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Cheap flights from London to Australia from $788

LON — SYD
9 Dec — 16 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Australia

Enter your travel dates to find the best prices.

Cheapest flights from London to Australia

Sun 22/1121:00 -
1 stop26h 00m
Sun 6/1222:30 -
1 stop30h 00m
Deal found 4/11$1,514
Mon 9/1121:00 -
1 stop25h 45m
Mon 23/1109:15 -
1 stop45h 05m
Deal found 5/11$1,517
Sat 21/1110:30 -
2 stops37h 30m
Sat 5/1222:30 -
1 stop26h 30m
Deal found 5/11$1,517
Mon 16/1121:00 -
3 stops51h 00m
Mon 7/1222:30 -
1 stop30h 00m
Deal found 9/11$1,520
Wed 9/1209:50 -
1 stop34h 00m
Wed 3/208:40 -
1 stop32h 50m
Deal found 5/11$1,520
Fri 20/1112:30 -
1 stop35h 05m
Sun 29/1109:15 -
1 stop32h 20m
Deal found 8/11$1,521
Tue 17/1110:30 -
1 stop40h 35m
Sat 5/1222:30 -
1 stop26h 30m
Deal found 6/11$1,521
Wed 9/1221:05 -
1 stop31h 25m
Wed 3/215:00 -
1 stop37h 50m
Deal found 5/11$1,524
Tue 24/1110:30 -
3 stops37h 30m
Tue 1/1222:30 -
1 stop26h 30m
Deal found 8/11$1,524
Wed 11/1121:00 -
1 stop26h 00m
Wed 18/1122:30 -
1 stop30h 00m
Deal found 7/11$1,527
Wed 25/1121:10 -
1 stop28h 50m
Sat 20/222:15 -
1 stop31h 55m
Deal found 6/11$1,528
Sun 15/1121:30 -
2 stops37h 40m
Wed 9/1210:10 -
1 stop42h 25m
Deal found 5/11$1,530

Find flight deals from London to Australia

Round-trip from

$1,508

One-way from

$788

Popular in

December

Cheapest in

May

Average price

$1,802

Good round-trip deal

$2,746 or less

Good one-way deal

$1,988 or less
Air India
  • Air India
  • 27/4-31/5
  • 2 total stops
  • 60h 05m total
  • London to Australia
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25/11-31/12
  • 25/11-31/12
  • 2 total stops
  • 44h 40m total
  • London to Australia
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($203 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease ($94 potential savings vs. average return price).
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Average for round-trip flights in November 2026
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Price to beat on a round-trip flight from London (LON) to Australia.
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Price to beat on a one-way flight from London (LON) to Australia.
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from London to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBrisbane

LGW London Gatwick - BNE Brisbane

LGWBNE

London Gatwick

Tue 24/11

10:30-09:00

1 stop36h 30m

Brisbane

Wed 31/12

00:00-15:00

Nonstop0h 00m

$833

LondonMelbourne

LHR London Heathrow - MEL Melbourne

LHRMEL

London Heathrow

Thu 19/11

22:30-13:00

1 stop27h 30m

Melbourne

Wed 31/12

00:00-15:00

Nonstop0h 00m

$844

LondonMelbourne

LHR London Heathrow - MEL Melbourne

LHRMEL

London Heathrow

Thu 26/11

22:30-13:00

1 stop27h 30m

Melbourne

Wed 31/12

00:00-15:00

Nonstop0h 00m

$844

LondonAdelaide

LHR London Heathrow - ADL Adelaide

LHRADL

London Heathrow

Sun 13/12

06:30-09:55

2 stops40h 55m

Adelaide

Wed 31/12

00:00-15:30

Nonstop0h 00m

$983

LondonMelbourne

LGW London Gatwick - MEL Melbourne

LGWMEL

London Gatwick

Thu 24/12

17:25-14:05

2 stops57h 40m

Melbourne

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,089

LondonSydney

LGW London Gatwick - SYD Sydney Kingsford Smith

LGWSYD

London Gatwick

Thu 18/2

08:40-18:20

1 stop22h 40m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,205

LondonSydney

LGW London Gatwick - SYD Sydney Kingsford Smith

LGWSYD

London Gatwick

Wed 30/12

08:40-19:20

1 stop23h 40m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,221
Fastest return journey

LondonMelbourne

LGW London Gatwick - MEL Melbourne

LGWMEL

London Gatwick

Thu 12/11

08:40-17:50

1 stop22h 10m

Melbourne

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,240

LondonPerth

LGW London Gatwick - PER Perth

LGWPER

London Gatwick

Tue 1/12

08:40-18:45

1 stop26h 05m

Perth

Wed 31/12

00:00-17:00

Nonstop0h 00m

$1,249

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Sun 17/1

08:40-06:30

1 stop34h 50m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,256

Flights are sorted by cheapest return flights first.

Deals found on 9/11

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from London to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from London with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from London to Australia

What is the cheapest month to book a flight from London to Australia?

Currently, May is the cheapest month in which you can book a flight from London to Australia (average of $1,837). Flying from London to Australia in December is currently the most expensive (average of $2,725). 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 AU?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to Australia as you normally would.

Weekly flight availability from London to Australia

The most flights from LON to AU0 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 often are flights from London to Australia delayed?

About 22% of weekly flights between London and Australia have experienced delays in the past year, with the average delay time being 108 minutes.

What is the most punctual flight time for London to Australia flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to Australia flights?

Over the past year, Qantas Airways have had the lowest number of delays on this route, with just 22% of flights being delayed.

How far ahead should I book a flight from London to Australia?

The best time to book flights from London to Australia is 46 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Australia

Read through reviews of airlines operating flights from London to Australia, such as Singapore Airlines,China Southern, andQatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very Good
1,633 reviews
Check prices

Entertainment

8.1

Food

7.8

Overall

8.2

Crew

8.6

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Sanku,July 2026

TRV - SIN

Very bad, not able check in using the email link. Very bad quality food. No TV in front of the seats.
Singapore Airlines
8.2
Very Good
1,633 reviews
Singapore Airlines
8.2
Very Good
1,633 reviews
Check prices

Entertainment

8.1

Food

7.8

Overall

8.2

Crew

8.6

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Sanku,July 2026

TRV - SIN

Very bad, not able check in using the email link. Very bad quality food. No TV in front of the seats.
China Southern
7.5
Good
188 reviews
Singapore Airlines
8.2
Very Good
1,633 reviews
Check prices

Entertainment

8.1

Food

7.8

Overall

8.2

Crew

8.6

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Sanku,July 2026

TRV - SIN

Very bad, not able check in using the email link. Very bad quality food. No TV in front of the seats.
Qatar Airways
7.4
Good
3,707 reviews
Singapore Airlines
8.2
Very Good
1,633 reviews
Check prices

Entertainment

8.1

Food

7.8

Overall

8.2

Crew

8.6

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Sanku,July 2026

TRV - SIN

Very bad, not able check in using the email link. Very bad quality food. No TV in front of the seats.
Etihad Airways
7.3
Good
1,555 reviews
Singapore Airlines
8.2
Very Good
1,633 reviews
Check prices

Entertainment

8.1

Food

7.8

Overall

8.2

Crew

8.6

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Sanku,July 2026

TRV - SIN

Very bad, not able check in using the email link. Very bad quality food. No TV in front of the seats.
China Eastern
7.3
Good
250 reviews
Singapore Airlines
8.2
Very Good
1,633 reviews
Check prices

Entertainment

8.1

Food

7.8

Overall

8.2

Crew

8.6

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Sanku,July 2026

TRV - SIN

Very bad, not able check in using the email link. Very bad quality food. No TV in front of the seats.

Related info for your journey

  • How long is the flight from London to Australia?

    A quick flight from London to Australia can take about 25h 35m. Qatar Airways provides one of the quickest options available for as low as $1,836. London and Australia are separated by a distance of 16272 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from London to Australia one-way?

    The cheapet airlines for a one-way flight from London to Australia are Air China ($518), Etihad Airways ($665), and China Southern ($666).

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

    When deciding which route to take from London to Australia, consider London Heathrow - Sydney Kingsford Smith, London Gatwick - Sydney Kingsford Smith or London Stansted - Sydney Kingsford Smith, as they are the most popular.

  • Can I find deals for flights from London to Australia that include hotel bookings?

    Yes. In addition to deals on London to Australia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Australia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Australia.

  • Can I find deals for business class flights from London to Australia?

    Yes. Cheapflights offers flight deals from London to Australia 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 Australia?

    Currently, May is the cheapest month in which you can book a flight from London to Australia (average of $1,837). Flying from London to Australia in December is currently the most expensive (average of $2,725). 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

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from London to Australia

AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$809Average$1,556FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air IndiaCheapest$1,219Average$2,095FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Singapore AirlinesCheapest$1,271Average$2,412FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
China EasternCheapest$1,273Average$1,739FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Etihad AirwaysCheapest$1,324Average$1,882FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Qatar AirwaysCheapest$1,423Average$2,633FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Cathay PacificCheapest$1,516Average$2,084FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Qantas AirwaysCheapest$1,530Average$2,395FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Malaysia AirlinesCheapest$1,592Average$2,788FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
EmiratesCheapest$1,749Average$2,035FlexibilityNo cancel feeOn-time75%
Search Emirates flights

Fly with Cheapflights

How does Cheapflights help users find flights from London to Australia?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London to Australia. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from London to Australia?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to Australia for you. Better yet — we are completely free to use.

Can Cheapflights find flights from London to Australia with no change fees?

Certainly. Search results for flights to Australia from London shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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