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Cheap flights from London to Australia from $736

LON — SYD
26 Sep — 3 Oct1
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

Wed 11/1121:30 -
2 stops37h 00m
Wed 25/1111:25 -
2 stops41h 30m
Deal found 26/8$1,304
Tue 20/1021:20 -
1 stop30h 20m
Mon 26/1022:30 -
1 stop30h 00m
Deal found 26/8$1,310
Tue 20/1011:35 -
1 stop40h 05m
Tue 27/1022:30 -
1 stop43h 00m
Deal found 25/8$1,310
Sun 1/1117:15 -
2 stops29h 30m
Sun 22/1108:40 -
1 stop44h 55m
Deal found 26/8$1,311
Wed 26/822:00 -
2 stops51h 00m
Thu 10/921:30 -
1 stop26h 30m
Deal found 24/8$1,311
Wed 2/921:20 -
1 stop26h 40m
Wed 9/911:00 -
1 stop40h 40m
Deal found 25/8$1,313
Sun 13/911:00 -
1 stop23h 20m
Sun 27/921:10 -
1 stop42h 20m
Deal found 24/8$1,313
Tue 8/922:00 -
1 stop29h 40m
Tue 29/911:00 -
1 stop28h 40m
Deal found 25/8$1,314
Sun 1/1117:15 -
2 stops29h 30m
Sat 28/1108:40 -
2 stops40h 20m
Deal found 26/8$1,315
Wed 11/1117:00 -
1 stop30h 00m
Fri 20/1112:00 -
1 stop29h 30m
Deal found 26/8$1,315
Wed 11/1121:00 -
1 stop30h 05m
Fri 20/1122:30 -
1 stop30h 00m
Deal found 26/8$1,317
Tue 20/1021:30 -
2 stops50h 10m
Tue 10/1111:25 -
1 stop30h 05m
Deal found 25/8$1,317

Find flight deals from London to Australia

Round-trip from

$1,304

One-way from

$736

Popular in

December

Cheapest in

May

Average price

$2,094

Good round-trip deal

$2,215 or less
China Southern
  • China Southern
  • 11/11-25/11
  • 4 total stops
  • 78h 30m total
  • London to Australia
Search Deals
China Eastern
  • China Eastern
  • 4/12
  • 1 total stop
  • 34h 05m total
  • London to Australia
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($213 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease ($98 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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Price to beat on a round-trip flight from London (LON) to Australia.
Search Deals

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

LondonMelbourne

LHR London Heathrow - MEL Melbourne

LHRMEL

London Heathrow

Tue 20/10

21:20-11:00

2 stops27h 40m

Melbourne

Mon 26/10

13:00-17:30

3 stops39h 30m

$1,437

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Wed 17/2

20:55-06:30

1 stop22h 35m

Sydney Kingsford Smith

Sun 7/3

16:50-12:05

1 stop30h 15m

$1,715

LondonMelbourne

LHR London Heathrow - MEL Melbourne

LHRMEL

London Heathrow

Sun 13/9

06:30-19:20

2 stops27h 50m

Melbourne

Sun 27/9

19:45-19:30

2 stops32h 45m

$1,729

LondonSydney

STN London Stansted - SYD Sydney Kingsford Smith

STNSYD

London Stansted

Thu 4/2

17:20-19:25

2 stops39h 05m

Sydney Kingsford Smith

Thu 4/3

21:35-16:20

2 stops29h 45m

$1,758

LondonPerth

LGW London Gatwick - PER Perth

LGWPER

London Gatwick

Tue 1/12

21:20-05:35

1 stop24h 15m

Perth

Mon 1/3

14:15-05:25

1 stop23h 10m

$1,806

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Tue 2/2

21:00-06:55

1 stop22h 55m

Sydney Kingsford Smith

Tue 2/3

12:30-05:20

2 stops27h 50m

$1,817

LondonMelbourne

LHR London Heathrow - MEL Melbourne

LHRMEL

London Heathrow

Thu 24/9

14:00-19:40

1 stop44h 40m

Melbourne

Thu 15/10

22:45-20:20

3 stops31h 35m

$1,835

LondonSydney

LGW London Gatwick - SYD Sydney Kingsford Smith

LGWSYD

London Gatwick

Fri 18/9

17:35-19:10

2 stops40h 35m

Sydney Kingsford Smith

Thu 15/10

22:05-22:25

2 stops34h 20m

$1,868

LondonMelbourne

LGW London Gatwick - MEL Melbourne

LGWMEL

London Gatwick

Mon 19/10

07:05-20:15

2 stops27h 10m

Melbourne

Mon 30/11

22:35-22:35

2 stops35h 00m

$1,871

LondonMelbourne

STN London Stansted - MEL Melbourne

STNMEL

London Stansted

Mon 16/11

10:55-20:40

2 stops46h 45m

Melbourne

Mon 23/11

22:35-16:20

2 stops28h 45m

$1,875

Flights are sorted by cheapest return flights first.

Deals found on 22/8

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 $1,722). Flying from London to Australia in December is currently the most expensive (average of $2,603). 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 Friday, which is when the least amount of flights are scheduled (2 on average).

How often are flights from London to Australia delayed?

About 23% of weekly flights between London and Australia have experienced delays in the past year, with the average delay time being 114 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 23% 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 48 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,Qatar Airways, andEtihad Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very Good
1,588 reviews
Check prices

Boarding

8.3

Comfort

8.0

Overall

8.2

Crew

8.6

Food

7.8

Entertainment

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
Singapore Airlines
8.2
Very Good
1,588 reviews
Singapore Airlines
8.2
Very Good
1,588 reviews
Check prices

Boarding

8.3

Comfort

8.0

Overall

8.2

Crew

8.6

Food

7.8

Entertainment

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
Qatar Airways
7.4
Good
3,728 reviews
Singapore Airlines
8.2
Very Good
1,588 reviews
Check prices

Boarding

8.3

Comfort

8.0

Overall

8.2

Crew

8.6

Food

7.8

Entertainment

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
Etihad Airways
7.3
Good
1,518 reviews
Singapore Airlines
8.2
Very Good
1,588 reviews
Check prices

Boarding

8.3

Comfort

8.0

Overall

8.2

Crew

8.6

Food

7.8

Entertainment

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
China Southern
7.3
Good
172 reviews
Singapore Airlines
8.2
Very Good
1,588 reviews
Check prices

Boarding

8.3

Comfort

8.0

Overall

8.2

Crew

8.6

Food

7.8

Entertainment

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.
China Eastern
7.3
Good
236 reviews
Singapore Airlines
8.2
Very Good
1,588 reviews
Check prices

Boarding

8.3

Comfort

8.0

Overall

8.2

Crew

8.6

Food

7.8

Entertainment

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

Related info for your journey

  • How long is the flight from London to Australia?

    A quick flight from London to Australia can take about 22h 35m. China Eastern provides one of the quickest options available for as low as $1,715. London and Australia are separated by a distance of 17008 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 ($496), China Southern ($663), and China Eastern ($686).

  • 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 $1,722). Flying from London to Australia in December is currently the most expensive (average of $2,603). 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$841Average$1,528FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air IndiaCheapest$1,159Average$2,005FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Singapore AirlinesCheapest$1,217Average$2,224FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
China EasternCheapest$1,238Average$1,606FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Etihad AirwaysCheapest$1,267Average$1,978FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Qatar AirwaysCheapest$1,362Average$2,341FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Qantas AirwaysCheapest$1,427Average$2,491FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Cathay PacificCheapest$1,451Average$2,100FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Malaysia AirlinesCheapest$1,524Average$2,587FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
EmiratesCheapest$1,674Average$2,020FlexibilityNo 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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