฿19,220 Cheap Flights from London (LHR) to Sydney (SYD)

View ฿19,220 flight on Thu, 4 Dec 2025Opens in a new window

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

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at ฿19,220 for one-way flights and ฿33,360 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Southern Airlines
Wed, 22 Oct - Tue, 28 Oct
LHR
London
SYD
Sydney
฿33,360 Return, found 1 day ago
฿33,360
Return
found 1 day ago
Select China Southern Airlines flight, departing Wed, 22 Oct from London to Sydney, returning Tue, 28 Oct, priced at ฿33,360 found 1 day ago
Air China
Thu, 16 Apr - Tue, 21 Apr
LHR
London
SYD
Sydney
฿36,890 Return, found 5 days ago
฿36,890
Return
found 5 days ago
Select Air China flight, departing Thu, 16 Apr from London to Sydney, returning Tue, 21 Apr, priced at ฿36,890 found 5 days ago
Air India
Mon, 3 Nov - Sun, 16 Nov
LHR
London
SYD
Sydney
฿36,915 Return, found 3 days ago
฿36,915
Return
found 3 days ago
Select Air India flight, departing Mon, 3 Nov from London to Sydney, returning Sun, 16 Nov, priced at ฿36,915 found 3 days ago
China Airlines
Mon, 3 Nov - Sun, 16 Nov
LHR
London
SYD
Sydney
฿39,160 Return, found 3 days ago
฿39,160
Return
found 3 days ago
Select China Airlines flight, departing Mon, 3 Nov from London to Sydney, returning Sun, 16 Nov, priced at ฿39,160 found 3 days ago
Etihad Airways
Mon, 3 Nov - Sun, 16 Nov
LHR
London
SYD
Sydney
฿40,825 Return, found 3 days ago
฿40,825
Return
found 3 days ago
Select Etihad Airways flight, departing Mon, 3 Nov from London to Sydney, returning Sun, 16 Nov, priced at ฿40,825 found 3 days ago
Cathay Pacific
Mon, 3 Nov - Sun, 16 Nov
LHR
London
SYD
Sydney
฿41,470 Return, found 3 days ago
฿41,470
Return
found 3 days ago
Select Cathay Pacific flight, departing Mon, 3 Nov from London to Sydney, returning Sun, 16 Nov, priced at ฿41,470 found 3 days ago
United
Mon, 3 Nov - Sun, 16 Nov
LHR
London
SYD
Sydney
฿41,985 Return, found 3 days ago
฿41,985
Return
found 3 days ago
Select United flight, departing Mon, 3 Nov from London to Sydney, returning Sun, 16 Nov, priced at ฿41,985 found 3 days ago
American Airlines
Mon, 3 Nov - Sun, 16 Nov
LHR
London
SYD
Sydney
฿42,040 Return, found 3 days ago
฿42,040
Return
found 3 days ago
Select American Airlines flight, departing Mon, 3 Nov from London to Sydney, returning Sun, 16 Nov, priced at ฿42,040 found 3 days ago
Qatar Airways
Sat, 21 Feb - Sat, 7 Mar
LHR
London
SYD
Sydney
฿44,205 Return, found 4 days ago
฿44,205
Return
found 4 days ago
Select Qatar Airways flight, departing Sat, 21 Feb from London to Sydney, returning Sat, 7 Mar, priced at ฿44,205 found 4 days ago
Turkish Airlines
Mon, 3 Nov - Sun, 16 Nov
LHR
London
SYD
Sydney
฿45,365 Return, found 3 days ago
฿45,365
Return
found 3 days ago
Select Turkish Airlines flight, departing Mon, 3 Nov from London to Sydney, returning Sun, 16 Nov, priced at ฿45,365 found 3 days ago

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

March is typically the cheapest month to fly

From ฿23,585 - ฿42,090 per traveller.
Flight from 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 Airlines, China Eastern Airlines, China Southern Airlines, Emirates, Etihad Airways, Gulf Air, Japan Airlines, KLM, Lufthansa, Qantas Airways, Qatar Airways, Singapore Airlines, Thai Airways International, Turkish Airlines
Return price
฿33,360
Distance
16918 km
Average flight time
33 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 ฿19,220 and roundtrip prices from ฿33,360. 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 ฿33,360. 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.

Explore a world of travel with Expedia

London Airports

London

*Available to Expedia members.