Cheap flights from London to Sydney from £474

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 19/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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China Eastern Logo
17:00 - 10:00LGW-SYD
30h 00m1 stop
China Eastern Logo
20:30 - 15:00SYD-LGW
27h 30m1 stop
£750China Eastern
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Sat, 14 Mar - Wed, 8 Apr
Multiple Airlines Logo
08:45 - 19:15LHR-SYD
23h 30m1 stop
Multiple Airlines Logo
14:25 - 09:55SYD-LHR
30h 30m2 stops
£750Multiple Airlines
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Tue, 10 Feb - Mon, 16 Feb
China Eastern Logo
10:30 - 11:00LGW-SYD
61h 30m2 stops
China Eastern Logo
12:00 - 14:00SYD-LGW
37h 00m1 stop
£751China Eastern
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Mon, 29 Dec - Thu, 15 Jan
Multiple Airlines Logo
08:05 - 07:30STN-SYD
36h 25m3 stops
Multiple Airlines Logo
21:15 - 16:20SYD-STN
30h 05m2 stops
£751Multiple Airlines
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Thu, 12 Mar - Mon, 23 Mar
Air India Logo
13:00 - 19:15LHR-SYD
43h 15m1 stop
Air India Logo
19:30 - 11:30SYD-LHR
25h 00m1 stop
£751Air India
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Sat, 14 Mar - Tue, 7 Apr
China Southern Logo
17:15 - 07:30LHR-SYD
51h 15m2 stops
China Southern Logo
08:10 - 18:35SYD-LHR
45h 25m1 stop
£752China Southern
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Wed, 31 Dec - Wed, 14 Jan
Air China Logo
20:25 - 15:30LHR-SYD
32h 05m1 stop
Air China Logo
20:40 - 17:50SYD-LHR
32h 10m1 stop
£754Air China
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Sun, 1 Mar - Sat, 14 Mar
China Southern Logo
22:00 - 20:20LHR-SYD
35h 20m1 stop
China Southern Logo
22:00 - 18:35SYD-LHR
31h 35m1 stop
£755China Southern
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Thu, 26 Feb - Fri, 20 Mar
Air India Logo
22:00 - 19:15LHR-SYD
34h 15m1 stop
Air India Logo
20:30 - 07:30SYD-LHR
45h 00m1 stop
£758Air India
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Fri, 20 Mar - Sat, 4 Apr
Lufthansa Logo
09:15 - 06:10LCY-SYD
35h 55m2 stops
Lufthansa Logo
14:05 - 18:35SYD-LCY
37h 30m2 stops
£942Lufthansa
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Fri, 8 May - Tue, 2 Jun

China Southern flights from London to Sydney

Our best China Southern deals on London to Sydney flight tickets
China Southern
26 Apr
LHR22:10London Heathrow
25h 15m
1 stop
SYD08:25Sydney Kingsford Smith
26 Jun
SYD21:45Sydney Kingsford Smith
30h 15m
1 stop
LHR19:00London Heathrow
China Southern
23 May
LHR22:10London Heathrow
36h 30m
1 stop
SYD19:40Sydney Kingsford Smith
27 May
SYD21:45Sydney Kingsford Smith
30h 15m
1 stop
LHR19:00London Heathrow
China Southern
15 Mar
LHR17:15London Heathrow
29h 10m
2 stops
SYD09:25Sydney Kingsford Smith
24 Mar
SYD11:25Sydney Kingsford Smith
42h 10m
2 stops
LHR18:35London Heathrow

Etihad Airways flights from London to Sydney

Our best Etihad Airways deals on London to Sydney flight tickets
Etihad Airways
18 Feb
LHR13:55London Heathrow
41h 00m
1 stop
SYD17:55Sydney Kingsford Smith
9 Mar
SYD21:45Sydney Kingsford Smith
25h 20m
1 stop
LHR12:05London Heathrow
Etihad Airways
26 Feb
LHR13:55London Heathrow
41h 00m
1 stop
SYD17:55Sydney Kingsford Smith
16 Mar
SYD21:45Sydney Kingsford Smith
25h 20m
1 stop
LHR12:05London Heathrow
Etihad Airways
17 Feb
LHR19:20London Heathrow
35h 35m
1 stop
SYD17:55Sydney Kingsford Smith
24 Feb
SYD21:45Sydney Kingsford Smith
27h 45m
1 stop
LHR14:30London Heathrow

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 279,928 searches. Data last updated 27 November 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

LGW - SYD

LGWSYD

London Gatwick

Sat 14/3

17:00-10:00

1 stop30h 00m

Sydney Kingsford Smith

Wed 8/4

20:30-15:00

1 stop27h 30m

£750

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 10/2

08:45-19:15

1 stop23h 30m

Sydney Kingsford Smith

Mon 16/2

14:25-09:55

2 stops30h 30m

£750

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Mon 29/12

10:30-11:00

2 stops61h 30m

Sydney Kingsford Smith

Thu 15/1

12:00-14:00

1 stop37h 00m

£751

LondonSydney

STN - SYD

STNSYD

London Stansted

Thu 12/3

08:05-07:30

3 stops36h 25m

Sydney Kingsford Smith

Mon 23/3

21:15-16:20

2 stops30h 05m

£751

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 14/3

13:00-19:15

1 stop43h 15m

Sydney Kingsford Smith

Tue 7/4

19:30-11:30

1 stop25h 00m

£751

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 31/12

17:15-07:30

2 stops51h 15m

Sydney Kingsford Smith

Wed 14/1

08:10-18:35

1 stop45h 25m

£752

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 1/3

20:25-15:30

1 stop32h 05m

Sydney Kingsford Smith

Sat 14/3

20:40-17:50

1 stop32h 10m

£754

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 26/2

22:00-20:20

1 stop35h 20m

Sydney Kingsford Smith

Fri 20/3

22:00-18:35

1 stop31h 35m

£755

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 20/3

22:00-19:15

1 stop34h 15m

Sydney Kingsford Smith

Sat 4/4

20:30-07:30

1 stop45h 00m

£758

LondonSydney

LCY - SYD

LCYSYD

London City

Fri 8/5

09:15-06:10

2 stops35h 55m

Sydney Kingsford Smith

Tue 2/6

14:05-18:35

2 stops37h 30m

£942

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 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 £798. 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 £853.

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 £1,152. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday 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 £1,330.

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 £927. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Sydney, so prices are often more expensive at around £1,223 per ticket.

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 £1,009 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 £845 on momondo.

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

There are 4 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 1% 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 2025, prices for London to Sydney flights are approximately 11% 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

£991

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 £991. The best return flight deal from London to Sydney found on momondo in the last 72 hours is £1,125.
The fastest flight from London to Sydney takes 21h 25m
Direct flights go from London to Sydney every day.
There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)
  • 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 22h 05m, 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 £342Free CancellationRating
8.2
55 reviews
Search Hainan Airlines flights
Air ChinaPriceFrom £493Free CancellationRating
7.2
126 reviews
Search Air China flights
Turkish AirlinesPriceFrom £704Free CancellationRating
7.3
4,060 reviews
Search Turkish Airlines flights
China AirlinesPriceFrom £745Free CancellationRating
8.3
782 reviews
Search China Airlines flights
Vietnam AirlinesPriceFrom £749Free CancellationRating
7.6
215 reviews
Search Vietnam Airlines flights
SWISSPriceFrom £751Free CancellationRating
7.5
1,794 reviews
Search SWISS flights
Austrian AirlinesPriceFrom £756Free CancellationRating
7.6
874 reviews
Search Austrian Airlines flights
Air New ZealandPriceFrom £764Free CancellationRating
8.0
537 reviews
Search Air New Zealand flights
Qatar AirwaysPriceFrom £833Free CancellationRating
7.4
3,675 reviews
Search Qatar Airways flights
LufthansaPriceFrom £839Free CancellationRating
6.8
7,594 reviews
Search Lufthansa flights

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Bondi Beach
Coogee
Wollongong
Manly
Randwick
Penrith
Cronulla
Leura
Katoomba
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
Sat 27/12
Sat 3/1

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