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Cheap flights from London to Sydney from $753

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SYD
15 Apr — 22 Apr1
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 16 March 2026.

Tue 28/418:00
LGW
-
SYD
2 stops29h 00m
China Eastern
Wed 20/511:00
SYD
-
LGW
1 stop37h 00m
China Eastern
Deal found 12/3$1,359
Sun 3/519:15
LHR
-
SYD
2 stops32h 10m
China Southern
Sun 24/514:10
SYD
-
LHR
2 stops36h 55m
China Southern
Deal found 11/3$1,359
Thu 9/421:00
LHR
-
SYD
2 stops37h 25m
China Southern
Thu 30/414:10
SYD
-
LHR
1 stop38h 10m
China Southern
Deal found 12/3$1,360
Mon 27/411:35
LGW
-
SYD
3 stops35h 25m
China Eastern
Wed 13/511:00
SYD
-
LGW
1 stop37h 00m
China Eastern
Deal found 11/3$1,362
Wed 29/422:10
LHR
-
SYD
1 stop36h 15m
China Southern
Thu 14/514:10
SYD
-
LHR
1 stop38h 10m
China Southern
Deal found 12/3$1,362
Thu 9/411:35
LGW
-
SYD
2 stops35h 25m
Multiple Airlines
Mon 4/510:05
SYD
-
LGW
2 stops41h 25m
Multiple Airlines
Deal found 11/3$1,363
Mon 27/421:20
LHR
-
SYD
1 stop30h 15m
China Eastern
Wed 13/511:00
SYD
-
LHR
1 stop40h 40m
China Eastern
Deal found 11/3$1,363
Thu 7/522:10
LHR
-
SYD
1 stop29h 15m
China Southern
Fri 22/514:10
SYD
-
LHR
2 stops36h 55m
China Southern
Deal found 12/3$1,364
Wed 29/422:10
LHR
-
SYD
1 stop36h 15m
China Southern
Tue 19/514:10
SYD
-
LHR
2 stops36h 55m
China Southern
Deal found 11/3$1,366
Sun 26/410:50
LGW
-
SYD
2 stops34h 20m
Turkish Airlines
Sun 3/515:40
SYD
-
LGW
2 stops27h 15m
Turkish Airlines
Deal found 12/3$1,367
Mon 9/1122:00
LHR
-
SYD
1 stop24h 25m
China Southern
Fri 20/1111:25
SYD
-
LHR
1 stop42h 10m
China Southern
Deal found 11/3$1,367
Thu 12/1109:25
LGW
-
SYD
2 stops36h 50m
AirAsia X
Sat 21/1110:45
SYD
-
LGW
2 stops30h 40m
AirAsia X
Deal found 11/3$1,369

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 16 March 2026.

Round-trip from

$1,359

One-way from

$753

Popular in

December

Cheapest in

May

Average price

$1,804
China Eastern
  • China Eastern
  • 28/4-20/5
  • 3 total stops
  • 66h 00m total
  • London to Sydney
Search Deals
10/6
  • 10/6
  • 3 total stops
  • 53h 20m total
  • London to Sydney
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($236 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($93 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 16 March 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

LHR - SYD

LHRSYD

London Heathrow

Mon 11/5

21:20-12:35

1 stop30h 15m

Sydney Kingsford Smith

Sat 23/5

10:00-18:40

2 stops41h 40m

$1,402

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Thu 14/5

07:00-16:50

2 stops48h 50m

Sydney Kingsford Smith

Mon 18/5

15:40-09:55

2 stops27h 15m

$1,430

LondonSydney

STN - SYD

STNSYD

London Stansted

Wed 13/5

17:45-16:50

2 stops62h 05m

Sydney Kingsford Smith

Sun 17/5

15:40-09:55

2 stops27h 15m

$1,442

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Tue 9/6

18:00-08:00

2 stops29h 00m

Sydney Kingsford Smith

Tue 30/6

20:30-15:00

1 stop27h 30m

$1,465

LondonSydney

STN - SYD

STNSYD

London Stansted

Fri 15/5

10:50-19:10

2 stops47h 20m

Sydney Kingsford Smith

Tue 16/6

15:40-09:55

2 stops27h 15m

$1,525

LondonSydney

STN - SYD

STNSYD

London Stansted

Tue 7/4

06:55-19:10

2 stops27h 15m

Sydney Kingsford Smith

Tue 28/4

15:40-09:55

2 stops27h 15m

$1,525

LondonSydney

STN - SYD

STNSYD

London Stansted

Wed 1/7

06:55-19:10

2 stops27h 15m

Sydney Kingsford Smith

Fri 17/7

15:40-09:55

2 stops27h 15m

$1,541

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Mon 27/4

14:05-19:10

2 stops44h 05m

Sydney Kingsford Smith

Wed 13/5

15:40-09:55

2 stops27h 15m

$1,563

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Sun 21/6

11:35-08:05

2 stops35h 30m

Sydney Kingsford Smith

Tue 7/7

11:00-06:40

1 stop28h 40m

$1,591

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 4/6

06:30-19:10

2 stops27h 40m

Sydney Kingsford Smith

Sun 7/6

15:40-12:10

2 stops29h 30m

$1,675

Flights are sorted by cheapest return flights first.

Deals found on 10/3

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 $992). Flying from London to Sydney in July is currently the most expensive (average of $1,430). 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 16 March 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 16 March 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 15% 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 $1,586.

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 25m.

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 16 March 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
1,207 reviews
Check prices

Entertainment

7.8

Food

7.3

Crew

8.1

Boarding

7.9

Overall

7.6

Comfort

7.6

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
1,207 reviews
Cathay Pacific
7.6
Good
1,207 reviews
Check prices

Entertainment

7.8

Food

7.3

Crew

8.1

Boarding

7.9

Overall

7.6

Comfort

7.6

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
1,004 reviews
Cathay Pacific
7.6
Good
1,207 reviews
Check prices

Entertainment

7.8

Food

7.3

Crew

8.1

Boarding

7.9

Overall

7.6

Comfort

7.6

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
1,207 reviews
Check prices

Entertainment

7.8

Food

7.3

Crew

8.1

Boarding

7.9

Overall

7.6

Comfort

7.6

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
1,207 reviews
Check prices

Entertainment

7.8

Food

7.3

Crew

8.1

Boarding

7.9

Overall

7.6

Comfort

7.6

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
1,207 reviews
Check prices

Entertainment

7.8

Food

7.3

Crew

8.1

Boarding

7.9

Overall

7.6

Comfort

7.6

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. 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, Turkish Airlines, and Etihad Airways can get you from London to Sydney in just under 22h 20m. Your travel time can differ by up to 26h 30m. 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 $1,022 on this airline. Additional options worth looking into are China Southern and Air China, starting at $1,037 and $1,127 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?

    $699 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 Air China and China Southern, with prices starting from $701 and $745, 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 $992). Flying from London to Sydney in July is currently the most expensive (average of $1,430). 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
Manly
Terrigal
Lithgow
Bondi Beach
Coogee
Cronulla
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 16 March 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest$1,022Average$1,485FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest$1,037Average$1,551FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest$1,127Average$2,342FlexibilityNo cancel feeOn-time67%
Search Air China flights
Air IndiaCheapest$1,365Average$1,851FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Qatar AirwaysCheapest$1,440Average$2,101FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Malaysia AirlinesCheapest$1,441Average$1,991FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Turkish AirlinesCheapest$1,445Average$1,882FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Etihad AirwaysCheapest$1,472Average$2,314FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
China AirlinesCheapest$1,485Average$1,637FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Cathay PacificCheapest$1,491Average$1,807FlexibilityNo 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?

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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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