Cheap flights from London to Sydney from $867

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SYD
12 Oct — 19 Oct1
1 adult
1 adult, Economy

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 Thursday 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 12 September 2025.

Round-trip from

$1,452

One-way from

$867

Popular in

December

Cheapest in

May

Average price

$1,727

Good round-trip deal

$2,257 or less

Good one-way deal

$1,860 or less
China Southern
  • China Southern
  • 14/10-28/10
  • 4 total stops
  • 75h 00m total
  • London to Sydney
China Eastern
  • China Eastern
  • 18/9
  • 2 total stops
  • 28h 40m total
  • London to Sydney
Highest demand for flights based on searches. 9% potential increase in price ($321 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease ($95 potential savings vs. average return price).
Average for round-trip flights in September 2025
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.

Find 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 12 September 2025.

Tue 14/1021:00LHR - SYD
2 stops37h 25mChina Southern
Tue 28/1011:25SYD - LHR
2 stops37h 35mChina Southern
Deal found 11/9$1,452
Tue 23/911:35LGW - SYD
2 stops35h 05mChina Eastern
Mon 27/1012:00SYD - LGW
1 stop29h 30mChina Eastern
Deal found 11/9$1,457
Mon 29/1210:30LGW - SYD
1 stop40h 05mChina Eastern
Wed 28/112:00SYD - LGW
1 stop29h 30mChina Eastern
Deal found 11/9$1,458
Tue 21/1021:00LHR - SYD
2 stops37h 25mChina Southern
Mon 27/1011:25SYD - LHR
1 stop42h 10mChina Southern
Deal found 11/9$1,458
Tue 21/1011:35LGW - SYD
3 stops59h 25mChina Eastern
Tue 28/1012:00SYD - LGW
1 stop29h 30mChina Eastern
Deal found 11/9$1,460
Wed 29/1021:30LHR - SYD
2 stops48h 55mChina Southern
Thu 20/1109:20SYD - LHR
2 stops43h 35mChina Southern
Deal found 11/9$1,460
Fri 3/1011:35LGW - SYD
2 stops59h 05mChina Eastern
Sat 11/1012:20SYD - LGW
2 stops52h 10mChina Eastern
Deal found 10/9$1,461
Mon 22/921:20LHR - SYD
1 stop26h 40mChina Eastern
Wed 1/1012:00SYD - LHR
2 stops39h 40mChina Eastern
Deal found 12/9$1,461
Sun 26/1010:30LGW - SYD
3 stops61h 30mChina Eastern
Tue 11/1112:00SYD - LGW
1 stop37h 00mChina Eastern
Deal found 10/9$1,463
Mon 29/1217:00LGW - SYD
1 stop33h 35mChina Eastern
Fri 30/121:30SYD - LGW
1 stop27h 30mChina Eastern
Deal found 10/9$1,464
Tue 2/1222:00LHR - SYD
1 stop35h 20mChina Southern
Sun 18/115:15SYD - LHR
1 stop38h 20mChina Southern
Deal found 11/9$1,464
Sun 28/1217:00LGW - SYD
1 stop33h 35mChina Eastern
Thu 29/113:30SYD - LGW
2 stops52h 00mChina Eastern
Deal found 10/9$1,466

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 12 September 2025.
Use the filters below to find and compare flights from London to Sydney that are best for you.

Fly from

London

Fly to

Sydney

Route

Depart

Return

Price

LondonSydney

LTN - SYD

LTNSYD

London Luton

Sat 1/11

11:00-10:00

2 stops36h 00m

Sydney Kingsford Smith

Mon 17/11

20:05-16:20

2 stops31h 15m

$1,565

LondonSydney

LTN - SYD

LTNSYD

London Luton

Mon 27/10

13:25-10:25

2 stops34h 00m

Sydney Kingsford Smith

Mon 10/11

20:05-16:20

2 stops31h 15m

$1,633

LondonSydney

LTN - SYD

LTNSYD

London Luton

Mon 20/10

16:10-08:50

3 stops30h 40m

Sydney Kingsford Smith

Mon 27/10

20:05-16:20

2 stops31h 15m

$1,662

LondonSydney

LTN - SYD

LTNSYD

London Luton

Mon 9/3

08:40-18:50

2 stops47h 10m

Sydney Kingsford Smith

Sun 29/3

21:55-22:45

2 stops34h 50m

$1,666

LondonSydney

LTN - SYD

LTNSYD

London Luton

Mon 3/11

08:40-13:05

2 stops65h 25m

Sydney Kingsford Smith

Fri 7/11

20:05-16:20

2 stops31h 15m

$1,672

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 20/2

21:15-12:15

1 stop28h 00m

Sydney Kingsford Smith

Sun 22/3

22:10-16:55

1 stop29h 45m

$1,770

LondonSydney

STN - SYD

STNSYD

London Stansted

Wed 11/3

20:15-07:00

1 stop23h 45m

Sydney Kingsford Smith

Mon 16/3

21:45-12:05

1 stop25h 20m

$1,785

LondonSydney

STN - SYD

STNSYD

London Stansted

Wed 11/3

14:05-07:00

1 stop29h 55m

Sydney Kingsford Smith

Tue 17/3

06:00-18:00

1 stop23h 00m

$1,785

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Wed 12/11

09:40-18:35

1 stop21h 55m

Sydney Kingsford Smith

Wed 26/11

21:10-11:40

1 stop25h 30m

$1,794

LondonSydney

STN - SYD

STNSYD

London Stansted

Mon 23/2

14:05-22:30

1 stop21h 25m

Sydney Kingsford Smith

Wed 11/3

06:00-18:00

1 stop23h 00m

$1,816

Flights are sorted by cheapest return flights first.

Deals found on 12/9

Showing 1-10 of 60 results
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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 29 August 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 12 September 2025.

It’s typically best to fly out from London to Sydney in the afternoon. Doing so could potentially save you 24% on the flight price compared to flying in the evening, which is usually more expensive.

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 12 September 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?

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.

Shanghai (PVG) – chosen by Cheapflights users on 17% 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 $1,684.

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 Singapore (SIN) have the shortest average one-way travel time for one-stop routes: 21h 39m.

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 31m.

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 12 September 2025.
See what other customers who have flown with Singapore Airlines, Cathay Pacific, 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.

Entertainment

8.0

Food

7.7

Overall

8.1

Comfort

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Entertainment

8.0

Food

7.7

Overall

8.1

Comfort

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Entertainment

8.0

Food

7.7

Overall

8.1

Comfort

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Entertainment

8.0

Food

7.7

Overall

8.1

Comfort

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Entertainment

8.0

Food

7.7

Overall

8.1

Comfort

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Entertainment

8.0

Food

7.7

Overall

8.1

Comfort

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

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 Airlines, Emirates, and Etihad Airways can get you from London to Sydney in just under 23h 45m. Your travel time can differ by up to 10h 15m. The distance from London to Sydney is about 16943 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 Air China. Our recent data shows that you can find tickets from as low as $1,049 on this airline. Additional options worth looking into are China Eastern and China Southern, starting at $1,077 and $1,091 round-trip. Air China is priced at 46% 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?

    $915 is the cheapest one-way deal found within the past few days, from China Eastern. You may also be able to find cheap deals on Malaysia Airlines and SWISS, with prices starting from $1,172 and $1,179, respectively.

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

  • What are the cheapest flights from London to Sydney?

    Looking for the cheapest flight from London to Sydney? While on average our users pay $2,310, our data indicates the cheapest price to be $1,735. The most popular route (London Heathrow - Sydney Kingsford Smith), is priced around $1,126.

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

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

    The majority of Shanghai visitors spend their time at People's Square, Shanghai Disneyland, and Shanghai WIld Animal Park. People's Square, Shanghai Disneyland, and Shanghai WIld Animal Park are located about 32.7 km, 14.1 km, and 12.7 km, respectively from Shanghai Pu Dong.

  • 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, 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.

See more FAQs

Travelling to a place near Sydney?

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

Browse thousands of different options on Cheapflights for your next trip

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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 12 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$1,049Average$2,394FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest$1,077Average$1,716FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest$1,091Average$1,508FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air IndiaCheapest$1,483Average$2,067FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Malaysia AirlinesCheapest$1,517Average$1,989FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
China AirlinesCheapest$1,546Average$1,757FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Etihad AirwaysCheapest$1,551Average$2,509FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Cathay PacificCheapest$1,642Average$1,855FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
British AirwaysCheapest$1,656Average$2,235FlexibilityNo cancel feeOn-time70%
Search British Airways flights
EmiratesCheapest$1,688Average$2,317FlexibilityNo cancel feeOn-time75%
Search Emirates flights

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.

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