S$343 Cheap Flights from Sydney to London

View S$343 flight on Thu, 5 Feb, 2026Opens in a new window

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

  • 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 Sydney to London (SYD-LHR)

Prices were available within the past 7 days and start at S$343 for one-way flights and S$848 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Southern Airlines
Mon, 16 Feb - Mon, 2 Mar
SYD
Sydney
LHR
London
S$848 Return, found 19 hours ago
S$848
Return
found 19 hours ago
Select China Southern Airlines flight, departing Mon, 16 Feb from Sydney to London, returning Mon, 2 Mar, priced at S$848 found 19 hours ago
Air China
Mon, 9 Feb - Wed, 25 Feb
SYD
Sydney
LHR
London
S$869 Return, found 2 days ago
S$869
Return
found 2 days ago
Select Air China flight, departing Mon, 9 Feb from Sydney to London, returning Wed, 25 Feb, priced at S$869 found 2 days ago
China Eastern Airlines
Mon, 11 May - Sat, 16 May
SYD
Sydney
LHR
London
S$1,113 Return, found 5 hours ago
S$1,113
Return
found 5 hours ago
Select China Eastern Airlines flight, departing Mon, 11 May from Sydney to London, returning Sat, 16 May, priced at S$1,113 found 5 hours ago
Turkish Airlines
Sun, 22 Feb - Thu, 12 Mar
SYD
Sydney
LHR
London
S$1,269 Return, found 2 days ago
S$1,269
Return
found 2 days ago
Select Turkish Airlines flight, departing Sun, 22 Feb from Sydney to London, returning Thu, 12 Mar, priced at S$1,269 found 2 days ago
Hainan Airlines
Tue, 17 Feb - Mon, 2 Mar
SYD
Sydney
LHR
London
S$1,283 Return, found 2 days ago
S$1,283
Return
found 2 days ago
Select Hainan Airlines flight, departing Tue, 17 Feb from Sydney to London, returning Mon, 2 Mar, priced at S$1,283 found 2 days ago
Etihad Airways
Mon, 2 Mar - Mon, 16 Mar
SYD
Sydney
LHR
London
S$1,367 Return, found 2 days ago
S$1,367
Return
found 2 days ago
Select Etihad Airways flight, departing Mon, 2 Mar from Sydney to London, returning Mon, 16 Mar, priced at S$1,367 found 2 days ago
Japan Airlines
Mon, 8 Jun - Mon, 15 Jun
SYD
Sydney
LHR
London
S$1,432 Return, found 1 day ago
S$1,432
Return
found 1 day ago
Select Japan Airlines flight, departing Mon, 8 Jun from Sydney to London, returning Mon, 15 Jun, priced at S$1,432 found 1 day ago
Vietnam Airlines
Sat, 30 May - Tue, 9 Jun
SYD
Sydney
LHR
London
S$1,438 Return, found 2 days ago
S$1,438
Return
found 2 days ago
Select Vietnam Airlines flight, departing Sat, 30 May from Sydney to London, returning Tue, 9 Jun, priced at S$1,438 found 2 days ago
Asiana Airlines
Thu, 7 May - Thu, 21 May
SYD
Sydney
LHR
London
S$1,507 Return, found 2 days ago
S$1,507
Return
found 2 days ago
Select Asiana Airlines flight, departing Thu, 7 May from Sydney to London, returning Thu, 21 May, priced at S$1,507 found 2 days ago
Singapore Airlines
Mon, 11 May - Sat, 16 May
SYD
Sydney
LHR
London
S$1,519 Return, found 5 hours ago
S$1,519
Return
found 5 hours ago
Select Singapore Airlines flight, departing Mon, 11 May from Sydney to London, returning Sat, 16 May, priced at S$1,519 found 5 hours ago

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

May is typically the cheapest month to fly

From S$1,088 - S$1,468 per traveller.
Sydney to London route information
Origin airport
Kingsford Smith Intl.
Destination airport
Heathrow
Airlines serving
Air Canada, Air France, Air India, All Nippon Airways, American Airlines, Asiana Airlines, British Airways, Cathay Pacific, China Southern Airlines, Emirates, Etihad Airways, Gulf Air, KLM, Malaysia Airlines, Qantas Airways, Qatar Airways, Singapore Airlines, Turkish Airlines, United, Vietnam Airlines
Return price
S$847
Distance
16918 km
Average flight time
13 hours 42 mins

Perfect flights from Sydney to London

Your Journey from Sydney to London

Start your unforgettable journey with Expedia. Our broad selection of flights from Sydney to London caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Hainan Airlines, China Eastern Airlines, Air China, China Southern Airlines, Etihad Airways, Singapore Airlines, Vietnam Airlines, Malaysia Airlines, Lufthansa, Turkish Airlines, Japan Airlines, Asiana Airlines. Our selection of flights from Kingsford Smith Intl. to Heathrow caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Sydney to London Flights

Experience the joy of finding cheap flights from Kingsford Smith Intl. to Heathrow that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$343 and roundtrip prices from S$848*.
 

Pre-Flight Essentials

Ensure a smooth journey from Sydney to London with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant London

Picture yourself stepping off the plane in London and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Sydney to London Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Sydney to London.
 

Beyond the Flight – Exploring London

With Expedia, your adventure extends beyond the flight. Explore London at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Sydney to London with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Sydney to London with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from Mascot Airport to London Heathrow?
Round-trip journeys from SYD to LHR start from S$848. 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.

Explore a world of travel with Expedia

*Available to Expedia members.