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Cheap flights from London to Sydney from €562

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 31/1. 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
0 bags
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Cheap return flights

Multiple Airlines Logo
22:00 - 20:35LHR-SYD
35h 35m3 stops
Multiple Airlines Logo
15:55 - 16:00SYD-LHR
35h 05m2 stops
€804Multiple Airlines
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Sun, 2 Nov - Sun, 9 Nov
Air China Logo
20:25 - 15:30LHR-SYD
32h 05m1 stop
Air China Logo
20:40 - 17:50SYD-LHR
32h 10m1 stop
€902Air China
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Sun, 15 Feb - Sat, 14 Mar
Air China Logo
20:25 - 15:30LHR-SYD
32h 05m1 stop
Air China Logo
20:40 - 17:50SYD-LHR
32h 10m1 stop
€908Air China
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Sun, 15 Feb - Sat, 14 Mar
Turkish Airlines Logo
17:45 - 07:40LHR-SYD
26h 55m2 stops
Turkish Airlines Logo
19:10 - 14:55SYD-LHR
30h 45m2 stops
€929Turkish Airlines
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Mon, 29 Dec - Wed, 21 Jan
China Airlines Logo
21:15 - 12:15LHR-SYD
28h 00m1 stop
China Airlines Logo
22:10 - 16:55SYD-LHR
29h 45m1 stop
€948China Airlines
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Sat, 31 Jan - Fri, 6 Mar
China Airlines Logo
21:15 - 12:15LHR-SYD
28h 00m1 stop
China Airlines Logo
22:10 - 16:55SYD-LHR
29h 45m1 stop
€950China Airlines
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Sat, 31 Jan - Fri, 6 Mar
Cathay Pacific Logo
22:05 - 12:00LHR-SYD
26h 55m1 stop
Cathay Pacific Logo
22:20 - 15:00SYD-LHR
27h 40m1 stop
€956Cathay Pacific
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Sun, 26 Oct - Sun, 9 Nov
Etihad Airways Logo
20:55 - 17:55LHR-SYD
34h 00m1 stop
Etihad Airways Logo
16:35 - 06:40SYD-LHR
25h 05m1 stop
€981Etihad Airways
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Thu, 5 Mar - Mon, 23 Mar
Etihad Airways Logo
08:50 - 17:55LHR-SYD
22h 05m1 stop
Etihad Airways Logo
21:30 - 12:05SYD-LHR
25h 35m1 stop
€983Etihad Airways
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Sun, 22 Feb - Fri, 6 Mar
Cathay Pacific Logo
17:50 - 07:15LHR-SYD
26h 25m1 stop
Cathay Pacific Logo
15:15 - 06:30SYD-LHR
26h 15m1 stop
€1,012Cathay Pacific
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Sun, 8 Feb - Mon, 9 Mar

United Airlines flights from London to Sydney

Our best United Airlines deals on London to Sydney flight tickets
United Airlines
30 Sept
LHR10:35London Heathrow
35h 20m
1 stop
SYD06:55Sydney Kingsford Smith
11 Oct
SYD11:20Sydney Kingsford Smith
30h 05m
1 stop
LHR07:25London Heathrow
€1,103
Find similar
United Airlines
30 Sept
LHR16:15London Heathrow
29h 40m
1 stop
SYD06:55Sydney Kingsford Smith
16 Oct
SYD11:20Sydney Kingsford Smith
33h 05m
1 stop
LHR10:25London Heathrow
€1,104
Find similar
United Airlines
28 Sept
LHR16:15London Heathrow
29h 40m
1 stop
SYD06:55Sydney Kingsford Smith
22 Oct
SYD11:20Sydney Kingsford Smith
30h 05m
1 stop
LHR07:25London Heathrow
€1,107
Find similar

China Airlines flights from London to Sydney

Our best China Airlines deals on London to Sydney flight tickets
China Airlines
31 Jan
LHR21:15London Heathrow
28h 00m
1 stop
SYD12:15Sydney Kingsford Smith
6 Mar
SYD22:10Sydney Kingsford Smith
29h 45m
1 stop
LHR16:55London Heathrow
€948
Find similar
China Airlines
31 Jan
LHR21:15London Heathrow
28h 00m
1 stop
SYD12:15Sydney Kingsford Smith
6 Mar
SYD22:10Sydney Kingsford Smith
29h 45m
1 stop
LHR16:55London Heathrow
€950
Find similar
China Airlines
1 Nov
LHR21:15London Heathrow
28h 00m
1 stop
SYD12:15Sydney Kingsford Smith
18 Nov
SYD22:10Sydney Kingsford Smith
29h 45m
1 stop
LHR16:55London Heathrow
€995
Find similar

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 13,528 searches. Data last updated 18 September 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

Sun 2/11

22:00-20:35

3 stops35h 35m

Sydney Kingsford Smith

Sun 9/11

15:55-16:00

2 stops35h 05m

€804

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 15/2

20:25-15:30

1 stop32h 05m

Sydney Kingsford Smith

Sat 14/3

20:40-17:50

1 stop32h 10m

€902

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 15/2

20:25-15:30

1 stop32h 05m

Sydney Kingsford Smith

Sat 14/3

20:40-17:50

1 stop32h 10m

€908

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 29/12

17:45-07:40

2 stops26h 55m

Sydney Kingsford Smith

Wed 21/1

19:10-14:55

2 stops30h 45m

€929

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 31/1

21:15-12:15

1 stop28h 00m

Sydney Kingsford Smith

Fri 6/3

22:10-16:55

1 stop29h 45m

€948

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 31/1

21:15-12:15

1 stop28h 00m

Sydney Kingsford Smith

Fri 6/3

22:10-16:55

1 stop29h 45m

€950

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 26/10

22:05-12:00

1 stop26h 55m

Sydney Kingsford Smith

Sun 9/11

22:20-15:00

1 stop27h 40m

€956

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 5/3

20:55-17:55

1 stop34h 00m

Sydney Kingsford Smith

Mon 23/3

16:35-06:40

1 stop25h 05m

€981

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 22/2

08:50-17:55

1 stop22h 05m

Sydney Kingsford Smith

Fri 6/3

21:30-12:05

1 stop25h 35m

€983

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 8/2

17:50-07:15

1 stop26h 25m

Sydney Kingsford Smith

Mon 9/3

15:15-06:30

1 stop26h 15m

€1,012

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 March is another great option to travel to Sydney, with average flight prices from London averaging around €947.

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

According to our data, Saturday is the cheapest day to fly to Sydney from London. The lowest ticket price found for a Saturday departure recently was €909. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around €1,208. These prices are subject to change though, so be sure to set up a Price Alert for flights to Sydney.

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

Flying to Sydney from London in the evening is the least expensive time of day to depart. momondo users have found prices as low as €933 when looking at flights departing in the evening. Try not to purchase tickets in the morning because they tend to be around €1,181. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 €1,119 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 €909 on momondo.

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

There is only 1 cabin class 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 57% 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 September 2025, prices for London to Sydney flights are approximately 13% 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

Mon, Tue and Sun

Airports in Sydney

1 airport
The fastest flight from London to Sydney takes 22h 55m
Direct flights go from London to Sydney on Monday, Tuesday and Sunday. There are no airlines offering direct flights..
There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)
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  • How far is London to Sydney Kingsford Smith by plane?

    There are 16983.0 km between London and Sydney Kingsford Smith. Typically, this will take 22h 05m by plane in normal conditions.

  • 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 are updated daily.

  • 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 stopovers 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 required travel and health documents for your Sydney Kingsford Smith Airport 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 Sydney Kingsford Smith Airport. 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 Sydney?

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Coogee
Randwick
Terrigal

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Sydney for you.

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

All flight searches from London to Sydney on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Sydney from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Sydney from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Fly your favourite airline to Sydney

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Aer Lingus
Etihad Airways
Turkish Airlines
KLM
Lufthansa
Qatar Airways
British Airways
Emirates
Scandinavian Airlines
Pegasus Airlines
Air France
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