£348 Cheap Flights from Sydney (SYD) to London (LHR)

View £348 flight on Tue, 27 Oct 2026Opens 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 £348 for one-way flights and £710 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Etihad Airways
Wed, 21 Oct - Sun, 8 Nov
SYD
Sydney
LHR
London
£710 Return, found 4 days ago
£710
Return
found 4 days ago
Select Etihad Airways flight, departing Wed, 21 Oct from Sydney to London, returning Sun, 8 Nov, priced at £710 found 4 days ago
Air China
Tue, 20 Oct - Sun, 15 Nov
SYD
Sydney
LHR
London
£800 Return, found 6 hours ago
£800
Return
found 6 hours ago
Select Air China flight, departing Tue, 20 Oct from Sydney to London, returning Sun, 15 Nov, priced at £800 found 6 hours ago
China Eastern Airlines
Wed, 4 Nov - Tue, 10 Nov
SYD
Sydney
LHR
London
£897 Return, found 2 hours ago
£897
Return
found 2 hours ago
Select China Eastern Airlines flight, departing Wed, 4 Nov from Sydney to London, returning Tue, 10 Nov, priced at £897 found 2 hours ago
Asiana Airlines
Wed, 3 Feb - Thu, 11 Feb
SYD
Sydney
LHR
London
£916 Return, found 2 hours ago
£916
Return
found 2 hours ago
Select Asiana Airlines flight, departing Wed, 3 Feb from Sydney to London, returning Thu, 11 Feb, priced at £916 found 2 hours ago
Tianjin Airlines
Tue, 8 Sept - Sat, 12 Sept
SYD
Sydney
LHR
London
£925 Return, found 4 days ago
£925
Return
found 4 days ago
Select Tianjin Airlines flight, departing Tue, 8 Sept from Sydney to London, returning Sat, 12 Sept, priced at £925 found 4 days ago
Turkish Airlines
Thu, 26 Nov - Thu, 3 Dec
SYD
Sydney
LHR
London
£965 Return, found 3 days ago
£965
Return
found 3 days ago
Select Turkish Airlines flight, departing Thu, 26 Nov from Sydney to London, returning Thu, 3 Dec, priced at £965 found 3 days ago
Vietnam Airlines
Mon, 19 Oct - Tue, 27 Oct
SYD
Sydney
LHR
London
£979 Return, found 1 day ago
£979
Return
found 1 day ago
Select Vietnam Airlines flight, departing Mon, 19 Oct from Sydney to London, returning Tue, 27 Oct, priced at £979 found 1 day ago
Virgin Atlantic
Mon, 18 May - Mon, 15 Jun
SYD
Sydney
LHR
London
£983 Return, found 2 days ago
£983
Return
found 2 days ago
Select Virgin Atlantic flight, departing Mon, 18 May from Sydney to London, returning Mon, 15 Jun, priced at £983 found 2 days ago
Singapore Airlines
Thu, 15 Oct - Sat, 21 Nov
SYD
Sydney
LHR
London
£1,025 Return, just found
£1,025
Return
just found
Select Singapore Airlines flight, departing Thu, 15 Oct from Sydney to London, returning Sat, 21 Nov, priced at £1,025 just found
Qatar Airways
Wed, 11 Nov - Wed, 25 Nov
SYD
Sydney
LHR
London
£1,025 Return, found 14 hours ago
£1,025
Return
found 14 hours ago
Select Qatar Airways flight, departing Wed, 11 Nov from Sydney to London, returning Wed, 25 Nov, priced at £1,025 found 14 hours ago

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Gatwick LGW. Average driving time to city centre is 52 minutes. Flights from £1,240
LGW
Gatwick
Average driving time to city centre52 min
Flights from £1,240

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

June is typically the cheapest month to fly

From £625 - £1,184 per traveller.

Frequently asked questions

How much is a flight from Mascot Airport to London Heathrow?
Round-trip journeys from SYD to LHR start from £710. 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.

Frequently asked questions

How much does a flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow) cost?
One-way flights typically cost between £942 and £4,522 and return flights often range between £2,483 and £12,530. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
What is the cheapest month to fly from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow)?
March is typically the cheapest month to fly from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow), with average return fares of approximately £1681. This is about 21% lower than the average price throughout the year. March often sees lower prices as it's outside of peak holiday seasons, leading to reduced demand. Other cheap months to fly from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow) include May and October.
Which airlines fly direct from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow)?
Enter SYD to LHR and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow)?
To find a cheap flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow)?
The best airline to fly with from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow) will differ from traveller to traveller. If you like to fly early, BA offers early morning flights. If price is the most important factor, BA typically offers the lowest fares. QF offers the most daily flights from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow), which is brilliant if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow)?
When planning your trip from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow), you'll find the cheapest months to fly are typically March and May, with average return flight prices around £1681. However, the most popular months for this route are February and July, which means there are plenty of flight options available then. Since there isn't a month that is both cheapest and most popular, you might consider balancing your priorities. If saving money is key, aim for March or May. If you prefer a wider selection of flights and don't mind potentially higher prices, February or July could be good options. This information is based on booking data from the past year.
How many flights per day from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow)?
There is approximately 1 nonstop flight per day from Sydney, NSW (SYD-Kingsford Smith Intl.) (SYD) to London (LHR-Heathrow) (LHR). For even more choice, look at flights that include layovers. You'll find around 159 connecting flights per day. Some common connection points include Tullamarine (MEL), Changi (SIN), and Hong Kong Intl. (HKG).
What is the earliest flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow)?
The earliest flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow) typically departs at approximately 6:00 AM local time. This service is operated by Emirates and runs year-round. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow)?
You'll typically find the most flights from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow) on a Sunday, with around 51 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Qantas, Emirates, and Singapore Airlines. Flight options are notably more on Sundays compared to other days of the week.
What are the most popular departure times for flights from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow)?
The most popular departure times for flights from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow) are in the late evening, from 9pm to midnight. Approximately 24% of passengers prefer this time window. Many major carriers, including Emirates, Qatar Airways and Cathay Pacific, offer flights during this window. These times work well because you can maximise your time in Sydney before your evening flight, and you'll arrive in London in the morning ready to explore.
How long does it take to fly from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow)?
A flight from SYD to LHR with a layover takes around 24 hours 30 minutes, with the route covering approximately 10,575 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow)?
Select the "Business class" and "First class" filters when looking for SYD to LHR flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow) flight with Expedia?
It's easy to earn miles on a Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for London from Kingsford Smith Intl. (SYD)?
From Kingsford Smith Intl. (SYD), you can fly into Heathrow (LHR), Gatwick (LGW), London Intl. (YXU), London City (LCY) and Stansted (STN) in London. Some flights may connect through major hubs like Changi (SIN), Suvarnabhumi Intl. (BKK), Hong Kong Intl. (HKG) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow) at the last minute?
Typically, booking a last minute flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow) flight and hotel package?
Securing a Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow)?
If you booked your Sydney, NSW (SYD-Kingsford Smith Intl.) to London (LHR-Heathrow) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Kingsford Smith Intl.
Destination airport
Heathrow
Airlines serving
Air Canada, Air France, Air India, Asiana Airlines, British Airways, Cathay Pacific, China Airlines, China Southern Airlines, Emirates, Etihad Airways, Japan Airlines, KLM, Korean Air, Malaysia Airlines, Qantas Airways, Qatar Airways, Singapore Airlines, Thai Airways International, United, Virgin Atlantic
Return price
£710
Distance
16918 km
Average flight time
15 hours 25 mins

Book with confidence

Compare flights from Sydney to London easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Sydney to London. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Heathrow in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Kingsford Smith Intl. to Heathrow.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Kingsford Smith Intl. (SYD) to Heathrow (LHR)

The easiest way to view the best deals on flights from Sydney to London today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Kingsford Smith Intl. to Heathrow start at just £710 and range up to £1,025.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Sydney and London
  • booking your flight during October, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Sydney to London flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Kingsford Smith Intl. to Heathrow for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Sydney to London easily and book with confidence

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