Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from London Heathrow Airport to Sydney from €616

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 17/3. 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
Voted the Winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London Heathrow Airport to Sydney

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
17:15 - 20:20LHR-SYD
40h 05m2 stops
Multiple Airlines Logo
21:00 - 17:55SYD-LHR
31h 55m1 stop
€819Multiple Airlines
Find Deal
Sun, 9 Nov - Sat, 15 Nov
Multiple Airlines Logo
21:15 - 14:55LHR-SYD
30h 40m1 stop
Multiple Airlines Logo
06:00 - 17:55SYD-LHR
46h 55m3 stops
€830Multiple Airlines
Find Deal
Sun, 9 Nov - Sun, 16 Nov
China Southern Logo
22:00 - 20:20LHR-SYD
35h 20m1 stop
China Southern Logo
09:20 - 14:00SYD-LHR
63h 40m2 stops
€833China Southern
Find Deal
Mon, 10 Nov - Mon, 17 Nov
Air China Logo
20:25 - 15:30LHR-SYD
32h 05m1 stop
Air China Logo
20:40 - 15:55SYD-LHR
30h 15m1 stop
€838Air China
Find Deal
Tue, 11 Nov - Tue, 18 Nov
China Southern Logo
21:30 - 20:20LHR-SYD
59h 50m2 stops
China Southern Logo
09:20 - 18:35SYD-LHR
68h 15m2 stops
€839China Southern
Find Deal
Fri, 7 Nov - Sat, 15 Nov
China Southern Logo
22:00 - 20:20LHR-SYD
35h 20m1 stop
China Southern Logo
09:20 - 14:00SYD-LHR
39h 40m2 stops
€858China Southern
Find Deal
Sun, 9 Nov - Sat, 22 Nov
China Southern Logo
22:00 - 20:20LHR-SYD
35h 20m1 stop
China Southern Logo
22:10 - 18:35SYD-LHR
31h 25m1 stop
€861China Southern
Find Deal
Thu, 20 Nov - Thu, 11 Dec
China Eastern Logo
21:00 - 13:35LHR-SYD
29h 35m1 stop
China Eastern Logo
21:30 - 17:30SYD-LHR
31h 00m1 stop
€920China Eastern
Find Deal
Mon, 10 Nov - Mon, 17 Nov
Etihad Airways Logo
08:50 - 17:55LHR-SYD
22h 05m1 stop
Etihad Airways Logo
21:30 - 12:05SYD-LHR
25h 35m1 stop
€964Etihad Airways
Find Deal
Thu, 27 Nov - Fri, 5 Dec
Etihad Airways Logo
08:50 - 06:35LHR-SYD
34h 45m1 stop
Etihad Airways Logo
21:30 - 14:30SYD-LHR
28h 00m1 stop
€965Etihad Airways
Find Deal
Mon, 10 Nov - Fri, 21 Nov

China Southern flights from London Heathrow Airport to Sydney

Our best China Southern deals on London Heathrow Airport to Sydney flight tickets
China Southern
10 Nov
LHR22:00London Heathrow
35h 20m
1 stop
SYD20:20Sydney Kingsford Smith
17 Nov
SYD09:20Sydney Kingsford Smith
63h 40m
2 stops
LHR14:00London Heathrow
€833
Find similar
China Southern
7 Nov
LHR21:30London Heathrow
59h 50m
2 stops
SYD20:20Sydney Kingsford Smith
15 Nov
SYD09:20Sydney Kingsford Smith
68h 15m
2 stops
LHR18:35London Heathrow
€839
Find similar
China Southern
9 Nov
LHR22:00London Heathrow
35h 20m
1 stop
SYD20:20Sydney Kingsford Smith
22 Nov
SYD09:20Sydney Kingsford Smith
39h 40m
2 stops
LHR14:00London Heathrow
€858
Find similar

Etihad Airways flights from London Heathrow Airport to Sydney

Our best Etihad Airways deals on London Heathrow Airport to Sydney flight tickets
Etihad Airways
27 Nov
LHR08:50London Heathrow
22h 05m
1 stop
SYD17:55Sydney Kingsford Smith
5 Dec
SYD21:30Sydney Kingsford Smith
25h 35m
1 stop
LHR12:05London Heathrow
€964
Find similar
Etihad Airways
10 Nov
LHR08:50London Heathrow
34h 45m
1 stop
SYD06:35Sydney Kingsford Smith
21 Nov
SYD21:30Sydney Kingsford Smith
28h 00m
1 stop
LHR14:30London Heathrow
€965
Find similar
Etihad Airways
18 Feb
LHR08:50London Heathrow
34h 45m
1 stop
SYD06:35Sydney Kingsford Smith
27 Feb
SYD16:35Sydney Kingsford Smith
25h 05m
1 stop
LHR06:40London Heathrow
€968
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 26 October 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

Sun 9/11

17:15-20:20

2 stops40h 05m

Sydney Kingsford Smith

Sat 15/11

21:00-17:55

1 stop31h 55m

€819

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 9/11

21:15-14:55

1 stop30h 40m

Sydney Kingsford Smith

Sun 16/11

06:00-17:55

3 stops46h 55m

€830

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 10/11

22:00-20:20

1 stop35h 20m

Sydney Kingsford Smith

Mon 17/11

09:20-14:00

2 stops63h 40m

€833

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 11/11

20:25-15:30

1 stop32h 05m

Sydney Kingsford Smith

Tue 18/11

20:40-15:55

1 stop30h 15m

€838

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 7/11

21:30-20:20

2 stops59h 50m

Sydney Kingsford Smith

Sat 15/11

09:20-18:35

2 stops68h 15m

€839

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 9/11

22:00-20:20

1 stop35h 20m

Sydney Kingsford Smith

Sat 22/11

09:20-14:00

2 stops39h 40m

€858

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 20/11

22:00-20:20

1 stop35h 20m

Sydney Kingsford Smith

Thu 11/12

22:10-18:35

1 stop31h 25m

€861

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 10/11

21:00-13:35

1 stop29h 35m

Sydney Kingsford Smith

Mon 17/11

21:30-17:30

1 stop31h 00m

€920

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 27/11

08:50-17:55

1 stop22h 05m

Sydney Kingsford Smith

Fri 5/12

21:30-12:05

1 stop25h 35m

€964

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 10/11

08:50-06:35

1 stop34h 45m

Sydney Kingsford Smith

Fri 21/11

21:30-14:30

1 stop28h 00m

€965

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 May is another great option to travel to Sydney, with average flight prices from London Heathrow Airport averaging around €919.

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 €926. 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 €1,231. 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 €950 when looking at flights departing in the evening. Try not to purchase tickets in the morning because they tend to be around €1,203. 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 €1,147 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 €978 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 October 2025, prices for London Heathrow Airport to Sydney flights are approximately 14% 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

Mon, Tue, Wed and Sun

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 on Monday, Tuesday, Wednesday and Sunday. There are no airlines offering direct flights..
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 22h 05m 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.

An easier way to manage your Sydney trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 25/11
Tue 2/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia

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
TAP AIR PORTUGAL