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Cheap flights from London Heathrow Airport to Sydney from €570

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 Heathrow Airport 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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Find the cheapest flights from London Heathrow Airport to Sydney

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
€914Air 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
€921Air 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
€922Air India
Mon, 1 Jun - Thu, 6 Aug
Vietnam Airlines Logo
19:50 - 08:15
LHR
-
SYD
27h 25m1 stop
Vietnam Airlines Logo
10:15 - 17:50
SYD
-
LHR
40h 35m1 stop
€931Vietnam Airlines
Tue, 26 May - Mon, 8 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, 23 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
€935Austrian 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
€936China 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
€939China 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
€941China Eastern
Mon, 19 Jan - Mon, 2 Feb

Air India flights from London Heathrow Airport to Sydney

Our best Air India deals on London Heathrow Airport 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
€914
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
€921
Find similar

Austrian Airlines flights from London Heathrow Airport to Sydney

Our best Austrian Airlines deals on London Heathrow Airport 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
€935
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
€963
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 Heathrow Airport 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 10 December 2025.
Use the filters below to find and compare flights from London Heathrow Airport 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

€914

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

€921

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

€922

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 26/5

19:50-08:15

1 stop27h 25m

Sydney Kingsford Smith

Mon 8/6

10:15-17:50

1 stop40h 35m

€931

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 4/5

18:55-12:15

1 stop32h 20m

Sydney Kingsford Smith

Sat 23/5

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

€935

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

€936

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

€939

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

€941

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 Heathrow Airport 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 Heathrow Airport 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 Heathrow Airport averaging around €950.

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 Heathrow Airport. The lowest ticket price found for a Saturday departure recently was €925. 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 €1,230. 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 Heathrow Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as €949 when looking at flights departing in the evening. Try not to purchase tickets in the morning because they tend to be around €1,202. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Fly from London Heathrow to Sydney Kingsford Smith for the best London Heathrow - 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 Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around €1,137 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 Heathrow Airport for as low as €941 on momondo.

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

There is only 1 cabin class available to choose from on London Heathrow 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.

How have London Heathrow Airport to Sydney flight prices changed over time?

As of December 2025, prices for London Heathrow Airport to Sydney flights are approximately 8% cheaper when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Sydney

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

Cheap London Heathrow Airport to Sydney (LHR to SYD) flight deals and tips

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

Fastest flight time

23h 25m

Direct flights

Every day

Airports in Sydney

1 airport
The fastest flight from London Heathrow Airport to Sydney takes 23h 25m
Direct flights go from London Heathrow Airport to Sydney every day.
There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)
Search flight deals

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

    London Heathrow and Sydney Kingsford Smith are 17004.5 km apart from one another. Typically, this will take 23h 25m by plane in normal conditions.

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

    Prices for flights from London Heathrow Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport 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 Heathrow Airport 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?

It is quick and easy to find London to Sydney flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sydney that suits you.

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 all potential London to Sydney flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Sydney, momondo offers a useful price alert feature which will track prices for flights to Sydney from London and alert you when they change.

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