£399 Cheap Flights from London (LGW) to Sydney (SYD)

View £399 flight on Sun, 19 Apr 2026Opens in a new window

Popular airlines from Gatwick Airport (LGW) to Sydney Airport (SYD)

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

Prices were available within the past 7 days and start at £399 for one-way flights and £525 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Southern Airlines
Tue, 4 Nov - Mon, 10 Nov
LGW
London
SYD
Sydney
£525 Return, found 5 hours ago
£525
Return
found 5 hours ago
Select China Southern Airlines flight, departing Tue, 4 Nov from London to Sydney, returning Mon, 10 Nov, priced at £525 found 5 hours ago
China Southern Airlines
Tue, 9 Sep - Wed, 22 Oct
LGW
London
SYD
Sydney
£538 Return, found 3 hours ago
£538
Return
found 3 hours ago
Select China Southern Airlines flight, departing Tue, 9 Sep from London to Sydney, returning Wed, 22 Oct, priced at £538 found 3 hours ago
China Southern Airlines
Tue, 4 Nov - Mon, 10 Nov
LGW
London
SYD
Sydney
£544 Return, found 5 hours ago
£544
Return
found 5 hours ago
Select China Southern Airlines flight, departing Tue, 4 Nov from London to Sydney, returning Mon, 10 Nov, priced at £544 found 5 hours ago
China Eastern Airlines
Tue, 23 Sep - Mon, 13 Oct
LGW
London
SYD
Sydney
£572 Return, found 1 hour ago
£572
Return
found 1 hour ago
Select China Eastern Airlines flight, departing Tue, 23 Sep from London to Sydney, returning Mon, 13 Oct, priced at £572 found 1 hour ago
China Southern Airlines
Tue, 4 Nov - Mon, 10 Nov
LGW
London
SYD
Sydney
£576 Return, found 5 hours ago
£576
Return
found 5 hours ago
Select China Southern Airlines flight, departing Tue, 4 Nov from London to Sydney, returning Mon, 10 Nov, priced at £576 found 5 hours ago
China Southern Airlines
Mon, 22 Sep - Wed, 22 Oct
LGW
London
SYD
Sydney
£585 Return, found 23 hours ago
£585
Return
found 23 hours ago
Select China Southern Airlines flight, departing Mon, 22 Sep from London to Sydney, returning Wed, 22 Oct, priced at £585 found 23 hours ago
China Southern Airlines
Tue, 9 Sep - Wed, 22 Oct
LGW
London
SYD
Sydney
£591 Return, found 3 hours ago
£591
Return
found 3 hours ago
Select China Southern Airlines flight, departing Tue, 9 Sep from London to Sydney, returning Wed, 22 Oct, priced at £591 found 3 hours ago
Air China
Tue, 21 Apr - Tue, 28 Apr
LGW
London
SYD
Sydney
£649 Return, just found
£649
Return
just found
Select Air China flight, departing Tue, 21 Apr from London to Sydney, returning Tue, 28 Apr, priced at £649 just found
Singapore Airlines
Mon, 23 Feb - Wed, 11 Mar
LGW
London
SYD
Sydney
£890 Return, found 4 days ago
£890
Return
found 4 days ago
Select Singapore Airlines flight, departing Mon, 23 Feb from London to Sydney, returning Wed, 11 Mar, priced at £890 found 4 days ago
Swiss International Air Lines
Wed, 4 Mar - Wed, 18 Mar
LGW
London
SYD
Sydney
£931 Return, found 1 hour ago
£931
Return
found 1 hour ago
Select Swiss International Air Lines flight, departing Wed, 4 Mar from London to Sydney, returning Wed, 18 Mar, priced at £931 found 1 hour ago
Flight from London to Sydney route information
Origin airport
Gatwick
Destination airport
Kingsford Smith Intl.
Airlines serving
Air China, Air Europa, Air New Zealand, American Airlines, British Airways, China Eastern Airlines, China Southern Airlines, Delta, Emirates, Gulf Air, Qatar Airways, Singapore Airlines, Swiss International Air Lines, Turkish Airlines
Return price
£525
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 Gatwick 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 Gatwick (LGW) 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 Gatwick to Kingsford Smith Intl. start at just £525 and range up to £931.  

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 November, 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 Gatwick 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 LGW to Mascot Airport?
Round-trip flights from London Gatwick to SYD start from £525. This price is based on fares available within the last 7 days on Expedia for flights departing within the next year — book ASAP so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Gatwick Airport (LGW) to Mascot Airport?
The majority of flights can be cancelled online, but each airline has its own terms and conditions. If you do need to cancel your flight, check out our Customer Service Portal and follow the instructions.
How do I find cheap flights from LGW 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 Gatwick Airport (LGW) to Kingsford Smith Intl. Airport (SYD) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from London Gatwick to Sydney Airport?
The distance is around 17,000 kilometres. Earplugs? Check. Spare socks? Double check. You'd be wise to pack all the essentials for this long-haul Gatwick to Sydney flight.
Which airlines fly direct from Gatwick Airport (LGW) to Mascot Airport?
Unfortunately, there are no airlines that fly direct between Gatwick Airport (LGW) and Kingsford Smith Intl. Airport (SYD). You'll have to book a flight with at least one stop.
Are Gatwick Airport (LGW) to Mascot Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to pick up great last-minute deals from Gatwick Airport (LGW) to Kingsford Smith Intl. Airport (SYD), but it can also be hit-or-miss. As many airlines release prices up to a year in advance, it's worth keeping an eye on fares early and being ready to pounce when you spot a bargain. Expedia compares carrier prices and updates flight deals often, so you can rest easy knowing you're always getting the latest offers.

Explore a world of travel with Expedia

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