Cheap Flights from London (LHR) to Sydney (SYD) from HK$4,178~

View HK$4,178 flight on Fri, 21 Nov 2025Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Sydney Airport (SYD)

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Find Cheap Flights from London (LHR) to Sydney (SYD)

Prices were available within the past 7 days and start at HK$4,178 for one-way flights and HK$6,324 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Southern Airlines
Tue, 10 Mar - Tue, 17 Mar
LHR
London
SYD
Sydney
HK$6,324 Return, found 1 day ago
HK$6,324
Return
found 1 day ago
Select China Southern Airlines flight, departing Tue, 10 Mar from London to Sydney, returning Tue, 17 Mar, priced at HK$6,324 found 1 day ago
China Eastern Airlines
Sat, 1 Nov - Mon, 10 Nov
LHR
London
SYD
Sydney
HK$6,593 Return, just found
HK$6,593
Return
just found
Select China Eastern Airlines flight, departing Sat, 1 Nov from London to Sydney, returning Mon, 10 Nov, priced at HK$6,593 just found
Air China
Fri, 1 May - Thu, 21 May
LHR
London
SYD
Sydney
HK$6,842 Return, found 1 day ago
HK$6,842
Return
found 1 day ago
Select Air China flight, departing Fri, 1 May from London to Sydney, returning Thu, 21 May, priced at HK$6,842 found 1 day ago
Etihad Airways
Fri, 14 Nov - Mon, 24 Nov
LHR
London
SYD
Sydney
HK$8,869 Return, found 1 hour ago
HK$8,869
Return
found 1 hour ago
Select Etihad Airways flight, departing Fri, 14 Nov from London to Sydney, returning Mon, 24 Nov, priced at HK$8,869 found 1 hour ago
Swiss International Air Lines
Mon, 10 Nov - Mon, 24 Nov
LHR
London
SYD
Sydney
HK$9,503 Return, found 3 days ago
HK$9,503
Return
found 3 days ago
Select Swiss International Air Lines flight, departing Mon, 10 Nov from London to Sydney, returning Mon, 24 Nov, priced at HK$9,503 found 3 days ago
British Airways
Fri, 6 Mar - Sun, 29 Mar
LHR
London
SYD
Sydney
HK$9,620 Return, found 1 day ago
HK$9,620
Return
found 1 day ago
Select British Airways flight, departing Fri, 6 Mar from London to Sydney, returning Sun, 29 Mar, priced at HK$9,620 found 1 day ago
Singapore Airlines
Tue, 10 Mar - Tue, 17 Mar
LHR
London
SYD
Sydney
HK$9,626 Return, found 1 day ago
HK$9,626
Return
found 1 day ago
Select Singapore Airlines flight, departing Tue, 10 Mar from London to Sydney, returning Tue, 17 Mar, priced at HK$9,626 found 1 day ago
Austrian Airlines
Tue, 10 Mar - Tue, 17 Mar
LHR
London
SYD
Sydney
HK$9,724 Return, found 1 day ago
HK$9,724
Return
found 1 day ago
Select Austrian Airlines flight, departing Tue, 10 Mar from London to Sydney, returning Tue, 17 Mar, priced at HK$9,724 found 1 day ago
Lufthansa
Fri, 14 Nov - Mon, 24 Nov
LHR
London
SYD
Sydney
HK$9,888 Return, found 1 hour ago
HK$9,888
Return
found 1 hour ago
Select Lufthansa flight, departing Fri, 14 Nov from London to Sydney, returning Mon, 24 Nov, priced at HK$9,888 found 1 hour ago
Air India
Tue, 10 Mar - Tue, 17 Mar
LHR
London
SYD
Sydney
HK$9,978 Return, found 1 day ago
HK$9,978
Return
found 1 day ago
Select Air India flight, departing Tue, 10 Mar from London to Sydney, returning Tue, 17 Mar, priced at HK$9,978 found 1 day ago

Find the cheapest month to fly from London (LHR) to Sydney (SYD)

March is typically the cheapest month to fly

From HK$5,672 - HK$10,615 per traveller.
London to Sydney route information
Origin airport
Heathrow
Destination airport
Kingsford Smith Intl.
Airlines serving
Air Canada, Air India, American Airlines, Asiana Airlines, British Airways, Cathay Pacific, China Eastern Airlines, China Southern Airlines, Emirates, Etihad Airways, Lufthansa, Malaysia Airlines, Qantas Airways, Qatar Airways, Singapore Airlines, Swiss International Air Lines, Thai Airways International, Turkish Airlines, United, Vietnam Airlines
Return price
HK$6,324
Distance
16918 km
Average flight time
32 hours 10 mins

Flights from London to Sydney

Book cheap flights from London (LHR) to Sydney (SYD) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from London (LHR) to Sydney (SYD) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your London (LHR) to Sydney (SYD) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Sydney flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Sydney and things to do in Sydney for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Sydney more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Sydney is HK$4,178 now!

 

Frequently asked questions

How much is a flight from Heathrow Airport (LHR) to SYD?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip flight from London Heathrow to Sydney Airport was HK$6,324. Cheap tickets don't stick around for long, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Heathrow Airport to SYD?
This differs between air carriers, as each one has its own terms and conditions. Head to the Customer Service Portal, where you'll find easy instructions on how to cancel online.
How do I find cheap flights from Heathrow Airport to Kingsford Smith Intl. Airport (SYD) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for London Heathrow to SYD flights, you'll see a "no change fees" filter for you to select.
How far is the flight from LHR to Kingsford Smith Intl. Airport (SYD)?
Hounslow to Sydney is around 17,000 kilometers, so be prepared to spend quite a while in the air. Don't forget to pack all the essentials, from your hoodie to your headphones. Take a couple of snacks to munch on throughout your journey too.
Which airlines fly direct from Heathrow Airport (LHR) to SYD?
Unfortunately, there are no airlines that fly directly between London Heathrow and Kingsford Smith Intl. Airport (SYD). You'll have to book a flight with at least one stop.
Are LHR to Sydney Airport flight tickets cheaper when they're purchased at the last minute?
Flight prices change all the time, so there are no guarantees. While last-minute deals between Heathrow Airport and Sydney Airport are of course possible, it also makes sense to keep track of prices well before you fly. In fact, some carriers announce their prices up to 12 months before the departure date. Expedia is continuously updating the biggest airfare bargains around, so keep checking and be ready to pounce when the price dips.

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