Cheap flights from Sydney to London Heathrow Airport from $763
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LHR
17 May — 24 May1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Sydney Kingsford Smith to London Heathrow are usually found in February or October, booked 51 days in advance, depart on a Monday or Tuesday and return on a Monday
Cheap flight deals from Sydney to Heathrow
Enter your travel dates to find the best prices.
Cheapest
Best
Direct
Last-minute
One-way
Cheapest flights from Sydney to Heathrow
Explore the most affordable flight options available from Sydney to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 April 2026.
Wed 14/1016:40
SYD
-
LHR
1 stop24h 20m
Etihad Airways
Tue 3/1119:20
LHR
-
SYD
1 stop35h 35m
Etihad Airways
Deal found 12/4$1,324
Wed 11/1116:35
SYD
-
LHR
1 stop32h 55m
Etihad Airways
Sun 15/1119:20
LHR
-
SYD
1 stop24h 15m
Etihad Airways
Deal found 16/4$1,333
Thu 22/1020:40
SYD
-
LHR
1 stop31h 00m
Air China
Thu 12/1120:25
LHR
-
SYD
1 stop32h 05m
Air China
Deal found 12/4$1,336
Thu 7/521:00
SYD
-
LHR
2 stops31h 30m
Multiple Airlines
Sun 7/620:25
LHR
-
SYD
1 stop33h 25m
Multiple Airlines
Deal found 16/4$1,376
Thu 5/1120:40
SYD
-
LHR
1 stop32h 10m
Air China
Thu 12/1120:25
LHR
-
SYD
1 stop32h 05m
Air China
Deal found 15/4$1,383
Tue 20/1021:00
SYD
-
LHR
1 stop32h 30m
Multiple Airlines
Tue 10/1117:40
LHR
-
SYD
1 stop34h 50m
Multiple Airlines
Deal found 16/4$1,398
Thu 16/720:00
SYD
-
LHR
1 stop24h 30m
Air India
Fri 14/813:15
LHR
-
SYD
1 stop44h 10m
Air India
Deal found 13/4$1,421
Wed 5/820:00
SYD
-
LHR
1 stop25h 05m
Air India
Sat 5/913:15
LHR
-
SYD
1 stop44h 10m
Air India
Deal found 14/4$1,422
Thu 23/720:00
SYD
-
LHR
1 stop24h 30m
Air India
Thu 20/814:00
LHR
-
SYD
1 stop43h 25m
Air India
Deal found 15/4$1,428
Mon 3/820:00
SYD
-
LHR
1 stop24h 30m
Air India
Thu 3/909:45
LHR
-
SYD
1 stop23h 40m
Air India
Deal found 15/4$1,432
Best flights from Sydney to Heathrow
Discover carefully curated flight deals from Sydney to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 April 2026.
Mon 11/520:45
SYD
-
LHR
1 stop30h 15m
Qatar Airways
Mon 15/615:35
LHR
-
SYD
1 stop29h 35m
Qatar Airways
Deal found 16/4$1,921
Mon 18/520:10
SYD
-
LHR
1 stop29h 00m
Emirates
Tue 2/622:15
LHR
-
SYD
1 stop22h 50m
Emirates
Deal found 13/4$2,095
Thu 28/509:30
SYD
-
LHR
1 stop37h 50m
Asiana Airlines
Fri 12/616:35
LHR
-
SYD
1 stop41h 50m
Asiana Airlines
Deal found 12/4$2,213
Tue 12/510:15
SYD
-
LHR
2 stops39h 40m
Vietnam Airlines
Tue 23/619:50
LHR
-
SYD
1 stop27h 25m
Vietnam Airlines
Deal found 16/4$2,275
Sun 3/515:40
SYD
-
LHR
1 stop30h 05m
Multiple Airlines
Mon 11/521:45
LHR
-
SYD
2 stops36h 30m
Multiple Airlines
Deal found 15/4$2,550
Tue 16/617:55
SYD
-
LHR
2 stops29h 30m
Qantas Airways
Fri 3/714:25
LHR
-
SYD
1 stop42h 05m
Qantas Airways
Deal found 12/4$2,674
Wed 1/710:05
SYD
-
LHR
3 stops41h 35m
China Eastern
Wed 22/721:20
LHR
-
SYD
2 stops49h 40m
China Eastern
Deal found 12/4$2,731
Tue 16/614:50
SYD
-
LHR
1 stop38h 35m
Qatar Airways
Thu 25/608:25
LHR
-
SYD
1 stop36h 45m
Qatar Airways
Deal found 16/4$2,100
Fri 8/509:50
SYD
-
LHR
2 stops35h 35m
Emirates
Thu 21/522:15
LHR
-
SYD
2 stops47h 10m
Emirates
Deal found 13/4$2,121
Fri 24/420:45
SYD
-
LHR
1 stop32h 25m
Qatar Airways
Fri 1/521:10
LHR
-
SYD
2 stops35h 20m
Qatar Airways
Deal found 16/4$2,341
Mon 29/610:15
SYD
-
LHR
1 stop40h 35m
Vietnam Airlines
Wed 29/718:55
LHR
-
SYD
1 stop32h 20m
Vietnam Airlines
Deal found 16/4$2,618
Thu 30/407:20
SYD
-
LHR
3 stops35h 30m
Multiple Airlines
Thu 7/506:30
LHR
-
SYD
2 stops27h 40m
Multiple Airlines
Deal found 12/4$2,721
Direct flights from Sydney to Heathrow
Explore direct flight options from Sydney to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 April 2026.
Sun 12/714:45
SYD
-
LHR
Nonstop24h 50m
Qantas Airways
Thu 20/820:50
LHR
-
SYD
Nonstop23h 20m
Qantas Airways
Deal found 12/4$2,701
Tue 12/514:35
SYD
-
LHR
Nonstop24h 00m
British Airways
Tue 19/522:00
LHR
-
SYD
Nonstop23h 05m
British Airways
Deal found 13/4$2,798
Tue 5/514:35
SYD
-
LHR
Nonstop24h 00m
British Airways
Mon 25/522:00
LHR
-
SYD
Nonstop23h 05m
British Airways
Deal found 14/4$2,801
Tue 14/714:45
SYD
-
LHR
Nonstop24h 50m
Qantas Airways
Tue 11/820:50
LHR
-
SYD
Nonstop23h 20m
Qantas Airways
Deal found 16/4$2,823
Mon 6/714:35
SYD
-
LHR
Nonstop24h 00m
British Airways
Mon 14/922:00
LHR
-
SYD
Nonstop23h 05m
British Airways
Deal found 14/4$2,833
Wed 15/714:45
SYD
-
LHR
Nonstop24h 50m
Qantas Airways
Mon 10/820:50
LHR
-
SYD
Nonstop23h 20m
Qantas Airways
Deal found 16/4$2,861
Sat 13/614:35
SYD
-
LHR
Nonstop24h 00m
British Airways
Wed 17/622:00
LHR
-
SYD
Nonstop23h 05m
British Airways
Deal found 14/4$2,862
Tue 2/614:35
SYD
-
LHR
Nonstop24h 00m
British Airways
Tue 16/622:00
LHR
-
SYD
Nonstop23h 05m
British Airways
Deal found 14/4$2,876
Sun 12/714:45
SYD
-
LHR
Nonstop24h 50m
Qantas Airways
Sun 16/820:50
LHR
-
SYD
Nonstop23h 20m
Qantas Airways
Deal found 13/4$2,893
Mon 18/514:35
SYD
-
LHR
Nonstop24h 00m
British Airways
Tue 2/622:00
LHR
-
SYD
Nonstop23h 05m
British Airways
Deal found 12/4$2,910
Wed 8/714:45
SYD
-
LHR
Nonstop24h 50m
Qantas Airways
Wed 9/920:50
LHR
-
SYD
Nonstop23h 20m
Qantas Airways
Deal found 13/4$2,982
Last-minute flights from Sydney to Heathrow
Discover last-minute flight deals from Sydney to Heathrow. Data last updated 17 April 2026 and is based on user searches.
Sun 19/415:40
SYD
-
LHR
1 stop32h 25m
Etihad Airways
Sun 26/420:45
LHR
-
SYD
1 stop35h 05m
Etihad Airways
Deal found 13/4$1,515
Sun 19/415:40
SYD
-
LHR
1 stop36h 40m
Etihad Airways
Wed 22/409:15
LHR
-
SYD
1 stop22h 35m
Etihad Airways
Deal found 14/4$1,521
Tue 21/415:40
SYD
-
LHR
1 stop36h 40m
Etihad Airways
Thu 23/421:10
LHR
-
SYD
1 stop34h 40m
Etihad Airways
Deal found 15/4$1,507
Tue 21/415:40
SYD
-
LHR
1 stop36h 40m
Etihad Airways
Sat 25/421:10
LHR
-
SYD
1 stop34h 40m
Etihad Airways
Deal found 14/4$1,517
Wed 22/415:40
SYD
-
LHR
1 stop36h 40m
Etihad Airways
Wed 13/521:45
LHR
-
SYD
1 stop34h 05m
Etihad Airways
Deal found 13/4$1,511
Thu 7/521:00
SYD
-
LHR
2 stops31h 30m
Multiple Airlines
Sun 7/620:25
LHR
-
SYD
1 stop33h 25m
Multiple Airlines
Deal found 16/4$1,376
Sat 9/515:40
SYD
-
LHR
1 stop24h 20m
Etihad Airways
Fri 29/509:30
LHR
-
SYD
1 stop22h 20m
Etihad Airways
Deal found 14/4$1,513
Sun 10/515:40
SYD
-
LHR
1 stop36h 05m
Etihad Airways
Mon 25/509:30
LHR
-
SYD
1 stop22h 20m
Etihad Airways
Deal found 12/4$1,509
Wed 13/515:40
SYD
-
LHR
1 stop24h 20m
Etihad Airways
Tue 26/521:45
LHR
-
SYD
1 stop34h 05m
Etihad Airways
Deal found 12/4$1,510
Wed 20/515:40
SYD
-
LHR
1 stop32h 25m
Etihad Airways
Wed 10/614:45
LHR
-
SYD
1 stop41h 05m
Etihad Airways
Deal found 14/4$1,489
One-way flights from Sydney to Heathrow
Search for one-way flight options from Sydney to Heathrow. Find affordable one-way fares based on user searches. Data last updated 17 April 2026.
Fri 10/709:45
SYD
-
LHR
3 stops36h 00m
Multiple Airlines
Deal found 12/4$763
Tue 16/620:35
SYD
-
LHR
2 stops43h 20m
Multiple Airlines
Deal found 13/4$764
Thu 28/520:35
SYD
-
LHR
2 stops43h 20m
Multiple Airlines
Deal found 13/4$767
Mon 27/420:50
SYD
-
LHR
2 stops49h 40m
Multiple Airlines
Deal found 12/4$768
Tue 28/413:00
SYD
-
LHR
2 stops34h 00m
Multiple Airlines
Deal found 13/4$770
Wed 6/515:40
SYD
-
LHR
1 stop30h 05m
Etihad Airways
Deal found 14/4$771
Tue 28/415:40
SYD
-
LHR
1 stop32h 25m
Etihad Airways
Deal found 14/4$772
Thu 16/721:00
SYD
-
LHR
2 stops31h 30m
Hainan Airlines
Deal found 14/4$774
Sun 3/520:35
SYD
-
LHR
2 stops43h 25m
Multiple Airlines
Deal found 15/4$775
Mon 25/520:35
SYD
-
LHR
2 stops43h 20m
Multiple Airlines
Deal found 12/4$778
Sat 23/515:40
SYD
-
LHR
1 stop30h 05m
Etihad Airways
Deal found 15/4$779
Find flight deals from Sydney to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 April 2026.
Customise your flight search to find flights from Sydney to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 17 April 2026.
Use the filters below to find and compare flights from Sydney to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Mon 11/5
20:45-18:00
1 stop30h 15m
London Heathrow
Mon 15/6
15:35-06:10
1 stop29h 35m
$1,921
Fastest return journey
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Mon 18/5
20:10-16:10
1 stop29h 00m
London Heathrow
Tue 2/6
22:15-06:05
1 stop22h 50m
$2,095
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Tue 16/6
14:50-20:25
1 stop38h 35m
London Heathrow
Thu 25/6
08:25-06:10
1 stop36h 45m
$2,100
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Fri 8/5
09:50-12:25
2 stops35h 35m
London Heathrow
Thu 21/5
22:15-06:25
2 stops47h 10m
$2,121
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Thu 28/5
09:30-14:20
1 stop37h 50m
London Heathrow
Fri 12/6
16:35-19:25
1 stop41h 50m
$2,213
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Tue 12/5
10:15-16:55
2 stops39h 40m
London Heathrow
Tue 23/6
19:50-08:15
1 stop27h 25m
$2,275
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Fri 24/4
20:45-20:10
1 stop32h 25m
London Heathrow
Fri 1/5
21:10-17:30
2 stops35h 20m
$2,341
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Sun 3/5
15:40-12:45
1 stop30h 05m
London Heathrow
Mon 11/5
21:45-19:15
2 stops36h 30m
$2,550
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Mon 29/6
10:15-17:50
1 stop40h 35m
London Heathrow
Wed 29/7
18:55-12:15
1 stop32h 20m
$2,618
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Tue 16/6
17:55-14:25
2 stops29h 30m
London Heathrow
Fri 3/7
14:25-17:30
1 stop42h 05m
$2,674
Flights are sorted by cheapest return flights first.
Deals found on 16/4
Showing 1-10 of 20 resultsSorted by cheapest first
1
2
Best time to book a flight from Sydney to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from Sydney with our price prediction graph.
SYD-LHR
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Sydney to London Heathrow Airport
Prices
Airlines
More
How far ahead should I book a flight from Sydney to London Heathrow Airport?
Use this chart to determine the optimal time to book a return flight from Sydney to Heathrow. Price data was last updated on 10 April 2026.
To ensure you get the cheapest price possible for a flight from Sydney to London Heathrow Airport, you should look to book at least 51 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Sydney to London Heathrow Airport?
Currently, February is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of $1,506). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of $2,394). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SYD to LHR?
Find hourly flight availability from Sydney to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 April 2026.
When flying from Sydney to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How much does it cost for a return flight from Sydney to London Heathrow Airport?
Weekly flight availability from Sydney to London Heathrow Airport
Explore weekly flight availability from Sydney to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 17 April 2026.
The most flights from SYD to LHR are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).
What’s the top stopover airport for flights from Sydney to London Heathrow Airport?
Share of one-stop return flights from Sydney to London Heathrow Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Abu Dhabi (AUH) – chosen by Cheapflights users on 17% of one-stop itineraries from Sydney to London Heathrow Airport on Cheapflights.
What’s the cheapest stopover airport for flights from Sydney to London Heathrow Airport?
Average return fare for one-stop flights from Sydney to London Heathrow Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Haikou (HAK) is the most affordable one-stop option, with an average return flight price of $1,678.
What’s the fastest stopover option from Sydney to London Heathrow Airport?
Shortest average travel time for one-stop one-way flights from Sydney to London Heathrow Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Singapore (SIN) have the shortest average one-way travel time for one-stop routes: 24h 51m.
Which airport typically offers the quickest stopover for flights from Sydney to London Heathrow Airport?
Average stopover duration for one-stop one-way flights from Sydney to London Heathrow Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Istanbul (IST) offer the fastest connection on this route, with an average stopover time of 2h 36m.
Reviews of airlines servicing Heathrow
Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 17 April 2026.
Read through reviews of airlines operating flights from Sydney to London Heathrow Airport, such as Emirates,Cathay Pacific, andQantas Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Emirates is the best airline in the world Big up Emirates airlines
Related info for your journey
Find useful and relevant information for your journey from Sydney to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly from for flights from Sydney to London Heathrow?
Sydney Kingsford Smith (SYD) is the airport you will fly out of if you book a flight from Sydney to London Heathrow. You should not have trouble finding flights to London Heathrow from Kingsford Smith; the airport handles an average of 3 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 24 airlines have flights from the Sydney airport to London Heathrow. It is only a 7.5 km journey to Kingsford Smith (SYD) from Sydney’s city centre.
How long is the flight from Sydney to London Heathrow Airport?
Qatar Airways, Emirates, and Asiana Airlines can get you from Sydney to London Heathrow Airport in just under 29h. Your travel time can differ by up to 8h 50m. Airlines will cover a distance of 17008 km. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Sydney to London Heathrow Airport round-trip?
Currently priced at $936, Air China will fly you from Sydney to London Heathrow Airport and back. In addition to Air China, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from China Southern and Etihad Airways - these airlines can fly you to your destination from $994 and $1,157, respectively. Air China is 49% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Sydney to London Heathrow Airport one-way?
The cheapet airlines for a one-way flight from Sydney to London Heathrow Airport are Hainan Airlines ($360), Air China ($540), and China Southern ($545).
What are the cheapest flights from Sydney to London Heathrow Airport?
While on average a flight from Sydney to London Heathrow Airport is generally $7,507, our data shows the cheapest flight currently is $1,602. When looking at the most popular route, (Sydney Kingsford Smith - London Heathrow), you can expect to pay $1,185 for that flight.
Where are the most common stopover locations when flying from Sydney to London Heathrow Airport?
Of the flights from Sydney to London Heathrow Airport that have stopovers, most of them stop in Singapore. Singapore is followed by Abu Dhabi in terms of the most popular stopover location on flights from Sydney to London Heathrow Airport. Kuala Lumpur sees the third most stopovers on flights from Sydney to London Heathrow Airport.
What are some popular things to do or see while on a stopover in Singapore?
Sentosa, Universal Studios Singapore, and Merlion are currently the most popular points of interest in Singapore at the moment. Sentosa, Universal Studios Singapore, and Merlion can be visited by traveling about 21.6 km, 21.6 km, and 16.9 km respectively from Singapore Changi. Travellers can rent a car at Singapore Changi for an average daily rate of $119 to make sightseeing during their stopover a little easier.
What are points of interest worth seeing during a stopover in Kuala Lumpur?
Petronas Towers, Kuala Lumpur Tower, and Berjaya Times Square are currently the most popular points of interest in Kuala Lumpur. Petronas Towers, Kuala Lumpur Tower, and Berjaya Times Square can be visited by travelling about 46.6 km, 46.0 km, and 44.9 km respectively from Kuala Lumpur Intl. Travellers in need of a car in Kuala Lumpur can hire one for about $44 per day.
Where are the least popular stopover locations for Sydney to London Heathrow Airport flights?
Flights departing from Sydney and landing in London Heathrow Airport stopover in Beijing least frequently. Seoul follows Beijing in terms of the least common stopover location on Sydney to London Heathrow Airport flights. Istanbul ranks third to last in terms of the least popular stopover locations on Sydney to London Heathrow Airport flights.
Can I find deals for flights from Sydney to Heathrow that include hotel bookings?
Yes. In addition to deals on Sydney to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Sydney to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Heathrow.
Can I find deals for business class flights from Sydney to Heathrow?
Yes. Cheapflights offers flight deals from Sydney to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Sydney to London Heathrow Airport?
Currently, February is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of $1,506). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of $2,394). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Travelling to a place near London Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Kingston upon Thames
Salisbury
Horsham
Chatham
Aylesbury
Dover
Luton
Braintree
Gatwick
Chertsey
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Airlines
Alternative routes
Complete your trip
Direct flights to England
Flights by cabin class
Heathrow flight routes
Other flight options
Other flights from Sydney
Popular flights
Fly from Sydney to Heathrow on these airlines
Choose from the following airlines for your flight from Sydney to Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 17 April 2026.
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 17 April 2026.
Discover the top 10 airlines that operate flights from Sydney to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 17 April 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Sydney to Heathrow?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Sydney today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from Sydney to Heathrow?
Cheapflights simply makes it quick and affordable to book flights from Sydney to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from Sydney to Heathrow with no change fees?
Yes! Cheapflights helps users easily find flights from Sydney to Heathrow with no change fees.
Can Cheapflights notify me if prices for flights from Sydney to Heathrow become cheaper?
Yes, Cheapflights offers price alerts on Sydney to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyse navigation, to offer and measure personalised advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review your choices and withdraw your consent at any time by clicking the ’Privacy Preferences’ link in the page side navigation.