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Cheap flights from London to Australia from $848

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Australia departing on 8/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Cheap return flights

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Air China Logo
20:25 - 15:30LHR-SYD
32h 05m1 stop
Air China Logo
20:40 - 17:50SYD-LHR
32h 10m1 stop
$1,392Air China
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Fri, 28 Nov - Fri, 5 Dec
Air China Logo
17:40 - 15:30LHR-SYD
34h 50m1 stop
Air China Logo
20:40 - 17:50SYD-LHR
32h 10m1 stop
$1,393Air China
Find Deal
Thu, 27 Nov - Fri, 5 Dec
China Eastern Logo
10:30 - 09:30LGW-SYD
36h 00m2 stops
China Eastern Logo
12:00 - 06:30SYD-LGW
29h 30m1 stop
$1,407China Eastern
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Sun, 1 Mar - Sun, 22 Mar
China Southern Logo
22:00 - 20:20LHR-SYD
35h 20m1 stop
China Southern Logo
22:10 - 18:35SYD-LHR
31h 25m1 stop
$1,407China Southern
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Sat, 17 Jan - Mon, 2 Feb
China Eastern Logo
10:30 - 09:30LGW-SYD
36h 00m2 stops
China Eastern Logo
12:00 - 14:00SYD-LGW
37h 00m1 stop
$1,409China Eastern
Find Deal
Sun, 1 Mar - Tue, 24 Mar
Multiple Airlines Logo
21:05 - 18:50LHR-SYD
34h 45m3 stops
Multiple Airlines Logo
20:05 - 15:25SYD-LHR
30h 20m2 stops
$1,409Multiple Airlines
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Thu, 4 Dec - Thu, 29 Jan
China Southern Logo
21:30 - 20:20LHR-SYD
35h 50m2 stops
China Southern Logo
22:10 - 18:35SYD-LHR
55h 25m2 stops
$1,412China Southern
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Sat, 15 Nov - Sat, 29 Nov
Cathay Pacific Logo
17:50 - 06:55LHR-PER
29h 05m1 stop
Cathay Pacific Logo
08:30 - 06:30PER-LHR
30h 00m1 stop
$1,731Cathay Pacific
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Wed, 29 Oct - Wed, 12 Nov
Cathay Pacific Logo
20:15 - 22:55LHR-PER
42h 40m1 stop
Cathay Pacific Logo
00:25 - 17:20PER-LHR
24h 55m1 stop
$1,734Cathay Pacific
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Sun, 9 Nov - Fri, 21 Nov
Malaysia Airlines Logo
21:25 - 01:25LHR-PER
20h 00m1 stop
Malaysia Airlines Logo
16:15 - 15:25PER-LHR
31h 10m1 stop
$1,766Malaysia Airlines
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Sun, 1 Mar - Sun, 22 Mar

KLM flights from London to Australia

Our best KLM deals on London to Australia flight tickets
KLM
10 Nov
LCY17:05London City
27h 20m
2 stops
SYD07:25Sydney Kingsford Smith
4 Feb
SYD15:55Sydney Kingsford Smith
28h 35m
2 stops
LCY09:30London City
$2,120
Find similar
KLM
28 Oct
LCY17:05London City
26h 30m
2 stops
SYD06:35Sydney Kingsford Smith
10 Feb
SYD15:55Sydney Kingsford Smith
28h 35m
2 stops
LCY09:30London City
$2,268
Find similar

China Southern flights from London to Australia

Our best China Southern deals on London to Australia flight tickets
China Southern
17 Jan
LHR22:00London Heathrow
35h 20m
1 stop
SYD20:20Sydney Kingsford Smith
2 Feb
SYD22:10Sydney Kingsford Smith
31h 25m
1 stop
LHR18:35London Heathrow
$1,407
Find similar
China Southern
15 Nov
LHR21:30London Heathrow
35h 50m
2 stops
SYD20:20Sydney Kingsford Smith
29 Nov
SYD22:10Sydney Kingsford Smith
55h 25m
2 stops
LHR18:35London Heathrow
$1,412
Find similar
China Southern
6 Nov
LHR22:00London Heathrow
35h 20m
1 stop
SYD20:20Sydney Kingsford Smith
17 Nov
SYD22:10Sydney Kingsford Smith
31h 25m
1 stop
LHR18:35London Heathrow
$1,413
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momondo 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, momondo users made 78,305 searches. Data last updated 16 October 2025.
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

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 28/11

20:25-15:30

1 stop32h 05m

Sydney Kingsford Smith

Fri 5/12

20:40-17:50

1 stop32h 10m

$1,392

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 27/11

17:40-15:30

1 stop34h 50m

Sydney Kingsford Smith

Fri 5/12

20:40-17:50

1 stop32h 10m

$1,393

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Sun 1/3

10:30-09:30

2 stops36h 00m

Sydney Kingsford Smith

Sun 22/3

12:00-06:30

1 stop29h 30m

$1,407

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 17/1

22:00-20:20

1 stop35h 20m

Sydney Kingsford Smith

Mon 2/2

22:10-18:35

1 stop31h 25m

$1,407

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Sun 1/3

10:30-09:30

2 stops36h 00m

Sydney Kingsford Smith

Tue 24/3

12:00-14:00

1 stop37h 00m

$1,409

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 4/12

21:05-18:50

3 stops34h 45m

Sydney Kingsford Smith

Thu 29/1

20:05-15:25

2 stops30h 20m

$1,409

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 15/11

21:30-20:20

2 stops35h 50m

Sydney Kingsford Smith

Sat 29/11

22:10-18:35

2 stops55h 25m

$1,412

LondonPerth

LHR - PER

LHRPER

London Heathrow

Wed 29/10

17:50-06:55

1 stop29h 05m

Perth

Wed 12/11

08:30-06:30

1 stop30h 00m

$1,731

LondonPerth

LHR - PER

LHRPER

London Heathrow

Sun 9/11

20:15-22:55

1 stop42h 40m

Perth

Fri 21/11

00:25-17:20

1 stop24h 55m

$1,734

LondonPerth

LHR - PER

LHRPER

London Heathrow

Sun 1/3

21:25-01:25

1 stop20h 00m

Perth

Sun 22/3

16:15-15:25

1 stop31h 10m

$1,766

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Australia from

How to get the cheapest flight ticket from London to Australia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Australia?

In general, May is the cheapest month to fly from London to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,627. If you don’t want to visit Australia in May, then you should wait until June to fly from London, when ticket prices are also cheap, with an average price of $1,734.

What is the cheapest day to depart on your flight to Australia?

On average, the least expensive day to fly to Australia from London is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $2,168. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from London to Australia on a Saturday will generally be more expensive and average around $3,104. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Australia?

According to our data, the cheapest time of day to fly to Australia is in the afternoon. momondo users have found flights departing from London to Australia in the afternoon for as low as $2,053. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Australia are more costly in the evening, with an average ticket price of $2,549. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest London to Australia flight route?

Fly from London Heathrow to Sydney Kingsford Smith for the best London - Australia flight prices

How far in advance should I book a flight to Australia?

You are more likely to see cheaper flights to Australia from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $2,050 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from London for as low as $1,744 on momondo.

What cabin class options are available on London to Australia flights?

There are 3 cabin classes available to choose from on London to Australia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London to Australia flights?

You could potentially save up to 10% on your flight if you consider stops on a London to Australia flight.

Cheap London to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Australia

Best price found

$2,023

Fastest flight time

16h 40m

Direct flights

Every day

Airports in Australia

1 airport
The best one-way flight to Australia from London in the past 72 hours is $2,023. The best return flight deal from London to Australia found on momondo in the last 72 hours is $2,468.
The fastest flight from London to Australia takes 16h 40m
Direct flights go from London to Australia every day.
There is 1 airport near Australia: Perth (PER)
Search flight deals

  • When did momondo last update prices for flights from London to Australia?

    Prices for flights from London to Australia were last updated today.

  • How many operators does momondo search for flights from London to Australia?

  • How old do you have to be to fly from London to Australia?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from London to Australia.

  • What documentation or ID do you need to fly to Australia?

    The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from London to Australia?

Best airlines flying from London to Australia

Compare and see reviews for airlines that fly from London to Australia with momondo
Airline
Rating
Free cancellation
Price
China EasternPriceFrom $1,099Free cancellationRating
7.2
169 reviews
Search China Eastern flights
China SouthernPriceFrom $1,114Free cancellationRating
7.4
116 reviews
Search China Southern flights
British AirwaysPriceFrom $1,115Free cancellationRating
6.7
7,457 reviews
Search British Airways flights
Air ChinaPriceFrom $1,193Free cancellationRating
7.2
114 reviews
Search Air China flights
Royal Brunei AirlinesPriceFrom $1,397Free cancellationRating
0.0
0 reviews
Search Royal Brunei Airlines flights
EmiratesPriceFrom $1,462Free cancellationRating
8.1
3,375 reviews
Search Emirates flights
United AirlinesPriceFrom $1,476Free cancellationRating
7.4
8,982 reviews
Search United Airlines flights
Malaysia AirlinesPriceFrom $1,501Free cancellationRating
7.3
278 reviews
Search Malaysia Airlines flights
Air IndiaPriceFrom $1,514Free cancellationRating
5.5
2,937 reviews
Search Air India flights
Etihad AirwaysPriceFrom $1,522Free cancellationRating
7.4
1,280 reviews
Search Etihad Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Australia?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Australia . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from London to Australia with flexible booking policies on momondo?

momondo does allow users to show only those flights to Australia from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to Australia?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Australia.

I’m not ready to book a flight from London to Australia right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Australia, momondo offers a useful price alert feature which will track prices for flights to Australia from London and alert you when they change.

An easier way to manage your Australia trip

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