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Cheap flights from London to Sydney from €569

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 7/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Air India Logo
21:05 - 19:15
LHR
-
SYD
35h 10m1 stop
Air India Logo
20:45 - 19:20
SYD
-
LHR
33h 35m1 stop
€913Air India
Tue, 17 Feb - Tue, 24 Feb
Air India Logo
08:45 - 19:15
LHR
-
SYD
23h 30m1 stop
Air India Logo
20:45 - 20:30
SYD
-
LHR
34h 45m1 stop
€913Air India
Tue, 17 Feb - Tue, 24 Feb
Air India Logo
13:15 - 18:00
LHR
-
SYD
43h 45m1 stop
Air India Logo
19:30 - 11:30
SYD
-
LHR
25h 00m1 stop
€920Air India
Mon, 1 Jun - Thu, 6 Aug
Air India Logo
20:35 - 18:00
LHR
-
SYD
36h 25m1 stop
Air India Logo
19:30 - 07:30
SYD
-
LHR
45h 00m1 stop
€921Air India
Mon, 1 Jun - Thu, 6 Aug
Vietnam Airlines Logo
19:50 - 08:15
LHR
-
SYD
27h 25m1 stop
Vietnam Airlines Logo
10:15 - 16:55
SYD
-
LHR
39h 40m1 stop
€930Vietnam Airlines
Tue, 26 May - Wed, 3 Jun
Vietnam Airlines Logo
18:55 - 12:15
LHR
-
SYD
32h 20m1 stop
Vietnam Airlines Logo
14:15 - 17:50
SYD
-
LHR
36h 35m1 stop
€931Vietnam Airlines
Mon, 4 May - Sat, 30 May
Austrian Airlines Logo
19:30 - 10:20
LHR
-
SYD
29h 50m2 stops
Austrian Airlines Logo
14:50 - 11:25
SYD
-
LHR
29h 35m2 stops
€934Austrian Airlines
Tue, 12 May - Tue, 19 May
China Eastern Logo
21:00 - 11:00
LHR
-
SYD
51h 00m2 stops
China Eastern Logo
21:30 - 17:30
SYD
-
LHR
31h 00m1 stop
€935China Eastern
Mon, 19 Jan - Sun, 1 Feb
China Eastern Logo
21:00 - 13:35
LHR
-
SYD
29h 35m1 stop
China Eastern Logo
21:30 - 17:30
SYD
-
LHR
31h 00m1 stop
€938China Eastern
Mon, 19 Jan - Sun, 1 Feb
China Eastern Logo
21:00 - 13:35
LHR
-
SYD
29h 35m1 stop
China Eastern Logo
21:30 - 17:30
SYD
-
LHR
31h 00m1 stop
€940China Eastern
Mon, 19 Jan - Mon, 2 Feb

Air India flights from London to Sydney

Our best Air India deals on London to Sydney flight tickets
Air India
17 Feb
LHR21:05London Heathrow
35h 10m
1 stop
SYD19:15Sydney Kingsford Smith
24 Feb
SYD20:45Sydney Kingsford Smith
33h 35m
1 stop
LHR19:20London Heathrow
€913
Find similar
Air India
17 Feb
LHR08:45London Heathrow
23h 30m
1 stop
SYD19:15Sydney Kingsford Smith
24 Feb
SYD20:45Sydney Kingsford Smith
34h 45m
1 stop
LHR20:30London Heathrow
€913
Find similar
Air India
1 Jun
LHR13:15London Heathrow
43h 45m
1 stop
SYD18:00Sydney Kingsford Smith
6 Aug
SYD19:30Sydney Kingsford Smith
25h 00m
1 stop
LHR11:30London Heathrow
€920
Find similar

Austrian Airlines flights from London to Sydney

Our best Austrian Airlines deals on London to Sydney flight tickets
Austrian Airlines
12 May
LHR19:30London Heathrow
29h 50m
2 stops
SYD10:20Sydney Kingsford Smith
19 May
SYD14:50Sydney Kingsford Smith
29h 35m
2 stops
LHR11:25London Heathrow
€934
Find similar
Austrian Airlines
5 May
LHR12:20London Heathrow
37h 00m
2 stops
SYD10:20Sydney Kingsford Smith
26 May
SYD14:50Sydney Kingsford Smith
26h 30m
2 stops
LHR08:20London Heathrow
€962
Find similar
Austrian Airlines
4 May
LHR19:30London Heathrow
29h 50m
2 stops
SYD10:20Sydney Kingsford Smith
20 May
SYD14:50Sydney Kingsford Smith
26h 30m
2 stops
LHR08:20London Heathrow
€992
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 11 December 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

Tue 17/2

21:05-19:15

1 stop35h 10m

Sydney Kingsford Smith

Tue 24/2

20:45-19:20

1 stop33h 35m

€913

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 17/2

08:45-19:15

1 stop23h 30m

Sydney Kingsford Smith

Tue 24/2

20:45-20:30

1 stop34h 45m

€913

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 1/6

13:15-18:00

1 stop43h 45m

Sydney Kingsford Smith

Thu 6/8

19:30-11:30

1 stop25h 00m

€920

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 1/6

20:35-18:00

1 stop36h 25m

Sydney Kingsford Smith

Thu 6/8

19:30-07:30

1 stop45h 00m

€921

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 26/5

19:50-08:15

1 stop27h 25m

Sydney Kingsford Smith

Wed 3/6

10:15-16:55

1 stop39h 40m

€930

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 4/5

18:55-12:15

1 stop32h 20m

Sydney Kingsford Smith

Sat 30/5

14:15-17:50

1 stop36h 35m

€931

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 12/5

19:30-10:20

2 stops29h 50m

Sydney Kingsford Smith

Tue 19/5

14:50-11:25

2 stops29h 35m

€934

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 19/1

21:00-11:00

2 stops51h 00m

Sydney Kingsford Smith

Sun 1/2

21:30-17:30

1 stop31h 00m

€935

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 19/1

21:00-13:35

1 stop29h 35m

Sydney Kingsford Smith

Sun 1/2

21:30-17:30

1 stop31h 00m

€938

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 19/1

21:00-13:35

1 stop29h 35m

Sydney Kingsford Smith

Mon 2/2

21:30-17:30

1 stop31h 00m

€940

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 June is another great option to travel to Sydney, with average flight prices from London averaging around €962.

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 €924. 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 €1,229. 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 €948 when looking at flights departing in the evening. Try not to purchase tickets in the morning because they tend to be around €1,201. 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 €1,135 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 €940 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 December 2025, prices for London to Sydney flights are approximately 12% 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

23h 05m

Direct flights

Every day

Airports in Sydney

1 airport
The fastest flight from London to Sydney takes 23h 05m
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?

    There are 16983.0 km between London and Sydney Kingsford Smith. Typically, this will take 23h 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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