Cheap flights from London to Australia from $820

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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SYD
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheap flight deals from London to Australia

Keep the following information in mind while searching for London to Australia flight deals. Data was last updated 17 September 2025.

Round-trip from

$1,372

One-way from

$820

Popular in

December

Cheapest in

May

Average price

$1,717

Good round-trip deal

$2,308 or less

Good one-way deal

$1,933 or less
China Southern
  • China Southern
  • 4/3-18/3
  • 3 total stops
  • 66h 00m total
  • London to Australia
1/11
  • 1/11
  • 3 total stops
  • 53h 20m total
  • London to Australia
Highest demand for flights based on searches. 9% potential increase in price ($316 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease ($96 potential savings vs. average return price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from London (LON) to Australia.
Price to beat on a one-way flight from London (LON) to Australia.

Find flight deals from London to Australia

Cheapest flights from London to Australia
Explore the most affordable flight options available from London to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Wed 26/1121:00LHR - BNE
1 stop26h 00mChina Eastern
Mon 23/211:10BNE - LHR
1 stop40h 20mChina Eastern
Deal found 16/9$1,378
Mon 3/1121:00LHR - MEL
1 stop30h 05mChina Eastern
Thu 13/1112:00MEL - LHR
1 stop40h 30mChina Eastern
Deal found 15/9$1,381
Fri 31/1010:30LGW - MEL
1 stop36h 30mMultiple Airlines
Fri 7/1115:00MEL - LGW
2 stops29h 10mMultiple Airlines
Deal found 16/9$1,381
Fri 31/1021:00LHR - MEL
2 stops31h 10mMultiple Airlines
Fri 7/1115:00MEL - LHR
2 stops29h 55mMultiple Airlines
Deal found 16/9$1,383
Sun 2/1110:30LGW - MEL
1 stop40h 35mMultiple Airlines
Mon 17/1116:55MEL - LGW
2 stops34h 15mMultiple Airlines
Deal found 15/9$1,384
Wed 29/1020:25LHR - MEL
1 stop32h 20mMultiple Airlines
Wed 5/1116:55MEL - LHR
2 stops28h 00mMultiple Airlines
Deal found 14/9$1,386
Fri 31/1021:00LHR - MEL
2 stops31h 10mMultiple Airlines
Sun 23/1116:55MEL - LHR
2 stops28h 00mMultiple Airlines
Deal found 16/9$1,387
Thu 30/1010:30LGW - MEL
1 stop36h 30mMultiple Airlines
Thu 6/1116:55MEL - LGW
2 stops34h 15mMultiple Airlines
Deal found 15/9$1,387
Sun 26/1021:00LHR - MEL
1 stop26h 00mChina Eastern
Thu 13/1113:00MEL - LHR
2 stops39h 30mChina Eastern
Deal found 14/9$1,389
Fri 7/1110:30LGW - MEL
3 stops61h 30mChina Eastern
Wed 4/222:30MEL - LGW
1 stop26h 30mChina Eastern
Deal found 16/9$1,389
Sat 25/1021:20LHR - MEL
1 stop26h 40mChina Eastern
Wed 5/1112:00MEL - LHR
1 stop40h 30mChina Eastern
Deal found 15/9$1,390
Mon 13/1011:35LGW - MEL
1 stop36h 25mChina Eastern
Mon 20/1012:00MEL - LGW
1 stop28h 30mChina Eastern
Deal found 15/9$1,390

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Australia 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 17 September 2025.
Use the filters below to find and compare flights from London to Australia that are best for you.

Fly from

London

Fly to

Australia

Route

Depart

Return

Price

LondonPerth

LHR - PER

LHRPER

London Heathrow

Wed 29/10

22:05-06:55

1 stop24h 50m

Perth

Tue 4/11

00:15-17:20

1 stop25h 05m

$1,756

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 28/10

11:00-09:50

1 stop35h 50m

Sydney Kingsford Smith

Mon 8/6

10:15-17:50

1 stop40h 35m

$1,759

LondonPerth

LHR - PER

LHRPER

London Heathrow

Sun 2/11

16:50-06:55

1 stop30h 05m

Perth

Sun 23/11

08:30-05:30

1 stop29h 00m

$1,761

LondonPerth

LHR - PER

LHRPER

London Heathrow

Wed 29/10

22:05-06:55

1 stop24h 50m

Perth

Mon 17/11

08:30-06:20

1 stop29h 50m

$1,761

LondonPerth

LHR - PER

LHRPER

London Heathrow

Thu 30/10

20:15-06:55

1 stop26h 40m

Perth

Wed 5/11

00:25-17:20

1 stop24h 55m

$1,762

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 3/11

21:15-12:15

1 stop28h 00m

Sydney Kingsford Smith

Mon 17/11

22:10-16:55

1 stop29h 45m

$1,767

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 3/11

21:15-12:15

1 stop28h 00m

Sydney Kingsford Smith

Sun 16/11

22:10-16:55

1 stop29h 45m

$1,767

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 3/11

21:15-12:15

1 stop28h 00m

Sydney Kingsford Smith

Tue 2/12

22:10-16:55

1 stop29h 45m

$1,773

LondonSydney

STN - SYD

STNSYD

London Stansted

Wed 5/11

14:05-18:35

1 stop41h 30m

Sydney Kingsford Smith

Tue 11/11

06:00-18:00

1 stop23h 00m

$1,779

LondonSydney

STN - SYD

STNSYD

London Stansted

Sun 1/3

20:15-07:00

1 stop23h 45m

Sydney Kingsford Smith

Tue 31/3

06:00-12:55

1 stop40h 55m

$1,780

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 60 results
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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
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 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 $129). Flying from London to Australia in October is currently the most expensive (average of $171). 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?

Find hourly flight availability from London to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 September 2025.

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

Explore weekly flight availability from London to Australia. 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 17 September 2025.

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).

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated 17 September 2025.
Read through reviews of airlines operating flights from London to Australia, such as Singapore Airlines, Cathay Pacific, andChina Southern. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Overall

8.1

Crew

8.6

Entertainment

8.0

Food

7.7

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Boarding

8.2

Overall

8.1

Crew

8.6

Entertainment

8.0

Food

7.7

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Boarding

8.2

Overall

8.1

Crew

8.6

Entertainment

8.0

Food

7.7

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Boarding

8.2

Overall

8.1

Crew

8.6

Entertainment

8.0

Food

7.7

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Boarding

8.2

Overall

8.1

Crew

8.6

Entertainment

8.0

Food

7.7

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Boarding

8.2

Overall

8.1

Crew

8.6

Entertainment

8.0

Food

7.7

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Related info for your journey

Find useful and relevant information for your journey from London to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from London to Australia?

    A quick flight from London to Australia can take about 24h 50m. Cathay Pacific provides one of the quickest options available for as low as $1,756. London and Australia are separated by a distance of 14499 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 China Eastern ($824), China Southern ($869), and Air China ($927).

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

  • What are the cheapest flights from London to Australia?

    While on average a flight from London to Australia is generally $2,517, our data shows the cheapest flight currently is $1,822. When looking at the most popular route, (London Heathrow - Sydney Kingsford Smith), you can expect to pay $1,122 for that flight.

  • 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 $129). Flying from London to Australia in October is currently the most expensive (average of $171). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from London to Australia

Discover the top 10 airlines that operate flights from London to Australia. 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 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$1,037Average$2,431FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest$1,070Average$1,738FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest$1,084Average$1,562FlexibilityNo cancel feeOn-time69%
Search China Southern flights
British AirwaysCheapest$1,085Average$2,237FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Malaysia AirlinesCheapest$1,300Average$2,050FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Royal Brunei AirlinesCheapest$1,360Average$1,590FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
EmiratesCheapest$1,423Average$2,366FlexibilityNo cancel feeOn-time75%
Search Emirates flights
United AirlinesCheapest$1,437Average$2,038FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air IndiaCheapest$1,474Average$2,037FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Etihad AirwaysCheapest$1,481Average$2,337FlexibilityNo cancel feeOn-time75%
Search Etihad Airways 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 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.

Can Cheapflights notify me if prices for flights from London to Australia become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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