Cheap flights from Sydney to London Heathrow Airport from $739
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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LHR
27 Aug — 3 Sep1
Return
1 adult
Economy
Cheapflights Tip: The best prices from Sydney Kingsford Smith to London Heathrow are usually found in October or February, booked 25 days in advance, depart on a Monday or Tuesday and return on a Tuesday
Cheap 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 22 August 2025.
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 22 August 2025.
Thu 16/1021:00SYD - LHR
2 stops32h 30mMultiple Airlines
Fri 14/1117:40LHR - SYD
1 stop34h 50mMultiple Airlines
Deal found 20/8$1,482
Tue 9/919:40SYD - LHR
1 stop31h 05mAir China
Sun 14/920:25LHR - SYD
1 stop33h 25mAir China
Deal found 21/8$1,483
Tue 30/921:45SYD - LHR
1 stop30h 15mChina Southern
Tue 14/1022:10LHR - SYD
1 stop36h 15mChina Southern
Deal found 21/8$1,485
Sun 7/919:40SYD - LHR
1 stop31h 05mAir China
Sun 14/922:40LHR - SYD
1 stop31h 10mAir China
Deal found 21/8$1,486
Sat 6/919:40SYD - LHR
1 stop31h 05mMultiple Airlines
Wed 10/922:40LHR - SYD
2 stops34h 45mMultiple Airlines
Deal found 21/8$1,488
Sun 5/1013:00SYD - LHR
2 stops39h 40mChina Eastern
Tue 28/1021:00LHR - SYD
1 stop26h 00mChina Eastern
Deal found 20/8$1,491
Mon 3/1121:30SYD - LHR
1 stop31h 40mEtihad Airways
Mon 24/1113:55LHR - SYD
1 stop29h 40mEtihad Airways
Deal found 20/8$1,493
Sat 6/919:40SYD - LHR
1 stop33h 50mAir China
Thu 18/922:40LHR - SYD
1 stop31h 10mAir China
Deal found 20/8$1,494
Tue 21/1022:15SYD - LHR
1 stop30h 45mChina Southern
Tue 28/1021:30LHR - SYD
2 stops35h 50mChina Southern
Deal found 21/8$1,496
Fri 10/1016:40SYD - LHR
1 stop30h 05mEtihad Airways
Sat 22/1119:20LHR - SYD
1 stop35h 35mEtihad Airways
Deal found 21/8$1,497
Thu 11/919:40SYD - LHR
2 stops57h 35mAir China
Thu 18/922:00LHR - SYD
2 stops31h 50mAir China
Deal found 20/8$1,502
Fri 10/1021:30SYD - LHR
1 stop27h 45mEtihad Airways
Mon 24/1108:55LHR - SYD
1 stop22h 00mEtihad Airways
Deal found 20/8$1,504
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 22 August 2025.
Mon 29/921:30SYD - LHR
1 stop30h 15mEtihad Airways
Sat 1/1113:55LHR - SYD
1 stop41h 00mEtihad Airways
Deal found 21/8$1,572
Mon 29/921:30SYD - LHR
1 stop24h 15mEtihad Airways
Sun 2/1120:55LHR - SYD
1 stop22h 40mEtihad Airways
Deal found 21/8$1,572
Fri 3/1021:30SYD - LHR
1 stop24h 15mEtihad Airways
Sun 2/1120:55LHR - SYD
1 stop22h 40mEtihad Airways
Deal found 21/8$1,572
Mon 2/216:35SYD - LHR
1 stop25h 05mEtihad Airways
Tue 24/320:55LHR - SYD
1 stop34h 00mEtihad Airways
Deal found 21/8$1,574
Tue 3/216:35SYD - LHR
1 stop25h 05mEtihad Airways
Sat 21/320:55LHR - SYD
1 stop22h 40mEtihad Airways
Deal found 21/8$1,574
Sat 7/221:30SYD - LHR
1 stop25h 35mEtihad Airways
Sat 21/320:55LHR - SYD
1 stop22h 40mEtihad Airways
Deal found 21/8$1,574
Sat 7/221:30SYD - LHR
1 stop25h 35mEtihad Airways
Tue 24/320:55LHR - SYD
1 stop34h 00mEtihad Airways
Deal found 21/8$1,574
Sun 1/216:35SYD - LHR
1 stop25h 05mEtihad Airways
Tue 24/320:55LHR - SYD
1 stop34h 00mEtihad Airways
Deal found 21/8$1,574
Tue 3/216:35SYD - LHR
1 stop25h 05mEtihad Airways
Tue 24/320:55LHR - SYD
1 stop34h 00mEtihad Airways
Deal found 21/8$1,574
Tue 3/216:35SYD - LHR
1 stop25h 05mEtihad Airways
Sun 22/308:55LHR - SYD
1 stop22h 00mEtihad Airways
Deal found 21/8$1,574
Sun 1/216:35SYD - LHR
1 stop25h 05mEtihad Airways
Sun 22/308:55LHR - SYD
1 stop22h 00mEtihad Airways
Deal found 21/8$1,574
Thu 5/221:30SYD - LHR
1 stop25h 35mEtihad Airways
Tue 24/320:55LHR - SYD
1 stop34h 00mEtihad Airways
Deal found 21/8$1,574
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 22 August 2025.
Wed 22/1015:50SYD - LHR
Nonstop24h 45mQantas Airways
Wed 12/1120:10LHR - SYD
Nonstop23h 25mQantas Airways
Deal found 22/8$1,991
Mon 10/1115:55SYD - LHR
Nonstop25h 20mQantas Airways
Sun 30/1120:10LHR - SYD
Nonstop23h 25mQantas Airways
Deal found 21/8$1,994
Tue 28/1015:55SYD - LHR
Nonstop25h 20mQantas Airways
Fri 28/1120:10LHR - SYD
Nonstop23h 25mQantas Airways
Deal found 22/8$2,028
Fri 10/1015:50SYD - LHR
Nonstop24h 45mQantas Airways
Mon 24/1120:10LHR - SYD
Nonstop23h 25mQantas Airways
Deal found 21/8$2,031
Wed 29/1015:55SYD - LHR
Nonstop25h 20mQantas Airways
Fri 7/1120:10LHR - SYD
Nonstop23h 25mQantas Airways
Deal found 21/8$2,033
Fri 3/1014:50SYD - LHR
Nonstop24h 45mQantas Airways
Wed 5/1120:10LHR - SYD
Nonstop23h 25mQantas Airways
Deal found 20/8$2,042
Fri 24/1015:40SYD - LHR
Nonstop23h 45mBritish Airways
Tue 18/1121:00LHR - SYD
Nonstop22h 55mBritish Airways
Deal found 20/8$2,044
Sat 25/1015:40SYD - LHR
Nonstop23h 45mBritish Airways
Wed 19/1121:00LHR - SYD
Nonstop22h 55mBritish Airways
Deal found 20/8$2,048
Thu 20/1115:55SYD - LHR
Nonstop25h 20mQantas Airways
Sun 30/1120:10LHR - SYD
Nonstop23h 25mQantas Airways
Deal found 21/8$2,065
Fri 10/1015:50SYD - LHR
Nonstop24h 45mQantas Airways
Sat 22/1120:10LHR - SYD
Nonstop23h 25mQantas Airways
Deal found 21/8$2,069
Last-minute flights from Sydney to Heathrow
Discover last-minute flight deals from Sydney to Heathrow. Data last updated 22 August 2025 and is based on user searches.
Thu 4/911:00SYD - LHR
1 stop40h 40mChina Eastern
Mon 15/921:20LHR - SYD
1 stop26h 40mChina Eastern
Deal found 21/8$1,510
Sat 6/919:40SYD - LHR
1 stop31h 05mMultiple Airlines
Wed 10/922:40LHR - SYD
2 stops34h 45mMultiple Airlines
Deal found 21/8$1,488
Sat 6/919:40SYD - LHR
1 stop33h 50mAir China
Thu 18/922:40LHR - SYD
1 stop31h 10mAir China
Deal found 20/8$1,494
Sun 7/919:40SYD - LHR
1 stop31h 05mAir China
Sun 14/922:40LHR - SYD
1 stop31h 10mAir China
Deal found 21/8$1,486
Sun 7/919:40SYD - LHR
1 stop33h 50mMultiple Airlines
Fri 12/922:40LHR - SYD
2 stops35h 15mMultiple Airlines
Deal found 21/8$1,519
Tue 9/919:40SYD - LHR
1 stop31h 05mAir China
Sun 14/920:25LHR - SYD
1 stop33h 25mAir China
Deal found 21/8$1,483
Tue 9/919:40SYD - LHR
1 stop33h 50mAir China
Tue 16/922:00LHR - SYD
2 stops31h 50mAir China
Deal found 19/8$1,511
Thu 11/919:40SYD - LHR
2 stops57h 35mAir China
Thu 18/922:00LHR - SYD
2 stops31h 50mAir China
Deal found 20/8$1,502
Thu 11/919:40SYD - LHR
1 stop31h 05mMultiple Airlines
Fri 28/1117:40LHR - SYD
2 stops38h 30mMultiple Airlines
Deal found 21/8$1,518
Tue 30/921:45SYD - LHR
1 stop30h 15mChina Southern
Tue 14/1022:10LHR - SYD
1 stop36h 15mChina Southern
Deal found 21/8$1,485
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 22 August 2025.
Wed 15/1016:40SYD - LHR
1 stop36h 05mEtihad Airways
Deal found 20/8$739
Tue 16/912:50SYD - LHR
3 stops53h 20mMultiple Airlines
Deal found 21/8$741
Wed 10/911:00SYD - LHR
1 stop40h 40mChina Eastern
Deal found 21/8$744
Wed 22/1013:50SYD - LHR
2 stops42h 05mMultiple Airlines
Deal found 20/8$746
Wed 10/910:15SYD - LHR
1 stop41h 45mChina Southern
Deal found 21/8$747
Thu 4/911:00SYD - LHR
1 stop40h 40mChina Eastern
Deal found 20/8$749
Wed 15/1019:05SYD - LHR
1 stop30h 40mSingapore Airlines
Deal found 20/8$750
Sat 15/1114:20SYD - LHR
3 stops62h 35mMultiple Airlines
Deal found 21/8$752
Fri 5/912:00SYD - LHR
2 stops39h 40mChina Eastern
Deal found 21/8$755
Fri 17/1021:25SYD - LHR
3 stops59h 00mMultiple Airlines
Deal found 20/8$758
Sat 15/1121:30SYD - LHR
1 stop25h 35mEtihad Airways
Deal found 22/8$764
Cheapflights Fare Finder
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 22 August 2025.
Use the filters below to find and compare flights from Sydney to London Heathrow Airport that are best for you.
Fly from
Sydney
Fly to
Heathrow
Route
Depart
Return
Price
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Mon 29/9
21:30-18:45
1 stop30h 15m
London Heathrow
Sat 1/11
13:55-17:55
1 stop41h 00m
$1,572
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Mon 29/9
21:30-12:45
1 stop24h 15m
London Heathrow
Sun 2/11
20:55-06:35
1 stop22h 40m
$1,572
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Fri 3/10
21:30-12:45
1 stop24h 15m
London Heathrow
Sun 2/11
20:55-06:35
1 stop22h 40m
$1,572
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Mon 2/2
16:35-06:40
1 stop25h 05m
London Heathrow
Tue 24/3
20:55-17:55
1 stop34h 00m
$1,574
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Tue 3/2
16:35-06:40
1 stop25h 05m
London Heathrow
Sat 21/3
20:55-06:35
1 stop22h 40m
$1,574
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Sat 7/2
21:30-12:05
1 stop25h 35m
London Heathrow
Sat 21/3
20:55-06:35
1 stop22h 40m
$1,574
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Sat 7/2
21:30-12:05
1 stop25h 35m
London Heathrow
Tue 24/3
20:55-17:55
1 stop34h 00m
$1,574
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Sun 1/2
16:35-06:40
1 stop25h 05m
London Heathrow
Tue 24/3
20:55-17:55
1 stop34h 00m
$1,574
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Tue 3/2
16:35-06:40
1 stop25h 05m
London Heathrow
Tue 24/3
20:55-17:55
1 stop34h 00m
$1,574
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Tue 3/2
16:35-06:40
1 stop25h 05m
London Heathrow
Sun 22/3
08:55-17:55
1 stop22h 00m
$1,574
Flights are sorted by cheapest return flights first.
Deals found on 20/8
Showing 1-10 of 24 results
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2
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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.
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 8 August 2025.
To ensure you get the cheapest price possible for a flight from Sydney to London Heathrow Airport, you should look to book at least 25 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, October is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of $1,037). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of $1,667). 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 22 August 2025.
It’s optimal to fly from Sydney to London Heathrow Airport in the evening. By choosing this option you can save up to 27% on the cost of your flight, compared to a flight at midday.
What is the cheapest day to fly from Sydney to London Heathrow Airport?
Use this chart to determine the cheapest time to fly return from Sydney to Heathrow. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their Sydney to London Heathrow Airport flight should consider departing on Monday evenings when fares are most often at their lowest. Friday at midday flights should be avoided if possible as fares are typically the most expensive at this time.
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 22 August 2025.
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.
Singapore (SIN) – chosen by Cheapflights users on 21% of one-stop itineraries from Sydney to London Heathrow Airport on Cheapflights.
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 Dubai (DXB) have the shortest average one-way travel time for one-stop routes: 24h 49m.
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 Dubai (DXB) have the shortest average one-way travel time for one-stop routes: 24h 49m.
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 Dubai (DXB) offer the fastest connection on this route, with an average stopover time of 2h 56m.
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 22 August 2025.
Read through reviews of airlines operating flights from Sydney to London Heathrow Airport, such as Singapore Airlines, Cathay Pacific, andQantas Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
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 28 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?
Etihad Airways can get you from Sydney to London Heathrow Airport in just under 30h 15m. Your travel time can differ by up to . Airlines will cover a distance of 17008 km.
What are the cheapest airlines flying from Sydney to London Heathrow Airport round-trip?
Currently priced at $1,206, China Southern will fly you from Sydney to London Heathrow Airport and back. In addition to China Southern, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air China and China Eastern - these airlines can fly you to your destination from $1,239 and $1,303, respectively. China Southern is 40% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest flights from Sydney to London Heathrow Airport?
While on average a flight from Sydney to London Heathrow Airport is generally $8,126, our data shows the cheapest flight currently is $1,405. When looking at the most popular route, (Sydney Kingsford Smith - London Heathrow), you can expect to pay $1,297 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 Kuala Lumpur in terms of the most popular stopover location on flights from Sydney to London Heathrow Airport. Abu Dhabi 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, Merlion, and Boat Quay are currently the most popular points of interest in Singapore at the moment. Sentosa, Merlion, and Boat Quay can be visited by traveling about 21.6 km, 16.9 km, and 17.3 km respectively from Singapore Changi. Travellers can rent a car at Singapore Changi for an average daily rate of $131 to make sightseeing during their stopover a little easier.
What are some popular points of interest to see during a stopover in Kuala Lumpur?
Petronas Towers, Berjaya Times Square, and National Mosque of Malaysia are the most popular attractions in Kuala Lumpur if you're in need of something to do during your stopover. Petronas Towers, Berjaya Times Square, and National Mosque of Malaysia can be accessed by travelling approximately 46.6 km, 44.9 km, and 44.8 km, respectively from Kuala Lumpur Intl. Travellers can book a car hire at Kuala Lumpur Intl for about $52 per day to make their sightseeing more efficient.
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 Seoul least frequently. Taipei City follows Seoul in terms of the least common stopover location on Sydney to London Heathrow Airport flights. Tokyo 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, October is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of $1,037). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of $1,667). 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
Salisbury
Horsham
Southall
Chatham
Dover
Dorking
Chertsey
Browse thousands of different options on Cheapflights for your next trip
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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 22 August 2025.
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 22 August 2025.
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 22 August 2025.
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.
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