Cheap flights from London to Australia from £435

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 27/11. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SYD
20 Dec — 27 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from London to Australia

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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 20 November 2025.

Wed 19/1117:00LHR - MEL
2 stops25h 00mRoyal Brunei Airlines
Tue 10/213:30MEL - LHR
2 stops28h 50mRoyal Brunei Airlines
Deal found 18/11£734
Tue 30/1220:25LHR - MEL
1 stop32h 15mAir China
Wed 28/120:15MEL - LHR
1 stop32h 35mAir China
Deal found 17/11£736
Sun 23/1110:30LGW - MEL
1 stop36h 30mChina Eastern
Sun 7/1212:00MEL - LGW
1 stop37h 00mChina Eastern
Deal found 18/11£738
Wed 31/1221:10LHR - MEL
1 stop28h 50mShenzhen Airlines
Tue 17/222:20MEL - LHR
1 stop31h 50mShenzhen Airlines
Deal found 20/11£739
Tue 25/1110:30LGW - MEL
1 stop36h 30mChina Eastern
Tue 9/1222:30MEL - LGW
1 stop26h 30mChina Eastern
Deal found 20/11£742
Fri 26/1208:20STN - MEL
3 stops35h 30mMultiple Airlines
Sat 17/113:10MEL - STN
3 stops32h 40mMultiple Airlines
Deal found 18/11£745
Wed 26/1110:30LGW - MEL
1 stop36h 30mChina Eastern
Mon 1/1212:00MEL - LGW
1 stop29h 30mChina Eastern
Deal found 19/11£746
Sun 28/1222:00LHR - SYD
1 stop45h 35mChina Southern
Sat 17/111:25SYD - LHR
1 stop42h 10mChina Southern
Deal found 18/11£747
Sun 28/1210:30LGW - SYD
2 stops36h 00mChina Eastern
Sun 18/121:30SYD - LGW
1 stop44h 00mChina Eastern
Deal found 18/11£748
Wed 26/1113:55LHR - SYD
1 stop29h 40mEtihad Airways
Wed 3/1216:35SYD - LHR
1 stop30h 30mEtihad Airways
Deal found 19/11£749
Sat 6/1220:25LHR - SYD
1 stop32h 05mMultiple Airlines
Sun 8/221:15SYD - LHR
2 stops27h 15mMultiple Airlines
Deal found 18/11£751
Wed 10/1215:55LGW - SYD
2 stops29h 10mMultiple Airlines
Mon 9/221:15SYD - LGW
2 stops29h 55mMultiple Airlines
Deal found 18/11£752

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 20 November 2025.

Round-trip from

£736

One-way from

£435

Popular in

December

Cheapest in

May

Average price

£870

Good round-trip deal

£1,139 or less

Good one-way deal

£989 or less
Air China
  • Air China
  • 30/12-28/1
  • 2 total stops
  • 64h 50m total
  • London to Australia
China Eastern
  • China Eastern
  • 27/11
  • 1 total stop
  • 26h 00m total
  • London to Australia
Highest demand for flights based on searches. 9% potential increase in price (£80 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£26 potential savings vs. average return price).
Average for round-trip flights in November 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.

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 858,174 searches. Data last updated 20 November 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

LondonMelbourne

LHR - AVV

LHRAVV

London Heathrow

Wed 11/2

08:45-23:15

2 stops27h 30m

Melbourne Avalon

Wed 25/2

15:00-11:30

2 stops31h 30m

£807

LondonMelbourne

LGW - MEL

LGWMEL

London Gatwick

Sun 30/11

17:00-14:05

1 stop34h 05m

Melbourne

Thu 4/12

12:00-06:30

1 stop29h 30m

£809

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 28/2

21:15-12:15

1 stop28h 00m

Sydney Kingsford Smith

Tue 17/3

22:10-16:55

1 stop29h 45m

£812

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 22/2

13:55-17:55

1 stop41h 00m

Sydney Kingsford Smith

Sat 14/3

21:45-14:30

1 stop27h 45m

£825

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 18/5

21:10-10:45

1 stop28h 35m

Sydney Kingsford Smith

Thu 28/5

22:10-16:30

1 stop27h 20m

£825

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 16/5

21:10-10:45

1 stop28h 35m

Sydney Kingsford Smith

Sun 31/5

22:10-16:30

1 stop27h 20m

£825

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 4/3

14:50-11:55

2 stops34h 05m

Sydney Kingsford Smith

Mon 16/3

15:25-14:05

2 stops33h 40m

£836

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 6/3

19:20-06:35

1 stop24h 15m

Sydney Kingsford Smith

Sat 21/3

21:45-12:05

1 stop25h 20m

£838

LondonBrisbane

LHR - BNE

LHRBNE

London Heathrow

Sat 14/3

16:40-06:45

2 stops28h 05m

Brisbane

Mon 23/3

08:00-14:55

2 stops40h 55m

£852

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Tue 3/3

14:05-06:50

1 stop29h 45m

Sydney Kingsford Smith

Fri 20/3

15:50-05:55

1 stop25h 05m

£888

Flights are sorted by cheapest return flights first.

Deals found on 19/11

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, February is the cheapest month in which you can book a flight from London to Australia (average of £454). Flying from London to Australia in July is currently the most expensive (average of £767). 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 20 November 2025.

It’s optimal to fly from London to Australia in the afternoon. By choosing this option you can save up to 4% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from London to Australia?

Use this chart to determine the cheapest time to fly return from London to Australia. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London to Australia flight should consider departing on Tuesday evenings when fares are most often at their lowest. Saturday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

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 20 November 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).

How often are flights $[0, preposition:'from ']$[0, article:'from ']$[0, place:'from'] $[1, preposition:'to ']$[1, article:'to ']$[1, place:'to'] delayed?

About 30% of weekly flights between $[0, place:'genitive'] and $[1, place:'genitive'] have experienced delays in the past year, with the average delay time being 107 minutes.

What is the most punctual flight time for $[0,article:'genitive ']$[0,place:'genitive'] $[1, preposition:'to ']$[1, article:'to ']$[1, place:'to'] flights?

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

Which airline has the best punctuality record on $[0,article:'genitive ']$[0,place:'genitive'] $[1, preposition:'to ']$[1, article:'to ']$[1, place:'to'] flights?

Over the past year, Qantas Airways have had the lowest number of delays on this route, with just 30% of flights being delayed.

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 20 November 2025.
See what other customers who have flown with Emirates, Singapore Airlines, andCathay Pacific from London to Australia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

8.2

Boarding

8.1

Comfort

8.0

Overall

8.1

Food

7.9

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

Entertainment

8.2

Boarding

8.1

Comfort

8.0

Overall

8.1

Food

7.9

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

Entertainment

8.2

Boarding

8.1

Comfort

8.0

Overall

8.1

Food

7.9

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

Entertainment

8.2

Boarding

8.1

Comfort

8.0

Overall

8.1

Food

7.9

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

Entertainment

8.2

Boarding

8.1

Comfort

8.0

Overall

8.1

Food

7.9

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

Entertainment

8.2

Boarding

8.1

Comfort

8.0

Overall

8.1

Food

7.9

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

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?

    For as low as £812, China Eastern can have you in Australia from London in 28h. Airlines will cover a distance of 10568 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    The cheapest airline one-way is China Southern, with whom users have recently found tickets for as low as £437. However, be on the lookout for offers from China Eastern and Tianjin Airlines, as they are both options that can get you from London to Australia for a low price.

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

  • What are the cheapest flights from London to Australia?

    Looking at all options, your cheapest flight can be booked for £971. While the most popular route (London Heathrow - Melbourne) can be booked for £565 on average, our data indicates £4,087 when flying from London to Australia.

  • 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, February is the cheapest month in which you can book a flight from London to Australia (average of £454). Flying from London to Australia in July is currently the most expensive (average of £767). 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 are the most eco-friendly airlines from London to Australia?

    As a frequent flyer, you might want to help keep the planet clean by flying green via flights that have advanced mechanisms to reduce aviation emissions. Some of the best eco-friendly airlines to Australia from London include Virgin Atlantic, Alitalia, Air France, Air India, Delta Airlines, and more. These airlines engage in carbon offset programs that contribute to the neutralisation of emissions from flights. Ozone-friendly air passenger carriers engage in renewable energy projects that help reduce the climate impact of your flight. Air services such as Delta Airlines use biofuels which are more ozone-friendly than jet fuel. However, these possibilities are more achievable when you decide to use eco-friendly airlines as your means of transport every time. Furthermore, some airlines permit travellers to participate in funding the advancement of sustainable air fuels.

  • How can I fly more sustainably from London to Australia?

    We can help you book your sustainable travel through this platform. Additionally, we supply you with all the information you need to know about eco-friendly flights. You can minimise your carbon footprint by flying non-polluting commuter airlines. Newer and bigger planes have invested in promoting clean air travel technologies that help reduce carbon emissions. Of course, you can help your carbon footprint by travelling light and packing less. The plane will save more fuel if every passenger on your flight carries 1-2kg less language. Airlines can fly greener by reducing fuel consumption. Additionally, you can fly more sustainably to Australia from London by air shuttles that have removed all single-use plastic items from the flights. While onboard your flight, you may also want to select environmentally-friendly snacks.

See more FAQs

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Alternative routes for London to Australia

See prices for flight routes from nearby airports that may be better suited for you.

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 858,174 searches. Data last updated 20 November 2025.
AirlineCheapestAverageFlexibilityOn-time
AirAsiaCheapest£131Average£181FlexibilityNo cancel feeOn-time66%
Search AirAsia flights
Beijing Capital AirlinesCheapest£329Average£634FlexibilityNo cancel feeOn-timeN/A
Search Beijing Capital Airlines flights
Hainan AirlinesCheapest£344Average£874FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Royal Brunei AirlinesCheapest£654Average£791FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
Vietnam AirlinesCheapest£754Average£1,052FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
SWISSCheapest£756Average£1,025FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Austrian AirlinesCheapest£761Average£846FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Air New ZealandCheapest£769Average£1,230FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Air FranceCheapest£774Average£1,207FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air MauritiusCheapest£853Average£974FlexibilityNo cancel feeOn-time82%
Search Air Mauritius 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 makes it easy to find London to Australia flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to Australia.

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

Yes, we can. To see specific flights from London to Australia with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Not ready to book yet? You can track prices for flights from London to Australia on Cheapflights with our Price Alert feature and get notified when better prices are available.

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