฿14,640 Cheap Flights from Sydney (SYD) to London (LHR)

View ฿14,640 flight on Tue, 9 Sep 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at ฿14,640 for one-way flights and ฿35,105 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Eastern Airlines
Mon, 1 Jun - Wed, 10 Jun
SYD
Sydney
LHR
London
฿35,105 Return, found 1 day ago
฿35,105
Return
found 1 day ago
Select China Eastern Airlines flight, departing Mon, 1 Jun from Sydney to London, returning Wed, 10 Jun, priced at ฿35,105 found 1 day ago
Turkish Airlines
Sun, 12 Oct - Tue, 28 Oct
SYD
Sydney
LHR
London
฿36,190 Return, found 2 days ago
฿36,190
Return
found 2 days ago
Select Turkish Airlines flight, departing Sun, 12 Oct from Sydney to London, returning Tue, 28 Oct, priced at ฿36,190 found 2 days ago
Cathay Pacific
Mon, 1 Jun - Wed, 10 Jun
SYD
Sydney
LHR
London
฿38,845 Return, found 1 day ago
฿38,845
Return
found 1 day ago
Select Cathay Pacific flight, departing Mon, 1 Jun from Sydney to London, returning Wed, 10 Jun, priced at ฿38,845 found 1 day ago
Asiana Airlines
Tue, 7 Oct - Tue, 21 Oct
SYD
Sydney
LHR
London
฿39,520 Return, found 2 days ago
฿39,520
Return
found 2 days ago
Select Asiana Airlines flight, departing Tue, 7 Oct from Sydney to London, returning Tue, 21 Oct, priced at ฿39,520 found 2 days ago
Air India
Mon, 1 Jun - Wed, 10 Jun
SYD
Sydney
LHR
London
฿39,785 Return, found 1 day ago
฿39,785
Return
found 1 day ago
Select Air India flight, departing Mon, 1 Jun from Sydney to London, returning Wed, 10 Jun, priced at ฿39,785 found 1 day ago
SriLankan Airlines
Mon, 13 Oct - Sun, 26 Oct
SYD
Sydney
LHR
London
฿40,000 Return, found 1 day ago
฿40,000
Return
found 1 day ago
Select SriLankan Airlines flight, departing Mon, 13 Oct from Sydney to London, returning Sun, 26 Oct, priced at ฿40,000 found 1 day ago
Etihad Airways
Mon, 13 Oct - Sun, 26 Oct
SYD
Sydney
LHR
London
฿40,205 Return, found 1 day ago
฿40,205
Return
found 1 day ago
Select Etihad Airways flight, departing Mon, 13 Oct from Sydney to London, returning Sun, 26 Oct, priced at ฿40,205 found 1 day ago
China Airlines
Mon, 1 Jun - Wed, 10 Jun
SYD
Sydney
LHR
London
฿40,645 Return, found 1 day ago
฿40,645
Return
found 1 day ago
Select China Airlines flight, departing Mon, 1 Jun from Sydney to London, returning Wed, 10 Jun, priced at ฿40,645 found 1 day ago
Vietnam Airlines
Sun, 12 Oct - Tue, 28 Oct
SYD
Sydney
LHR
London
฿41,505 Return, found 2 days ago
฿41,505
Return
found 2 days ago
Select Vietnam Airlines flight, departing Sun, 12 Oct from Sydney to London, returning Tue, 28 Oct, priced at ฿41,505 found 2 days ago
Air China
Thu, 9 Oct - Thu, 23 Oct
SYD
Sydney
LHR
London
฿42,185 Return, found 4 days ago
฿42,185
Return
found 4 days ago
Select Air China flight, departing Thu, 9 Oct from Sydney to London, returning Thu, 23 Oct, priced at ฿42,185 found 4 days ago

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

November is typically the cheapest month to fly

From ฿27,304 - ฿37,214 per traveller.

Graph displaying average flight prices per month

Flight from Sydney to London route information
Origin airport
Kingsford Smith Intl.
Destination airport
Heathrow
Airlines serving
Air Canada, Air India, All Nippon Airways, American Airlines, Asiana Airlines, Austrian Airlines, British Airways, Cathay Pacific, Emirates, Etihad Airways, KLM, Lufthansa, Malaysia Airlines, Qantas Airways, Qatar Airways, Singapore Airlines, SriLankan Airlines, Thai Airways International, Turkish Airlines, United
Return price
฿35,105
Distance
16918 km
Average flight time
15 hours 15 mins

Perfect flights from Sydney to London

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Sydney to London. 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 London, 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 Kingsford Smith Intl. to Heathrow ticket options cater to your travel preferences, with incredible one-way fares from ฿14,640 and roundtrip prices from ฿35,105. 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 Heathrow and explore London 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 SYD to LHR travel arrangements today and embark on the journey of a lifetime in London.

Frequently asked questions

How much is a flight from Mascot Airport to London Heathrow?
Round-trip journeys from SYD to LHR start from ฿35,105. This figure is based on fares listed within the last 7 days on Expedia for flights departing within the next year — make your booking 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 Sydney Airport to Heathrow Airport?
Each airline has a different set of terms and conditions. If you decide to cancel your escape, visit our Customer Service Portal.
How do I find cheap flights from Kingsford Smith Intl. Airport (SYD) to Heathrow 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 Mascot Airport to LHR flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Mascot Airport to Heathrow Airport (LHR)?
With around 17,000 kilometres separating Sydney and Hounslow, your flight will be a long one. Pack wisely and make your time in the air comfortable. Simple things like a sleep mask and a good travel pillow can make the biggest difference.
Which airlines fly direct from Sydney Airport to LHR?
There are no direct flights, so you'll need to make at least one stop between SYD and Heathrow Airport (LHR). Use the layover time to stretch your legs and take a break.
Are Sydney Airport to LHR flight tickets cheaper when they're purchased at the last minute?
Tickets from Kingsford Smith Intl. Airport (SYD) to Heathrow Airport (LHR) are available up to 12 months prior to departure on Expedia. And although you may occasionally nab a fantastic last-minute deal, it's never something you can count on. Also, booking your flights well in advance means you'll have more choices — and you can avoid ending up with the dreaded middle seat! We frequently update our fares to bring you the best bargains, so check back often for all the latest specials.

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