£382 Cheap Flights from London (LON) to Sydney (SYD)

View £382 flight on Tue, 21 Oct 2025Opens in a new window

Popular airlines from London to Sydney, NSW (SYD-Kingsford Smith Intl.)

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Cheap Flights from London (LON) to Sydney (SYD)

Prices were available within the past 7 days and start at £382 for one-way flights and £520 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Southern Airlines
Tue, 9 Sep - Wed, 22 Oct
LGW
London
SYD
Sydney
£520 Return, found 8 hours ago
£520
Return
found 8 hours ago
Select China Southern Airlines flight, departing Tue, 9 Sep from London to Sydney, returning Wed, 22 Oct, priced at £520 found 8 hours ago
China Southern Airlines
Sun, 2 Nov - Tue, 11 Nov
LHR
London
SYD
Sydney
£552 Return, found 3 hours ago
£552
Return
found 3 hours ago
Select China Southern Airlines flight, departing Sun, 2 Nov from London to Sydney, returning Tue, 11 Nov, priced at £552 found 3 hours ago
China Eastern Airlines
Thu, 4 Sep - Wed, 22 Oct
LGW
London
SYD
Sydney
£570 Return, found 8 hours ago
£570
Return
found 8 hours ago
Select China Eastern Airlines flight, departing Thu, 4 Sep from London to Sydney, returning Wed, 22 Oct, priced at £570 found 8 hours ago
Air China
Sun, 16 Nov - Sun, 8 Feb
LHR
London
SYD
Sydney
£602 Return, found 4 days ago
£602
Return
found 4 days ago
Select Air China flight, departing Sun, 16 Nov from London to Sydney, returning Sun, 8 Feb, priced at £602 found 4 days ago
Vietnam Airlines
Thu, 7 May - Wed, 13 May
LHR
London
SYD
Sydney
£778 Return, found 5 days ago
£778
Return
found 5 days ago
Select Vietnam Airlines flight, departing Thu, 7 May from London to Sydney, returning Wed, 13 May, priced at £778 found 5 days ago
Lufthansa
Tue, 10 Mar - Mon, 16 Mar
LHR
London
SYD
Sydney
£812 Return, found 4 days ago
£812
Return
found 4 days ago
Select Lufthansa flight, departing Tue, 10 Mar from London to Sydney, returning Mon, 16 Mar, priced at £812 found 4 days ago
Swiss International Air Lines
Tue, 4 Nov - Thu, 6 Nov
LCY
London
SYD
Sydney
£814 Return, found 4 days ago
£814
Return
found 4 days ago
Select Swiss International Air Lines flight, departing Tue, 4 Nov from London to Sydney, returning Thu, 6 Nov, priced at £814 found 4 days ago
Cathay Pacific
Mon, 15 Sep - Mon, 3 Nov
LHR
London
SYD
Sydney
£850 Return, just found
£850
Return
just found
Select Cathay Pacific flight, departing Mon, 15 Sep from London to Sydney, returning Mon, 3 Nov, priced at £850 just found
Malaysia Airlines
Wed, 24 Sep - Sat, 25 Oct
LHR
London
SYD
Sydney
£865 Return, found 5 days ago
£865
Return
found 5 days ago
Select Malaysia Airlines flight, departing Wed, 24 Sep from London to Sydney, returning Sat, 25 Oct, priced at £865 found 5 days ago
China Airlines
Fri, 31 Oct - Sun, 16 Nov
LHR
London
SYD
Sydney
£868 Return, found 1 day ago
£868
Return
found 1 day ago
Select China Airlines flight, departing Fri, 31 Oct from London to Sydney, returning Sun, 16 Nov, priced at £868 found 1 day ago

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

March is typically the cheapest month to fly

From £544 - £1,040 per traveller.

Graph displaying average flight prices per month

Flight from London to Sydney route information
Origin airport
Gatwick
Destination airport
Kingsford Smith Intl.
Airlines serving
Air Canada, Air China, Air France, Air India, Asiana Airlines, British Airways, Cathay Pacific, China Eastern Airlines, China Southern Airlines, Emirates, Etihad Airways, KLM, Korean Air, Malaysia Airlines, Qantas Airways, Qatar Airways, Singapore Airlines, Thai Airways International, Turkish Airlines, Vietnam Airlines
Return price
£520
Distance
16918 km

Compare flights from London to Sydney easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from London to Sydney. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Kingsford Smith Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from LON-All Airports to Kingsford Smith Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from LON-All Airports (LON) to Kingsford Smith Intl. (SYD)

The easiest way to view the best deals on flights from London to Sydney today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from LON-All Airports to Kingsford Smith Intl. start at just £520 and range up to £868.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near London and Sydney
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your London to Sydney flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from LON-All Airports to Kingsford Smith Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from London (LON-All Airports) to Mascot Airport?
Pack your bags, because round-trip flights between London (LON-All Airports) and Kingsford Smith Intl. Airport (SYD) start from £520. That's based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can move quickly, so book today to score the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from London (LON-All Airports) to SYD?
Every air carrier has its own terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from London (LON-All Airports) to Mascot Airport 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 (LON-All Airports) to Mascot Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from London (LON-All Airports) to Kingsford Smith Intl. Airport (SYD)?
With a flight distance of 17,000 kilometres from London (LON-All Airports) to Kingsford Smith Intl. Airport (SYD), this is a long journey. Make sure you drink plenty of water and move around the cabin from time to time.
Which airlines fly direct from London (LON-All Airports) to Kingsford Smith Intl. Airport (SYD)?
At present, no airlines offer direct flights from London (LON-All Airports) to Kingsford Smith Intl. Airport (SYD). You'll need to book a flight with one or more stops. To get the best connections and price, lock in your airfare ahead of time.
Are London (LON-All Airports) to Kingsford Smith Intl. Airport (SYD) flight tickets cheaper when they're purchased at the last minute?
It is possible to find a fantastic last-minute deal from London (LON-All Airports) to SYD, but there's no guarantee. As many airlines advertise prices up to a year in advance, it's worth keeping an eye on fares early and being ready to pounce when you see a good bargain. Expedia compares air carrier prices and updates flight deals all the time, so you can be certain you're always seeing the latest offers.

Explore a world of travel with Expedia

London Airports

London

Gatwick to Sydney
£519.68
Heathrow to Sydney
£551.02
Stansted to Sydney
£997.86

Southampton

Southampton to Sydney
£1,013.14
*Available to Expedia members.