฿17,535 Cheap Flights from London (LHR) to Sydney (SYD)

View ฿17,535 flight on Sun, 28 Dec 2025Opens 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 ฿17,535 for one-way flights and ฿22,445 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Southern Airlines
Mon, 10 Nov - Mon, 17 Nov
LHR
London
SYD
Sydney
฿22,445 Return, found 14 hours ago
฿22,445
Return
found 14 hours ago
Select China Southern Airlines flight, departing Mon, 10 Nov from London to Sydney, returning Mon, 17 Nov, priced at ฿22,445 found 14 hours ago
China Eastern Airlines
Mon, 10 Nov - Mon, 17 Nov
LHR
London
SYD
Sydney
฿28,740 Return, found 14 hours ago
฿28,740
Return
found 14 hours ago
Select China Eastern Airlines flight, departing Mon, 10 Nov from London to Sydney, returning Mon, 17 Nov, priced at ฿28,740 found 14 hours ago
Cathay Pacific
Mon, 10 Nov - Mon, 17 Nov
LHR
London
SYD
Sydney
฿37,180 Return, found 14 hours ago
฿37,180
Return
found 14 hours ago
Select Cathay Pacific flight, departing Mon, 10 Nov from London to Sydney, returning Mon, 17 Nov, priced at ฿37,180 found 14 hours ago
Austrian Airlines
Mon, 10 Nov - Mon, 17 Nov
LHR
London
SYD
Sydney
฿39,820 Return, found 14 hours ago
฿39,820
Return
found 14 hours ago
Select Austrian Airlines flight, departing Mon, 10 Nov from London to Sydney, returning Mon, 17 Nov, priced at ฿39,820 found 14 hours ago
Lufthansa
Thu, 6 Nov - Wed, 12 Nov
LHR
London
SYD
Sydney
฿39,965 Return, found 4 days ago
฿39,965
Return
found 4 days ago
Select Lufthansa flight, departing Thu, 6 Nov from London to Sydney, returning Wed, 12 Nov, priced at ฿39,965 found 4 days ago
Etihad Airways
Mon, 10 Nov - Mon, 17 Nov
LHR
London
SYD
Sydney
฿41,065 Return, found 14 hours ago
฿41,065
Return
found 14 hours ago
Select Etihad Airways flight, departing Mon, 10 Nov from London to Sydney, returning Mon, 17 Nov, priced at ฿41,065 found 14 hours ago
Swiss International Air Lines
Thu, 6 Nov - Wed, 12 Nov
LHR
London
SYD
Sydney
฿41,865 Return, found 4 days ago
฿41,865
Return
found 4 days ago
Select Swiss International Air Lines flight, departing Thu, 6 Nov from London to Sydney, returning Wed, 12 Nov, priced at ฿41,865 found 4 days ago
China Airlines
Mon, 10 Nov - Mon, 17 Nov
LHR
London
SYD
Sydney
฿41,880 Return, found 14 hours ago
฿41,880
Return
found 14 hours ago
Select China Airlines flight, departing Mon, 10 Nov from London to Sydney, returning Mon, 17 Nov, priced at ฿41,880 found 14 hours ago
United
Fri, 26 Sep - Sun, 5 Oct
LHR
London
SYD
Sydney
฿42,115 Return, found 3 hours ago
฿42,115
Return
found 3 hours ago
Select United flight, departing Fri, 26 Sep from London to Sydney, returning Sun, 5 Oct, priced at ฿42,115 found 3 hours ago
American Airlines
Mon, 10 Nov - Mon, 17 Nov
LHR
London
SYD
Sydney
฿42,195 Return, found 14 hours ago
฿42,195
Return
found 14 hours ago
Select American Airlines flight, departing Mon, 10 Nov from London to Sydney, returning Mon, 17 Nov, priced at ฿42,195 found 14 hours ago

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

March is typically the cheapest month to fly

From ฿23,677 - ฿45,547 per traveller.

Graph displaying average flight prices per month

Flight from London to Sydney route information
Origin airport
Heathrow
Destination airport
Kingsford Smith Intl.
Airlines serving
Air Canada, Air India, All Nippon Airways, American Airlines, British Airways, Cathay Pacific, China Eastern Airlines, China Southern Airlines, Delta, Etihad Airways, Gulf Air, KLM, Korean Air, Lufthansa, Malaysia Airlines, Qantas Airways, Qatar Airways, Thai Airways International, Turkish Airlines, United
Return price
฿22,445
Distance
16918 km
Average flight time
32 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 Sydney, 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 ฿17,535 and roundtrip prices from ฿22,445. 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 Sydney 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 LHR to SYD 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 ฿22,445. 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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