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Cheap flights from London to Sydney from $818

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 17/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SYD
8 May — 15 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 Wednesday 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 8 April 2026.

Tue 8/918:00
LGW
-
SYD
1 stop30h 00m
China Eastern
Tue 27/1021:30
SYD
-
LGW
1 stop27h 30m
China Eastern
Deal found 5/4$1,411
Sun 25/1017:00
LGW
-
SYD
1 stop33h 35m
China Eastern
Tue 3/1121:30
SYD
-
LGW
1 stop44h 00m
China Eastern
Deal found 6/4$1,413
Wed 9/921:20
LHR
-
SYD
1 stop26h 40m
China Eastern
Tue 27/1021:30
SYD
-
LHR
1 stop31h 00m
China Eastern
Deal found 3/4$1,413
Sat 31/1010:30
LGW
-
SYD
1 stop36h 30m
China Eastern
Wed 4/1121:30
SYD
-
LGW
1 stop44h 00m
China Eastern
Deal found 2/4$1,414
Sun 26/414:50
LHR
-
SYD
1 stop41h 00m
Etihad Airways
Sun 10/515:40
SYD
-
LHR
1 stop24h 20m
Etihad Airways
Deal found 7/4$1,414
Fri 15/511:00
LGW
-
SYD
1 stop23h 25m
China Southern
Fri 12/610:05
SYD
-
LGW
2 stops41h 25m
China Southern
Deal found 5/4$1,416
Fri 22/516:30
STN
-
SYD
2 stops28h 40m
Multiple Airlines
Fri 29/520:50
SYD
-
STN
2 stops35h 30m
Multiple Airlines
Deal found 7/4$1,416
Thu 5/1121:30
LHR
-
SYD
2 stops35h 50m
China Southern
Tue 17/1115:15
SYD
-
LHR
2 stops38h 20m
China Southern
Deal found 3/4$1,416
Mon 2/1121:30
LHR
-
SYD
2 stops47h 00m
China Southern
Mon 16/1115:15
SYD
-
LHR
1 stop38h 20m
China Southern
Deal found 4/4$1,417
Mon 18/511:40
LGW
-
SYD
1 stop22h 45m
China Southern
Mon 25/510:05
SYD
-
LGW
2 stops41h 25m
China Southern
Deal found 3/4$1,419
Sun 3/521:45
LHR
-
SYD
1 stop34h 05m
Etihad Airways
Sat 23/520:50
SYD
-
LHR
1 stop30h 55m
Etihad Airways
Deal found 7/4$1,419
Thu 7/511:10
LGW
-
SYD
1 stop23h 15m
China Southern
Fri 22/510:05
SYD
-
LGW
2 stops41h 25m
China Southern
Deal found 7/4$1,420

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 8 April 2026.

Round-trip from

$1,411

One-way from

$818

Popular in

December

Cheapest in

May

Average price

$1,864

Good one-way deal

$1,875 or less
China Eastern
  • China Eastern
  • 8/9-27/10
  • 2 total stops
  • 57h 30m total
  • London to Sydney
Search Deals
17/6
  • 17/6
  • 2 total stops
  • 40h 55m total
  • London to Sydney
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($232 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($97 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 8 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 11/5

09:30-06:10

2 stops35h 40m

Sydney Kingsford Smith

Wed 27/5

15:40-17:50

2 stops35h 10m

$1,462

LondonSydney

LTN - SYD

LTNSYD

London Luton

Mon 18/5

09:30-06:10

2 stops35h 40m

Sydney Kingsford Smith

Mon 25/5

20:50-21:45

2 stops33h 55m

$1,509

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Wed 1/7

10:25-08:20

1 stop36h 55m

Sydney Kingsford Smith

Wed 22/7

20:50-07:05

1 stop43h 15m

$1,512

LondonSydney

SEN - SYD

SENSYD

London Southend

Wed 13/5

16:50-06:10

2 stops28h 20m

Sydney Kingsford Smith

Wed 27/5

15:40-16:40

2 stops34h 00m

$1,566

LondonSydney

SEN - SYD

SENSYD

London Southend

Wed 20/5

16:50-06:10

2 stops28h 20m

Sydney Kingsford Smith

Wed 27/5

15:40-16:40

2 stops34h 00m

$1,573
Fastest return journey

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 7/5

09:30-16:50

1 stop22h 20m

Sydney Kingsford Smith

Thu 14/5

20:50-12:45

1 stop24h 55m

$1,574

LondonSydney

SEN - SYD

SENSYD

London Southend

Mon 11/5

16:55-06:10

2 stops28h 15m

Sydney Kingsford Smith

Wed 27/5

15:40-16:40

2 stops34h 00m

$1,574

LondonSydney

LTN - SYD

LTNSYD

London Luton

Sun 14/6

15:35-06:10

2 stops29h 35m

Sydney Kingsford Smith

Mon 29/6

21:30-21:45

2 stops33h 15m

$1,613

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Thu 1/10

10:25-08:20

1 stop36h 55m

Sydney Kingsford Smith

Wed 21/10

21:50-07:05

1 stop43h 15m

$1,638

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Sun 26/4

11:35-08:05

2 stops35h 30m

Sydney Kingsford Smith

Sun 10/5

20:30-15:00

1 stop27h 30m

$1,838

Flights are sorted by cheapest return flights first.

Deals found on 7/4

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 3 April 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 $978). Flying from London to Sydney in July is currently the most expensive (average of $1,424). 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 8 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.

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 8 April 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 $1,595.

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 8 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
1,258 reviews
Check prices

Comfort

7.6

Boarding

7.9

Crew

8.1

Entertainment

7.8

Overall

7.6

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.
Cathay Pacific
7.6
Good
1,258 reviews
Cathay Pacific
7.6
Good
1,258 reviews
Check prices

Comfort

7.6

Boarding

7.9

Crew

8.1

Entertainment

7.8

Overall

7.6

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.
Qantas Airways
7.5
Good
1,017 reviews
Cathay Pacific
7.6
Good
1,258 reviews
Check prices

Comfort

7.6

Boarding

7.9

Crew

8.1

Entertainment

7.8

Overall

7.6

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.
China Southern
7.4
Good
146 reviews
Cathay Pacific
7.6
Good
1,258 reviews
Check prices

Comfort

7.6

Boarding

7.9

Crew

8.1

Entertainment

7.8

Overall

7.6

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.
Etihad Airways
7.3
Good
1,428 reviews
Cathay Pacific
7.6
Good
1,258 reviews
Check prices

Comfort

7.6

Boarding

7.9

Crew

8.1

Entertainment

7.8

Overall

7.6

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.
China Eastern
7.2
Good
200 reviews
Cathay Pacific
7.6
Good
1,258 reviews
Check prices

Comfort

7.6

Boarding

7.9

Crew

8.1

Entertainment

7.8

Overall

7.6

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 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. 16 airlines have flights to Sydney Kingsford Smith from London on a regular basis.

  • How long is the flight from London to Sydney?

    AirAsia X, China Eastern, and Etihad Airways can get you from London to Sydney in just under 22h 20m. Your travel time can differ by up to 14h 35m. 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 $1,028 on this airline. Additional options worth looking into are Air China and China Southern, starting at $1,133 and $1,212 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?

    $674 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 $703 and $736, 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 $2,617, our data indicates the cheapest price to be $1,535. The most popular route (London Heathrow - Sydney Kingsford Smith), is priced around $1,028.

  • 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 $978). Flying from London to Sydney in July is currently the most expensive (average of $1,424). 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
Cronulla
Manly
Bondi Beach
Coogee
Leura
Randwick

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 8 April 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest$1,028Average$1,562FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest$1,133Average$2,591FlexibilityNo cancel feeOn-time67%
Search Air China flights
China SouthernCheapest$1,212Average$1,578FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air IndiaCheapest$1,373Average$1,943FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Qatar AirwaysCheapest$1,448Average$2,296FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Malaysia AirlinesCheapest$1,449Average$1,987FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Turkish AirlinesCheapest$1,454Average$1,893FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Etihad AirwaysCheapest$1,482Average$2,349FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
China AirlinesCheapest$1,493Average$1,646FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Cathay PacificCheapest$1,500Average$1,970FlexibilityNo 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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