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Cheap flights from London to Sydney from $820

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SYD
2 May — 9 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 Wednesday or Monday and return on a Tuesday

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 2 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$1,418
Mon 2/1110:30
LGW
-
SYD
1 stop36h 30m
China Eastern
Mon 16/1112:00
SYD
-
LGW
1 stop29h 30m
China Eastern
Deal found 28/3$1,421
Sun 31/509:30
LHR
-
SYD
1 stop22h 20m
Etihad Airways
Thu 4/621:30
SYD
-
LHR
1 stop30h 15m
Etihad Airways
Deal found 30/3$1,421
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$1,423
Wed 29/421:10
LHR
-
SYD
1 stop34h 40m
Etihad Airways
Sun 17/515:40
SYD
-
LHR
1 stop24h 20m
Etihad Airways
Deal found 28/3$1,423
Sun 8/1117:00
LGW
-
SYD
1 stop30h 00m
China Eastern
Fri 13/1112:00
SYD
-
LGW
1 stop37h 00m
China Eastern
Deal found 2/4$1,424
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$1,424
Sat 31/1017:00
LGW
-
SYD
1 stop30h 00m
China Eastern
Tue 10/1121:30
SYD
-
LGW
1 stop27h 30m
China Eastern
Deal found 2/4$1,426
Sun 17/509:30
LHR
-
SYD
1 stop22h 20m
Etihad Airways
Sat 23/520:50
SYD
-
LHR
1 stop24h 55m
Etihad Airways
Deal found 29/3$1,426
Wed 21/1011:35
LGW
-
SYD
2 stops59h 25m
China Eastern
Sun 15/1121:30
SYD
-
LGW
1 stop44h 00m
China Eastern
Deal found 31/3$1,427
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$1,427
Tue 8/911:35
LGW
-
SYD
2 stops35h 25m
Multiple Airlines
Tue 15/920:50
SYD
-
LGW
2 stops43h 40m
Multiple Airlines
Deal found 29/3$1,428

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 2 April 2026.

Round-trip from

$1,418

One-way from

$820

Popular in

December

Cheapest in

May

Average price

$1,868

Good one-way deal

$1,879 or less
Etihad Airways
  • Etihad Airways
  • 9/5-13/5
  • 2 total stops
  • 60h 30m total
  • London to Sydney
Search Deals
3/5
  • 3/5
  • 2 total stops
  • 51h 35m total
  • London to Sydney
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($239 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($94 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a one-way flight from London (LON) to Sydney Kingsford Smith.
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 2 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

Wed 13/5

21:50-16:50

2 stops34h 00m

Sydney Kingsford Smith

Wed 20/5

15:40-14:00

2 stops31h 20m

$1,541

LondonSydney

LTN - SYD

LTNSYD

London Luton

Mon 8/6

15:15-06:10

2 stops29h 55m

Sydney Kingsford Smith

Fri 12/6

15:40-14:35

2 stops31h 55m

$1,558

LondonSydney

LTN - SYD

LTNSYD

London Luton

Fri 1/5

12:30-06:10

2 stops32h 40m

Sydney Kingsford Smith

Tue 19/5

15:40-13:45

2 stops31h 05m

$1,587

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

$1,590

LondonSydney

LTN - SYD

LTNSYD

London Luton

Mon 18/5

09:55-06:10

2 stops35h 15m

Sydney Kingsford Smith

Thu 4/6

21:30-22:10

2 stops33h 40m

$1,613

LondonSydney

LTN - SYD

LTNSYD

London Luton

Sun 17/5

13:10-06:10

2 stops32h 00m

Sydney Kingsford Smith

Mon 1/6

15:40-14:35

2 stops31h 55m

$1,615

LondonSydney

LTN - SYD

LTNSYD

London Luton

Wed 3/6

06:10-16:50

2 stops25h 40m

Sydney Kingsford Smith

Mon 15/6

15:40-10:35

2 stops27h 55m

$1,643

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

$1,648

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 22/9

21:10-10:45

1 stop28h 35m

Sydney Kingsford Smith

Fri 2/10

22:10-16:30

1 stop27h 20m

$1,731

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Mon 22/6

18:00-09:00

1 stop30h 00m

Sydney Kingsford Smith

Mon 6/7

10:00-06:40

3 stops53h 40m

$1,893

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.

To ensure you get the cheapest price possible for a flight from London to Sydney, you should look to book at least 46 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 $1,000). Flying from London to Sydney in July is currently the most expensive (average of $1,441). 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 2 April 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.

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 $1,598.

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 2 April 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
1,239 reviews
Check prices

Crew

8.1

Food

7.3

Boarding

7.9

Overall

7.6

Comfort

7.6

Entertainment

7.8

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
1,239 reviews
Cathay Pacific
7.6
Good
1,239 reviews
Check prices

Crew

8.1

Food

7.3

Boarding

7.9

Overall

7.6

Comfort

7.6

Entertainment

7.8

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.
Qantas Airways
7.5
Good
1,016 reviews
Cathay Pacific
7.6
Good
1,239 reviews
Check prices

Crew

8.1

Food

7.3

Boarding

7.9

Overall

7.6

Comfort

7.6

Entertainment

7.8

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
146 reviews
Cathay Pacific
7.6
Good
1,239 reviews
Check prices

Crew

8.1

Food

7.3

Boarding

7.9

Overall

7.6

Comfort

7.6

Entertainment

7.8

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
1,432 reviews
Cathay Pacific
7.6
Good
1,239 reviews
Check prices

Crew

8.1

Food

7.3

Boarding

7.9

Overall

7.6

Comfort

7.6

Entertainment

7.8

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
200 reviews
Cathay Pacific
7.6
Good
1,239 reviews
Check prices

Crew

8.1

Food

7.3

Boarding

7.9

Overall

7.6

Comfort

7.6

Entertainment

7.8

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 7.5 km from the centre vof the city. Kingsford Smith is the only Sydney airport and it handles 0 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, China Eastern, and Turkish Airlines can get you from London to Sydney in just under 26h 45m. Your travel time can differ by up to 3h 15m. The distance from London to Sydney is about 17008 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 $1,030 on this airline. Additional options worth looking into are Air China and China Southern, starting at $1,135 and $1,214 round-trip. China Eastern is priced at 44% 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?

    $675 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 Eastern and China Southern, with prices starting from $705 and $737, 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.

  • What are the cheapest flights from London to Sydney?

    Looking for the cheapest flight from London to Sydney? While on average our users pay $2,622, our data indicates the cheapest price to be $1,538. The most popular route (London Heathrow - Sydney Kingsford Smith), is priced around $1,183.

  • 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 $1,000). Flying from London to Sydney in July is currently the most expensive (average of $1,441). 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
Terrigal
Katoomba
Lithgow
Manly
Bondi Beach
Coogee
Cronulla
Leura
Randwick

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 2 April 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest$1,030Average$1,565FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest$1,135Average$2,360FlexibilityNo cancel feeOn-time67%
Search Air China flights
China SouthernCheapest$1,214Average$1,581FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air IndiaCheapest$1,375Average$1,947FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Qatar AirwaysCheapest$1,451Average$2,300FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Malaysia AirlinesCheapest$1,452Average$1,956FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Turkish AirlinesCheapest$1,456Average$1,896FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Etihad AirwaysCheapest$1,485Average$2,371FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
China AirlinesCheapest$1,496Average$1,649FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Cathay PacificCheapest$1,502Average$1,907FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific 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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