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Cheap flights from London to Sydney from $731

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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SYD
27 Mar — 3 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 25 February 2026.

Thu 7/522:10
LHR
-
SYD
1 stop25h 15m
China Southern
Sat 23/514:15
SYD
-
LHR
1 stop37h 45m
China Southern
Deal found 23/2$1,334
Sun 5/411:35
LGW
-
SYD
1 stop36h 25m
China Eastern
Wed 29/420:30
SYD
-
LGW
1 stop27h 30m
China Eastern
Deal found 24/2$1,336
Sat 9/511:35
LGW
-
SYD
1 stop40h 00m
China Eastern
Tue 26/511:00
SYD
-
LGW
1 stop37h 00m
China Eastern
Deal found 23/2$1,337
Mon 9/321:00
LHR
-
SYD
2 stops51h 00m
China Eastern
Tue 24/312:00
SYD
-
LHR
1 stop40h 30m
China Eastern
Deal found 23/2$1,337
Sat 7/320:20
LGW
-
SYD
2 stops37h 00m
China Southern
Fri 20/311:25
SYD
-
LGW
2 stops40h 55m
China Southern
Deal found 24/2$1,339
Tue 3/321:00
LHR
-
SYD
1 stop29h 35m
China Eastern
Tue 10/309:20
SYD
-
LHR
2 stops43h 10m
China Eastern
Deal found 24/2$1,339
Sat 14/321:00
LHR
-
SYD
1 stop26h 00m
China Eastern
Sat 21/321:30
SYD
-
LHR
1 stop31h 00m
China Eastern
Deal found 23/2$1,340
Thu 22/1018:00
LGW
-
SYD
1 stop30h 00m
China Eastern
Thu 5/1112:00
SYD
-
LGW
1 stop37h 00m
China Eastern
Deal found 24/2$1,342
Tue 3/322:00
LHR
-
SYD
1 stop35h 20m
China Southern
Tue 17/311:25
SYD
-
LHR
2 stops42h 10m
China Southern
Deal found 23/2$1,342
Sun 7/611:35
LGW
-
SYD
1 stop36h 25m
China Eastern
Sun 5/711:00
SYD
-
LGW
1 stop37h 10m
China Eastern
Deal found 23/2$1,343
Thu 7/522:10
LHR
-
SYD
1 stop36h 30m
China Southern
Tue 16/614:15
SYD
-
LHR
2 stops36h 50m
China Southern
Deal found 22/2$1,343
Sat 14/317:00
LGW
-
SYD
2 stops31h 00m
China Eastern
Sun 29/312:00
SYD
-
LGW
1 stop37h 10m
China Eastern
Deal found 24/2$1,344

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 25 February 2026.

Round-trip from

$1,334

One-way from

$731

Popular in

December

Cheapest in

May

Average price

$1,708
China Southern
  • China Southern
  • 7/5-23/5
  • 2 total stops
  • 63h 00m total
  • London to Sydney
Search Deals
2/4
  • 2/4
  • 2 total stops
  • 59h 20m total
  • London to Sydney
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($234 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($91 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 25 February 2026.
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

LGW - SYD

LGWSYD

London Gatwick

Tue 9/6

11:35-08:00

2 stops35h 25m

Sydney Kingsford Smith

Mon 15/6

11:00-06:40

1 stop28h 40m

$1,347

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Sat 25/4

11:35-08:00

3 stops35h 25m

Sydney Kingsford Smith

Mon 27/4

10:00-15:00

3 stops62h 00m

$1,417

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Wed 8/7

10:25-08:20

1 stop36h 55m

Sydney Kingsford Smith

Tue 21/7

20:50-07:30

1 stop43h 40m

$1,487

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Tue 30/6

10:25-08:20

1 stop36h 55m

Sydney Kingsford Smith

Mon 24/8

20:50-07:25

1 stop43h 35m

$1,642

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Wed 8/4

11:35-08:00

2 stops59h 25m

Sydney Kingsford Smith

Wed 15/4

20:30-15:00

1 stop27h 30m

$1,643

LondonSydney

STN - SYD

STNSYD

London Stansted

Sun 10/5

10:50-06:10

2 stops34h 20m

Sydney Kingsford Smith

Thu 21/5

21:05-16:40

2 stops28h 35m

$1,657

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Wed 1/4

18:25-13:35

1 stop33h 10m

Sydney Kingsford Smith

Wed 29/4

11:00-15:00

1 stop37h 00m

$1,666

LondonSydney

STN - SYD

STNSYD

London Stansted

Sun 17/5

06:40-16:50

2 stops25h 10m

Sydney Kingsford Smith

Tue 26/5

21:05-16:50

2 stops28h 45m

$1,694

LondonSydney

STN - SYD

STNSYD

London Stansted

Wed 13/5

10:50-19:10

2 stops47h 20m

Sydney Kingsford Smith

Sun 17/5

15:40-22:10

2 stops39h 30m

$1,694

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Sat 4/7

07:00-19:10

2 stops27h 10m

Sydney Kingsford Smith

Mon 20/7

15:40-13:10

2 stops30h 30m

$1,711

Flights are sorted by cheapest return flights first.

Deals found on 22/2

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 20 February 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 $939). Flying from London to Sydney in July is currently the most expensive (average of $1,404). 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 25 February 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 25 February 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 $1,413.

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 25 February 2026.
See what other customers who have flown with Cathay Pacific, Etihad 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
1,179 reviews
Check prices

Food

7.3

Crew

8.1

Comfort

7.6

Entertainment

7.8

Overall

7.6

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Cathay Pacific
7.6
Good
1,179 reviews
Cathay Pacific
7.6
Good
1,179 reviews
Check prices

Food

7.3

Crew

8.1

Comfort

7.6

Entertainment

7.8

Overall

7.6

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Etihad Airways
7.3
Good
1,416 reviews
Cathay Pacific
7.6
Good
1,179 reviews
Check prices

Food

7.3

Crew

8.1

Comfort

7.6

Entertainment

7.8

Overall

7.6

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
China Southern
7.3
Good
137 reviews
Cathay Pacific
7.6
Good
1,179 reviews
Check prices

Food

7.3

Crew

8.1

Comfort

7.6

Entertainment

7.8

Overall

7.6

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
China Eastern
7.2
Good
196 reviews
Cathay Pacific
7.6
Good
1,179 reviews
Check prices

Food

7.3

Crew

8.1

Comfort

7.6

Entertainment

7.8

Overall

7.6

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Air India
5.5
Fair
2,967 reviews
Cathay Pacific
7.6
Good
1,179 reviews
Check prices

Food

7.3

Crew

8.1

Comfort

7.6

Entertainment

7.8

Overall

7.6

Boarding

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

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 AirAsia X can get you from London to Sydney in just under 27h 25m. Your travel time can differ by up to 9h 30m. 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 China Eastern. Our recent data shows that you can find tickets from as low as $1,012 on this airline. Additional options worth looking into are China Southern and Air China, starting at $1,026 and $1,115 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?

    $692 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 $723 and $742, 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 $939). Flying from London to Sydney in July is currently the most expensive (average of $1,404). 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
Leura
Coogee
Cronulla
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 25 February 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest$1,012Average$1,464FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest$1,026Average$1,535FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest$1,115Average$2,317FlexibilityNo cancel feeOn-time67%
Search Air China flights
Air IndiaCheapest$1,350Average$1,912FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Qatar AirwaysCheapest$1,425Average$2,079FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Malaysia AirlinesCheapest$1,425Average$1,970FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Turkish AirlinesCheapest$1,430Average$1,862FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Etihad AirwaysCheapest$1,457Average$2,353FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
China AirlinesCheapest$1,469Average$1,619FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Cathay PacificCheapest$1,475Average$1,756FlexibilityNo 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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