights first.

Deals found on 5/5

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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?

To ensure you get the cheapest price possible for a flight from London to Sydney, you should look to book at least 70 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, June is the cheapest month in which you can book a flight from London to Sydney (average of $1,521). Flying from London to Sydney in December is currently the most expensive (average of $2,517). 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 10 May 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 10 May 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 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.

Abu Dhabi (AUH) – chosen by Cheapflights users on 16% 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.

Shanghai (PVG) is the most affordable one-stop option, with an average return flight price of $1,532.

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 Manama (BAH) have the shortest average one-way travel time for one-stop routes: 19h 00m.

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 Dubai (DXB) offer the fastest connection on this route, with an average stopover time of 1h 26m.

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 10 May 2026.
See what other customers who have flown with Cathay Pacific,Qantas Airways, andChina Southern 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.
Cathay Pacific
7.6
Good
1,322 reviews
Check prices

Entertainment

7.8

Crew

8.1

Food

7.3

Boarding

7.9

Overall

7.6

Comfort

7.6

Reviews

1 / 20
4.0
Okay

Tejbir,Apr 2026

YVR - HKG

Flight was late 30 min so was not able to catch next flight. Instead of Delhi they send to Hyderabad and from their to Delhi. It took full 8hours more. Lot of trouble and confusion 😕
Cathay Pacific
7.6
Good
1,322 reviews
Cathay Pacific
7.6
Good
1,322 reviews
Check prices

Entertainment

7.8

Crew

8.1

Food

7.3

Boarding

7.9

Overall

7.6

Comfort

7.6

Reviews

1 / 20
4.0
Okay

Tejbir,Apr 2026

YVR - HKG

Flight was late 30 min so was not able to catch next flight. Instead of Delhi they send to Hyderabad and from their to Delhi. It took full 8hours more. Lot of trouble and confusion 😕
Qantas Airways
7.5
Good
1,034 reviews
Cathay Pacific
7.6
Good
1,322 reviews
Check prices

Entertainment

7.8

Crew

8.1

Food

7.3

Boarding

7.9

Overall

7.6

Comfort

7.6

Reviews

1 / 20
4.0
Okay

Tejbir,Apr 2026

YVR - HKG

Flight was late 30 min so was not able to catch next flight. Instead of Delhi they send to Hyderabad and from their to Delhi. It took full 8hours more. Lot of trouble and confusion 😕
China Southern
7.4
Good
151 reviews
Cathay Pacific
7.6
Good
1,322 reviews
Check prices

Entertainment

7.8

Crew

8.1

Food

7.3

Boarding

7.9

Overall

7.6

Comfort

7.6

Reviews

1 / 20
4.0
Okay

Tejbir,Apr 2026

YVR - HKG

Flight was late 30 min so was not able to catch next flight. Instead of Delhi they send to Hyderabad and from their to Delhi. It took full 8hours more. Lot of trouble and confusion 😕
Etihad Airways
7.3
Good
1,434 reviews
Cathay Pacific
7.6
Good
1,322 reviews
Check prices

Entertainment

7.8

Crew

8.1

Food

7.3

Boarding

7.9

Overall

7.6

Comfort

7.6

Reviews

1 / 20
4.0
Okay

Tejbir,Apr 2026

YVR - HKG

Flight was late 30 min so was not able to catch next flight. Instead of Delhi they send to Hyderabad and from their to Delhi. It took full 8hours more. Lot of trouble and confusion 😕
China Eastern
7.3
Good
211 reviews
Cathay Pacific
7.6
Good
1,322 reviews
Check prices

Entertainment

7.8

Crew

8.1

Food

7.3

Boarding

7.9

Overall

7.6

Comfort

7.6

Reviews

1 / 20
4.0
Okay

Tejbir,Apr 2026

YVR - HKG

Flight was late 30 min so was not able to catch next flight. Instead of Delhi they send to Hyderabad and from their to Delhi. It took full 8hours more. Lot of trouble and confusion 😕

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 7.5 km from the centre vof the city. Kingsford Smith is the only Sydney airport and it handles 3 inbound flights from London per day. 15 airlines have flights to Sydney Kingsford Smith from London on a regular basis.

  • How long is the flight from London to Sydney?

    China Eastern, China Airlines, and SWISS can get you from London to Sydney in just under 25h 10m. Your travel time can differ by up to 4h 25m. The distance from London to Sydney is about 16975 km. This flight may include one or multiple stops.

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

    Our cheapest airline available from London to Sydney is China Eastern. Our recent data shows that you can find tickets from as low as $985 on this airline. Additional options worth looking into are Air China and China Southern, starting at $1,085 and $1,169 round-trip. China Eastern is priced at 45% lower than the current average price of a flight leaving 3 months from now.

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

    $645 is the cheapest one-way deal found within the past few days, from Air China. You may also be able to find cheap deals on China Southern and China Eastern, with prices starting from $656 and $689, respectively.

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

    Most travellers choose London Heathrow - Sydney Kingsford Smith, London Gatwick - Sydney Kingsford Smith or London Stansted - Sydney Kingsford Smith when deciding on the best route from London to Sydney.

  • 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 $1,521). Flying from London to Sydney in December is currently the most expensive (average of $2,517). 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

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Penrith
Katoomba
Terrigal
Lithgow
Manly
Cronulla
Bondi Beach
Leura
Randwick
Coogee

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 10 May 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest$985Average$1,496FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest$1,085Average$2,481FlexibilityNo cancel feeOn-time67%
Search Air China flights
China SouthernCheapest$1,169Average$1,519FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air IndiaCheapest$1,314Average$1,906FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Malaysia AirlinesCheapest$1,386Average$1,902FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Qatar AirwaysCheapest$1,387Average$2,198FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Turkish AirlinesCheapest$1,392Average$1,812FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Etihad AirwaysCheapest$1,434Average$2,178FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Cathay PacificCheapest$1,436Average$1,888FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
British AirwaysCheapest$1,514Average$1,627FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Sydney from London today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from London to Sydney?

Cheapflights helps you find that perfect flight to Sydney from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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.

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