Cheap flights from London to Sydney from £450

1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from London to Sydney

Cheap return flights

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China Eastern Logo
12:30 - 07:20LHR  London Heathrow-SYD Sydney Kingsford Smith
31h 50m1 stop Shanghai Pu Dong
China Eastern Logo
11:10 - 17:30SYD  Sydney Kingsford Smith-LHR London Heathrow
41h 20m2 stops Xi'an Xianyang Shanghai Pu Dong
£788China Eastern
Sat, 20 Feb - Wed, 10 Mar
China Eastern Logo
21:00 - 13:35LHR  London Heathrow-SYD Sydney Kingsford Smith
29h 35m1 stop Shanghai Pu Dong
China Eastern Logo
21:30 - 17:30SYD  Sydney Kingsford Smith-LHR London Heathrow
31h 00m1 stop Shanghai Pu Dong
£788China Eastern
Sat, 28 Nov - Mon, 14 Dec
China Southern Logo
21:30 - 20:25LHR  London Heathrow-SYD Sydney Kingsford Smith
35h 55m2 stops Beijing Daxing Intl Guangzhou Baiyun
China Southern Logo
11:25 - 17:55SYD  Sydney Kingsford Smith-LHR London Heathrow
65h 30m2 stops Guangzhou Baiyun Beijing Daxing Intl
£788China Southern
Sat, 20 Feb - Wed, 10 Mar
China Southern Logo
21:30 - 20:25LHR  London Heathrow-SYD Sydney Kingsford Smith
35h 55m2 stops Beijing Daxing Intl Guangzhou Baiyun
China Southern Logo
15:10 - 17:55SYD  Sydney Kingsford Smith-LHR London Heathrow
37h 45m2 stops Guangzhou Baiyun Beijing Daxing Intl
£788China Southern
Mon, 15 Feb - Thu, 4 Mar
Multiple Airlines Logo
21:00 - 14:50LHR  London Heathrow-SYD Sydney Kingsford Smith
30h 50m1 stop Chongqing Jiangbei Intl
Multiple Airlines Logo
10:30 - 15:55SYD  Sydney Kingsford Smith-LHR London Heathrow
40h 25m1 stop Beijing Capital
£788Multiple Airlines
Sat, 23 Jan - Tue, 2 Feb
Multiple Airlines Logo
07:15 - 08:05LGW  London Gatwick-SYD Sydney Kingsford Smith
37h 50m2 stops Paris Charles de Gaulle Beijing Capital
Multiple Airlines Logo
10:30 - 06:20SYD  Sydney Kingsford Smith-LGW London Gatwick
30h 50m1 stop Beijing Capital
£788Multiple Airlines
Thu, 31 Dec - Sun, 24 Jan
Air China Logo
11:35 - 08:05LGW  London Gatwick-SYD Sydney Kingsford Smith
33h 30m1 stop Beijing Capital
Air China Logo
10:30 - 06:20SYD  Sydney Kingsford Smith-LGW London Gatwick
30h 50m1 stop Beijing Capital
£790Air China
Mon, 7 Dec - Thu, 18 Feb
Air China Logo
17:45 - 08:05LHR  London Heathrow-SYD Sydney Kingsford Smith
27h 20m1 stop Beijing Capital
Air China Logo
10:55 - 20:25SYD  Sydney Kingsford Smith-LHR London Heathrow
43h 30m1 stop Beijing Capital
£793Air China
Fri, 26 Feb - Mon, 29 Mar
Air India Logo
13:00 - 19:45LHR  London Heathrow-SYD Sydney Kingsford Smith
43h 45m1 stop New Delhi Indira Gandhi Intl
Air India Logo
22:30 - 06:35SYD  Sydney Kingsford Smith-LHR London Heathrow
43h 05m1 stop New Delhi Indira Gandhi Intl
£795Air India
Wed, 2 Dec - Fri, 15 Jan
Air India Logo
08:45 - 19:45LHR  London Heathrow-SYD Sydney Kingsford Smith
24h 00m1 stop New Delhi Indira Gandhi Intl
Air India Logo
22:30 - 06:35SYD  Sydney Kingsford Smith-LHR London Heathrow
43h 05m1 stop New Delhi Indira Gandhi Intl
£796Air India
Thu, 3 Dec - Wed, 13 Jan

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Shenzhen Airlines flights from London to Sydney

Our best Shenzhen Airlines deals on London to Sydney flight tickets
Shenzhen Airlines
30 Dec
LHR21:10London Heathrow
29h 30m
1 stop
SYD13:40Sydney Kingsford Smith
20 Jan
SYD22:10Sydney Kingsford Smith
33h 20m
1 stop
LHR20:30London Heathrow
£800
Shenzhen Airlines
30 Dec
LHR21:10London Heathrow
29h 30m
1 stop
SYD13:40Sydney Kingsford Smith
18 Jan
SYD22:10Sydney Kingsford Smith
33h 20m
1 stop
LHR20:30London Heathrow
£803

Air India flights from London to Sydney

Our best Air India deals on London to Sydney flight tickets
Air India
14 Nov
LHR22:00London Heathrow
34h 45m
1 stop
SYD19:45Sydney Kingsford Smith
16 Nov
SYD22:30Sydney Kingsford Smith
43h 05m
1 stop
LHR06:35London Heathrow
£804
Air India
9 Nov
LHR08:45London Heathrow
24h 00m
1 stop
SYD19:45Sydney Kingsford Smith
15 Nov
SYD22:30Sydney Kingsford Smith
33h 00m
1 stop
LHR20:30London Heathrow
£806
Air India
7 Dec
LHR08:45London Heathrow
24h 00m
1 stop
SYD19:45Sydney Kingsford Smith
22 Dec
SYD09:50Sydney Kingsford Smith
45h 40m
1 stop
LHR20:30London Heathrow
£817

momondo Fare Finder

 
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

Cheapest return flight

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Sat 20/2

12:30-07:20

1 stop31h 50m

Sydney Kingsford Smith

Wed 10/3

11:10-17:30

2 stops41h 20m

£788
Fastest return journey

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Sat 28/11

21:00-13:35

1 stop29h 35m

Sydney Kingsford Smith

Mon 14/12

21:30-17:30

1 stop31h 00m

£788

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Sat 20/2

21:30-20:25

2 stops35h 55m

Sydney Kingsford Smith

Wed 10/3

11:25-17:55

2 stops65h 30m

£788

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Mon 15/2

21:30-20:25

2 stops35h 55m

Sydney Kingsford Smith

Thu 4/3

15:10-17:55

2 stops37h 45m

£788

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Sat 23/1

21:00-14:50

1 stop30h 50m

Sydney Kingsford Smith

Tue 2/2

10:30-15:55

1 stop40h 25m

£788

LondonSydney

LGW London Gatwick - SYD Sydney Kingsford Smith

LGWSYD

London Gatwick

Thu 31/12

07:15-08:05

2 stops37h 50m

Sydney Kingsford Smith

Sun 24/1

10:30-06:20

1 stop30h 50m

£788

LondonSydney

LGW London Gatwick - SYD Sydney Kingsford Smith

LGWSYD

London Gatwick

Mon 7/12

11:35-08:05

1 stop33h 30m

Sydney Kingsford Smith

Thu 18/2

10:30-06:20

1 stop30h 50m

£790

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Fri 26/2

17:45-08:05

1 stop27h 20m

Sydney Kingsford Smith

Mon 29/3

10:55-20:25

1 stop43h 30m

£793

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Wed 2/12

13:00-19:45

1 stop43h 45m

Sydney Kingsford Smith

Fri 15/1

22:30-06:35

1 stop43h 05m

£795

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Thu 3/12

08:45-19:45

1 stop24h 00m

Sydney Kingsford Smith

Wed 13/1

22:30-06:35

1 stop43h 05m

£796

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?

Prices are currently typical for flights on this route.

Typical prices usually range from £725 to £1,075.
The lowest price recently found on this route was £788.

What is the cheapest month to fly to Sydney?

In general, May is the cheapest month to fly from London to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £889. If you don’t want to visit Sydney in May, then you should wait until June to fly from London, when ticket prices are also cheap, with an average price of £927.

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

The cheapest day to depart on your flight to Sydney is on a Monday when prices can be found for as low as £1,142. This is often the case because there is less demand to fly during this day of the week. On the other hand, Thursday is the most expensive day to depart from London because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,294.

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 from London 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 £1,092 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 £1,017 on momondo.

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

There are 4 cabin classes available to choose from on London to Sydney 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 7% 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 November 2026, prices for London to Sydney flights are approximately 24% 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

Best price found

£450

Fastest flight time

21h 25m

Direct flights

Every day

Airports in Sydney

1 airport
The best one-way flight to Sydney from London in the past 72 hours is £450. The best return flight deal from London to Sydney found on momondo in the last 72 hours is £788.
The fastest flight from London to Sydney takes 21h 25m
Direct flights go from London to Sydney every day.
There is 1 airport in Sydney. From London there are direct flights to Sydney Kingsford Smith (SYD).

Frequently asked questions about flying from London to Sydney

  • How far is London to Sydney Kingsford Smith by plane?

    Sydney Kingsford Smith is 10552.8 mi away from London. Flights usually cover this in 21h 25m, depending on flying conditions and air traffic around both airports.

  • 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 were last updated today.

  • 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 license 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
Hainan AirlinesPriceFrom £205Free CancellationRating
8.4
73 reviews
Search Hainan Airlines flights
Air ChinaPriceFrom £412Free CancellationRating
7.5
168 reviews
Search Air China flights
Virgin AtlanticPriceFrom £590Free CancellationRating
7.5
698 reviews
Search Virgin Atlantic flights
China EasternPriceFrom £611Free CancellationRating
7.3
249 reviews
Search China Eastern flights
Asiana AirlinesPriceFrom £681Free CancellationRating
8.1
570 reviews
Search Asiana Airlines flights
Turkish AirlinesPriceFrom £690Free CancellationRating
7.4
4,469 reviews
Search Turkish Airlines flights
China AirlinesPriceFrom £767Free CancellationRating
8.3
856 reviews
Search China Airlines flights
Malaysia AirlinesPriceFrom £786Free CancellationRating
7.3
321 reviews
Search Malaysia Airlines flights
LufthansaPriceFrom £869Free CancellationRating
6.8
8,294 reviews
Search Lufthansa flights
Oman AirPriceFrom £939Free CancellationRating
8.0
144 reviews
Search Oman Air flights

Travelling to a place near Sydney?

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

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Sydney. momondo saves you time and could save you money on your trip.

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?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sydney from London.

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.

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1 adult
Wed 9/12
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