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Cheap flights from London to Sydney from $891

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 Sydney departing on 11/11. 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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China Southern Logo
22:00 - 20:20LHR-SYD
35h 20m1 stop
China Southern Logo
22:10 - 18:35SYD-LHR
55h 25m2 stops
$1,431China Southern
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Mon, 10 Nov - Sun, 30 Nov
China Southern Logo
21:30 - 20:20LHR-SYD
35h 50m2 stops
China Southern Logo
09:20 - 14:00SYD-LHR
63h 40m2 stops
$1,433China Southern
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Thu, 6 Nov - Mon, 10 Nov
China Eastern Logo
17:00 - 06:30LGW-SYD
26h 30m1 stop
China Eastern Logo
21:30 - 14:00SYD-LGW
27h 30m1 stop
$1,436China Eastern
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Tue, 24 Feb - Mon, 9 Mar
Hainan Airlines Logo
21:00 - 14:55LHR-SYD
54h 55m2 stops
Hainan Airlines Logo
21:00 - 17:55SYD-LHR
31h 55m1 stop
$1,436Hainan Airlines
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Mon, 3 Nov - Sat, 29 Nov
Hainan Airlines Logo
21:00 - 14:55LHR-SYD
54h 55m2 stops
Hainan Airlines Logo
21:00 - 17:55SYD-LHR
31h 55m2 stops
$1,437Hainan Airlines
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Mon, 24 Nov - Sun, 28 Dec
China Eastern Logo
10:30 - 11:00LGW-SYD
37h 30m2 stops
China Eastern Logo
12:20 - 06:30SYD-LGW
53h 10m2 stops
$1,439China Eastern
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Tue, 25 Nov - Tue, 2 Dec
Air China Logo
17:40 - 15:30LHR-SYD
34h 50m1 stop
Air China Logo
20:40 - 17:50SYD-LHR
32h 10m1 stop
$1,445Air China
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Sun, 2 Nov - Sun, 9 Nov
Air China Logo
17:40 - 15:30LHR-SYD
34h 50m1 stop
Air China Logo
20:40 - 17:50SYD-LHR
32h 10m1 stop
$1,463Air China
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Thu, 20 Nov - Thu, 11 Dec
SWISS Logo
19:10 - 07:15LCY-SYD
25h 05m2 stops
SWISS Logo
15:15 - 08:45SYD-LCY
28h 30m2 stops
$1,842SWISS
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Mon, 2 Mar - Thu, 19 Mar
SWISS Logo
19:10 - 07:15LCY-SYD
25h 05m2 stops
SWISS Logo
15:15 - 08:45SYD-LCY
28h 30m2 stops
$1,845SWISS
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Thu, 5 Mar - Thu, 19 Mar

SWISS flights from London to Sydney

Our best SWISS deals on London to Sydney flight tickets
SWISS
2 Mar
LCY19:10London City
25h 05m
2 stops
SYD07:15Sydney Kingsford Smith
19 Mar
SYD15:15Sydney Kingsford Smith
28h 30m
2 stops
LCY08:45London City
$1,842
Find similar
SWISS
5 Mar
LCY19:10London City
25h 05m
2 stops
SYD07:15Sydney Kingsford Smith
19 Mar
SYD15:15Sydney Kingsford Smith
28h 30m
2 stops
LCY08:45London City
$1,845
Find similar
SWISS
2 Mar
LCY19:10London City
25h 05m
2 stops
SYD07:15Sydney Kingsford Smith
11 Mar
SYD15:15Sydney Kingsford Smith
28h 25m
2 stops
LCY08:40London City
$1,851
Find similar

Air China flights from London to Sydney

Our best Air China deals on London to Sydney flight tickets
Air China
2 Nov
LHR17:40London Heathrow
34h 50m
1 stop
SYD15:30Sydney Kingsford Smith
9 Nov
SYD20:40Sydney Kingsford Smith
32h 10m
1 stop
LHR17:50London Heathrow
$1,445
Find similar
Air China
20 Nov
LHR17:40London Heathrow
34h 50m
1 stop
SYD15:30Sydney Kingsford Smith
11 Dec
SYD20:40Sydney Kingsford Smith
32h 10m
1 stop
LHR17:50London Heathrow
$1,463
Find similar
Air China
4 Nov
LHR20:25London Heathrow
32h 05m
1 stop
SYD15:30Sydney Kingsford Smith
11 Nov
SYD20:40Sydney Kingsford Smith
30h 15m
1 stop
LHR15:55London Heathrow
$1,486
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momondo Fare Finder

 
Customise your flight search to find flights from London to Sydney 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 29 October 2025.
Use the filters below to find and compare flights from London to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 10/11

22:00-20:20

1 stop35h 20m

Sydney Kingsford Smith

Sun 30/11

22:10-18:35

2 stops55h 25m

$1,431

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 6/11

21:30-20:20

2 stops35h 50m

Sydney Kingsford Smith

Mon 10/11

09:20-14:00

2 stops63h 40m

$1,433

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Tue 24/2

17:00-06:30

1 stop26h 30m

Sydney Kingsford Smith

Mon 9/3

21:30-14:00

1 stop27h 30m

$1,436

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 3/11

21:00-14:55

2 stops54h 55m

Sydney Kingsford Smith

Sat 29/11

21:00-17:55

1 stop31h 55m

$1,436

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 24/11

21:00-14:55

2 stops54h 55m

Sydney Kingsford Smith

Sun 28/12

21:00-17:55

2 stops31h 55m

$1,437

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Tue 25/11

10:30-11:00

2 stops37h 30m

Sydney Kingsford Smith

Tue 2/12

12:20-06:30

2 stops53h 10m

$1,439

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 2/11

17:40-15:30

1 stop34h 50m

Sydney Kingsford Smith

Sun 9/11

20:40-17:50

1 stop32h 10m

$1,445

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 20/11

17:40-15:30

1 stop34h 50m

Sydney Kingsford Smith

Thu 11/12

20:40-17:50

1 stop32h 10m

$1,463

LondonSydney

LCY - SYD

LCYSYD

London City

Mon 2/3

19:10-07:15

2 stops25h 05m

Sydney Kingsford Smith

Thu 19/3

15:15-08:45

2 stops28h 30m

$1,842

LondonSydney

LCY - SYD

LCYSYD

London City

Thu 5/3

19:10-07:15

2 stops25h 05m

Sydney Kingsford Smith

Thu 19/3

15:15-08:45

2 stops28h 30m

$1,845

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 Sydney from

How to get the cheapest flight ticket from London to Sydney

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 typical price of a round-trip flight between London and Sydney?

What is the cheapest month to fly to Sydney?

The month of May is, on average, the cheapest month to fly to Sydney from London, with most prices found around $1,608. If you aren’t able to travel to Sydney during the month of May, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $1,713.

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

Our data shows that Tuesday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $2,143. The most expensive day to fly to Sydney is Saturday, with ticket prices averaging around $3,069.

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

According to our data, the cheapest time of day to fly to Sydney is in the afternoon. momondo users have found flights departing from London to Sydney in the afternoon for as low as $1,920. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $2,520 on average. Flights to Sydney from London in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest London to Sydney Kingsford Smith flight route?

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

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

You are more likely to see cheaper flights to Sydney from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $2,030 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from London for as low as $1,731 on momondo.

What cabin class options are available on London to Sydney Kingsford Smith flights?

There are 2 cabin classes available to choose from on London to Sydney Kingsford Smith 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 Sydney flights?

You could potentially save up to 18% on your flight if you consider stops on a London to Sydney flight.

How have London to Sydney flight prices changed over time?

As of October 2025, prices for London to Sydney flights are approximately 16% cheaper when compared to flights at the same time last year.

When to book flights from London to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from London to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London to Sydney (LON to SYD) flight deals and tips

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

Fastest flight time

22h 55m

Direct flights

Every day

Airports in Sydney

1 airport
The fastest flight from London to Sydney takes 22h 55m
Direct flights go from London to Sydney every day.
There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)
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  • How far is London to Sydney Kingsford Smith by plane?

    A flight from London to Sydney Kingsford Smith will travel around 16983.0 km. A reasonable flight in good conditions will take 24h 15m.

  • When did momondo last update prices for flights from London to Sydney Kingsford Smith Airport?

    Prices for flights from London to Sydney Kingsford Smith Airport refresh daily.

  • How many operators does momondo search for flights from London to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from London to Sydney Kingsford Smith Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from London to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

  • What is the most popular airline from London to Sydney?

Best airlines flying from London to Sydney

Compare and see reviews for airlines that fly from London to Sydney with momondo
Airline
Rating
Free cancellation
Price
China EasternPriceFrom $1,087Free cancellationRating
7.2
174 reviews
Search China Eastern flights
China SouthernPriceFrom $1,101Free cancellationRating
7.4
117 reviews
Search China Southern flights
Air ChinaPriceFrom $1,180Free cancellationRating
7.2
117 reviews
Search Air China flights
Air IndiaPriceFrom $1,497Free cancellationRating
5.5
2,941 reviews
Search Air India flights
Malaysia AirlinesPriceFrom $1,532Free cancellationRating
7.3
278 reviews
Search Malaysia Airlines flights
China AirlinesPriceFrom $1,561Free cancellationRating
8.3
776 reviews
Search China Airlines flights
Etihad AirwaysPriceFrom $1,581Free cancellationRating
7.4
1,283 reviews
Search Etihad Airways flights
Cathay PacificPriceFrom $1,658Free cancellationRating
7.6
1,042 reviews
Search Cathay Pacific flights
British AirwaysPriceFrom $1,672Free cancellationRating
6.7
7,485 reviews
Search British Airways flights
EmiratesPriceFrom $1,726Free cancellationRating
8.1
3,393 reviews
Search Emirates flights

  • Qantas Airways Flights From London to Sydney

    The lowest priced Qantas Airways flight from London to Sydney from the last 72 hours was $2,034. Generally, Qantas Airways has 7 flights on this route every week with an average price of $2,763. Qantas Airways is rated 7.5/10 by our users.

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Terrigal
Penrith
Katoomba
Lithgow
Leura
Manly
Bondi Beach
Coogee
Randwick
Cronulla
Charlestown
Newport
Swansea

Why use momondo?

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

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

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

Yes. momondo allows you to filter the results for London to Sydney flights to just show those with flexible booking policies.

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

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 Sydney.

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

Of course. momondo tracks the price of London to Sydney flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Sydney trip

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