฿16,240 Cheap Flights from London (LHR) to Sydney (SYD)

View ฿16,240 flight on Wed, 11 Mar 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at ฿16,240 for one-way flights and ฿27,055 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Southern Airlines
Wed, 28 Jan - Thu, 5 Feb
LHR
London
SYD
Sydney
฿27,055 Return, found 4 hours ago
฿27,055
Return
found 4 hours ago
Select China Southern Airlines flight, departing Wed, 28 Jan from London to Sydney, returning Thu, 5 Feb, priced at ฿27,055 found 4 hours ago
China Eastern Airlines
Tue, 3 Mar - Tue, 24 Mar
LHR
London
SYD
Sydney
฿28,690 Return, found 4 days ago
฿28,690
Return
found 4 days ago
Select China Eastern Airlines flight, departing Tue, 3 Mar from London to Sydney, returning Tue, 24 Mar, priced at ฿28,690 found 4 days ago
Air India
Sun, 16 Aug - Sun, 18 Oct
LHR
London
SYD
Sydney
฿34,335 Return, found 1 day ago
฿34,335
Return
found 1 day ago
Select Air India flight, departing Sun, 16 Aug from London to Sydney, returning Sun, 18 Oct, priced at ฿34,335 found 1 day ago
Etihad Airways
Tue, 24 Feb - Wed, 4 Mar
LHR
London
SYD
Sydney
฿35,005 Return, found 2 hours ago
฿35,005
Return
found 2 hours ago
Select Etihad Airways flight, departing Tue, 24 Feb from London to Sydney, returning Wed, 4 Mar, priced at ฿35,005 found 2 hours ago
Cathay Pacific
Tue, 3 Mar - Tue, 24 Mar
LHR
London
SYD
Sydney
฿36,260 Return, found 4 days ago
฿36,260
Return
found 4 days ago
Select Cathay Pacific flight, departing Tue, 3 Mar from London to Sydney, returning Tue, 24 Mar, priced at ฿36,260 found 4 days ago
SriLankan Airlines
Sun, 1 Mar - Sun, 8 Mar
LHR
London
SYD
Sydney
฿37,915 Return, found 6 days ago
฿37,915
Return
found 6 days ago
Select SriLankan Airlines flight, departing Sun, 1 Mar from London to Sydney, returning Sun, 8 Mar, priced at ฿37,915 found 6 days ago
Qantas Airways
Mon, 2 Mar - Tue, 17 Mar
LHR
London
SYD
Sydney
฿37,970 Return, found 4 days ago
฿37,970
Return
found 4 days ago
Select Qantas Airways flight, departing Mon, 2 Mar from London to Sydney, returning Tue, 17 Mar, priced at ฿37,970 found 4 days ago
Air China
Sun, 1 Mar - Sun, 15 Mar
LHR
London
SYD
Sydney
฿39,205 Return, found 4 days ago
฿39,205
Return
found 4 days ago
Select Air China flight, departing Sun, 1 Mar from London to Sydney, returning Sun, 15 Mar, priced at ฿39,205 found 4 days ago
Swiss International Air Lines
Tue, 1 Sept - Tue, 22 Sept
LHR
London
SYD
Sydney
฿39,275 Return, found 4 days ago
฿39,275
Return
found 4 days ago
Select Swiss International Air Lines flight, departing Tue, 1 Sept from London to Sydney, returning Tue, 22 Sept, priced at ฿39,275 found 4 days ago
British Airways
Tue, 3 Mar - Tue, 24 Mar
LHR
London
SYD
Sydney
฿39,830 Return, found 4 days ago
฿39,830
Return
found 4 days ago
Select British Airways flight, departing Tue, 3 Mar from London to Sydney, returning Tue, 24 Mar, priced at ฿39,830 found 4 days ago

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

March is typically the cheapest month to fly

From ฿23,266 - ฿40,259 per traveller.
Flight from London to Sydney route information
Origin airport
Heathrow
Destination airport
Kingsford Smith Intl.
Airlines serving
Air Canada, Air China, Air India, All Nippon Airways, American Airlines, Austrian Airlines, British Airways, Cathay Pacific, China Eastern Airlines, China Southern Airlines, Etihad Airways, Japan Airlines, Lufthansa, Qantas Airways, Qatar Airways, Singapore Airlines, SriLankan Airlines, Swiss International Air Lines, Thai Airways International, United
Return price
฿27,055
Distance
16918 km
Average flight time
34 hours 10 mins

Perfect flights from London to Sydney

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from London to Sydney. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Heathrow to Kingsford Smith Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿16,240 and roundtrip prices from ฿27,055. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Kingsford Smith Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Sydney.

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 ฿27,055. 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 kilometres, 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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