Cheap flights from Sydney to London Heathrow Airport from $774
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 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — LHR
17 Jan — 24 Jan1
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 October or February, booked 51 days in advance, depart on a Monday or Tuesday and return on a Thursday
Cheap flight deals from Sydney to Heathrow
Enter your travel dates to find the best prices.
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 18 December 2025.
Tue 23/1221:30SYD - LHR
1 stop31h 00mChina Eastern
Sat 9/521:20LHR - SYD
1 stop30h 15mChina Eastern
Deal found 15/12$1,820
Tue 23/1219:40SYD - LHR
1 stop31h 40mMultiple Airlines
Sat 9/521:20LHR - SYD
1 stop30h 15mMultiple Airlines
Deal found 16/12$1,894
Sun 21/1219:40SYD - LHR
2 stops33h 15mHainan Airlines
Mon 29/1221:00LHR - SYD
2 stops31h 20mHainan Airlines
Deal found 18/12$1,918
Thu 25/1221:00SYD - LHR
2 stops31h 35mMultiple Airlines
Mon 29/1221:00LHR - SYD
3 stops46h 55mMultiple Airlines
Deal found 18/12$1,995
Sat 27/1221:00SYD - LHR
1 stop31h 55mMultiple Airlines
Sat 17/121:00LHR - SYD
2 stops46h 55mMultiple Airlines
Deal found 16/12$2,001
Thu 25/1221:00SYD - LHR
2 stops31h 35mHainan Airlines
Mon 29/1221:00LHR - SYD
2 stops31h 20mHainan Airlines
Deal found 18/12$2,018
Tue 23/1219:40SYD - LHR
1 stop31h 40mHainan Airlines
Mon 29/1221:00LHR - SYD
2 stops31h 20mHainan Airlines
Deal found 17/12$2,071
Sun 21/1219:40SYD - LHR
2 stops33h 15mHainan Airlines
Sun 28/1221:15LHR - SYD
1 stop30h 40mHainan Airlines
Deal found 17/12$2,108
Sun 28/1221:00SYD - LHR
2 stops31h 55mMultiple Airlines
Sat 17/121:00LHR - SYD
2 stops46h 55mMultiple Airlines
Deal found 15/12$2,116
Thu 25/1221:00SYD - LHR
2 stops31h 35mHainan Airlines
Sun 28/1221:15LHR - SYD
1 stop30h 40mHainan Airlines
Deal found 18/12$2,117
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 18 December 2025.
Sat 9/510:15SYD - LHR
2 stops40h 35mVietnam Airlines
Thu 28/519:10LHR - SYD
1 stop28h 05mVietnam Airlines
Deal found 16/12$1,702
Mon 2/322:10SYD - LHR
1 stop29h 45mChina Airlines
Wed 8/421:10LHR - SYD
1 stop28h 35mChina Airlines
Deal found 17/12$1,714
Sun 3/521:10SYD - LHR
2 stops27h 10mTurkish Airlines
Thu 28/506:30LHR - SYD
2 stops27h 45mTurkish Airlines
Deal found 16/12$1,720
Sat 14/321:45SYD - LHR
1 stop43h 55mEtihad Airways
Tue 7/414:45LHR - SYD
1 stop41h 15mEtihad Airways
Deal found 16/12$1,749
Thu 23/409:30SYD - LHR
1 stop42h 20mAsiana Airlines
Sat 9/520:40LHR - SYD
1 stop25h 50mAsiana Airlines
Deal found 17/12$1,756
Fri 20/310:45SYD - LHR
3 stops35h 20mMultiple Airlines
Sat 4/419:55LHR - SYD
3 stops30h 50mMultiple Airlines
Deal found 17/12$1,827
Sat 9/514:15SYD - LHR
1 stop36h 35mVietnam Airlines
Mon 25/518:55LHR - SYD
1 stop32h 20mVietnam Airlines
Deal found 16/12$1,711
Tue 5/521:10SYD - LHR
2 stops27h 10mTurkish Airlines
Mon 25/506:30LHR - SYD
2 stops27h 45mTurkish Airlines
Deal found 16/12$1,720
Sat 14/321:45SYD - LHR
1 stop27h 45mEtihad Airways
Wed 8/421:45LHR - SYD
1 stop23h 25mEtihad Airways
Deal found 16/12$1,749
Fri 13/321:15SYD - LHR
2 stops27h 55mTurkish Airlines
Mon 6/418:30LHR - SYD
2 stops39h 45mTurkish Airlines
Deal found 16/12$1,721
Mon 18/510:15SYD - LHR
2 stops63h 40mVietnam Airlines
Tue 9/619:50LHR - SYD
1 stop27h 25mVietnam Airlines
Deal found 16/12$1,723
Sat 14/321:15SYD - LHR
2 stops29h 55mTurkish Airlines
Sun 12/422:35LHR - SYD
2 stops35h 40mTurkish Airlines
Deal found 16/12$1,721
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 18 December 2025.
Mon 2/216:15SYD - LHR
Nonstop25h 00mQantas Airways
Mon 16/220:10LHR - SYD
Nonstop23h 25mQantas Airways
Deal found 18/12$1,944
Mon 9/216:15SYD - LHR
Nonstop25h 00mQantas Airways
Tue 17/220:10LHR - SYD
Nonstop23h 25mQantas Airways
Deal found 17/12$1,948
Tue 17/216:15SYD - LHR
Nonstop25h 00mQantas Airways
Sun 22/220:10LHR - SYD
Nonstop23h 25mQantas Airways
Deal found 17/12$1,950
Sun 3/514:45SYD - LHR
Nonstop24h 50mQantas Airways
Sun 17/520:50LHR - SYD
Nonstop23h 20mQantas Airways
Deal found 18/12$1,975
Tue 24/316:15SYD - LHR
Nonstop25h 00mQantas Airways
Tue 2/620:50LHR - SYD
Nonstop23h 20mQantas Airways
Deal found 17/12$1,977
Tue 24/315:55SYD - LHR
Nonstop25h 20mQantas Airways
Thu 4/620:50LHR - SYD
Nonstop23h 20mQantas Airways
Deal found 16/12$1,978
Sun 3/514:45SYD - LHR
Nonstop24h 50mQantas Airways
Sun 31/520:50LHR - SYD
Nonstop23h 20mQantas Airways
Deal found 17/12$1,980
Mon 16/216:15SYD - LHR
Nonstop25h 00mQantas Airways
Fri 20/220:10LHR - SYD
Nonstop23h 25mQantas Airways
Deal found 17/12$1,981
Wed 29/414:45SYD - LHR
Nonstop24h 50mQantas Airways
Wed 13/520:50LHR - SYD
Nonstop23h 20mQantas Airways
Deal found 16/12$1,983
Sat 7/216:15SYD - LHR
Nonstop25h 00mQantas Airways
Sun 1/320:10LHR - SYD
Nonstop23h 25mQantas Airways
Deal found 16/12$1,986
Sun 1/215:55SYD - LHR
Nonstop25h 20mQantas Airways
Mon 9/220:10LHR - SYD
Nonstop23h 25mQantas Airways
Deal found 15/12$1,987
Last-minute flights from Sydney to Heathrow
Discover last-minute flight deals from Sydney to Heathrow. Data last updated 18 December 2025 and is based on user searches.
Sun 11/115:15SYD - LHR
1 stop38h 20mChina Southern
Sun 8/322:00LHR - SYD
1 stop24h 25mChina Southern
Deal found 17/12$1,744
Thu 15/120:40SYD - LHR
1 stop30h 15mMultiple Airlines
Thu 22/121:00LHR - SYD
3 stops47h 20mMultiple Airlines
Deal found 18/12$1,703
Tue 20/121:30SYD - LHR
1 stop31h 00mChina Eastern
Thu 29/121:00LHR - SYD
1 stop22h 30mChina Eastern
Deal found 16/12$1,728
Mon 26/110:30SYD - LHR
1 stop42h 00mChina Eastern
Sat 31/121:00LHR - SYD
2 stops46h 55mChina Eastern
Deal found 15/12$1,761
Fri 30/120:40SYD - LHR
2 stops34h 00mAir China
Sat 7/221:35LHR - SYD
2 stops30h 55mAir China
Deal found 16/12$1,723
Sat 31/121:45SYD - LHR
1 stop31h 25mEtihad Airways
Sat 7/208:50LHR - SYD
1 stop34h 45mEtihad Airways
Deal found 17/12$1,664
Sat 31/115:15SYD - LHR
1 stop38h 20mMultiple Airlines
Sat 7/221:00LHR - SYD
2 stops46h 55mMultiple Airlines
Deal found 17/12$1,708
Sat 31/115:15SYD - LHR
1 stop38h 20mMultiple Airlines
Mon 16/221:00LHR - SYD
2 stops51h 00mMultiple Airlines
Deal found 17/12$1,734
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 18 December 2025.
Sun 1/213:35SYD - LHR
3 stops31h 10mMultiple Airlines
Deal found 17/12$774
Thu 15/121:00SYD - LHR
2 stops31h 35mHainan Airlines
Deal found 17/12$775
Thu 22/121:00SYD - LHR
2 stops31h 35mHainan Airlines
Deal found 16/12$777
Fri 20/310:45SYD - LHR
2 stops43h 45mMultiple Airlines
Deal found 17/12$778
Tue 2/621:00SYD - LHR
1 stop31h 30mHainan Airlines
Deal found 15/12$781
Sun 3/510:15SYD - LHR
3 stops37h 30mMultiple Airlines
Deal found 16/12$783
Tue 2/610:15SYD - LHR
2 stops41h 45mMultiple Airlines
Deal found 15/12$784
Fri 16/121:50SYD - LHR
3 stops55h 20mMultiple Airlines
Deal found 17/12$787
Thu 15/120:05SYD - LHR
3 stops33h 05mMultiple Airlines
Deal found 16/12$789
Thu 21/510:15SYD - LHR
3 stops37h 30mMultiple Airlines
Deal found 17/12$790
Fri 20/206:00SYD - LHR
3 stops38h 55mMultiple Airlines
Deal found 16/12$793
Sat 24/114:00SYD - LHR
2 stops31h 35mMultiple Airlines
Deal found 16/12$796
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 18 December 2025.
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 18 December 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
Sat 9/5
10:15-17:50
2 stops40h 35m
London Heathrow
Thu 28/5
19:10-08:15
1 stop28h 05m
$1,702
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Sat 9/5
14:15-17:50
1 stop36h 35m
London Heathrow
Mon 25/5
18:55-12:15
1 stop32h 20m
$1,711
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Mon 2/3
22:10-16:55
1 stop29h 45m
London Heathrow
Wed 8/4
21:10-10:45
1 stop28h 35m
$1,714
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Sun 3/5
21:10-15:20
2 stops27h 10m
London Heathrow
Thu 28/5
06:30-19:15
2 stops27h 45m
$1,720
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Tue 5/5
21:10-15:20
2 stops27h 10m
London Heathrow
Mon 25/5
06:30-19:15
2 stops27h 45m
$1,720
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Fri 13/3
21:15-14:10
2 stops27h 55m
London Heathrow
Mon 6/4
18:30-19:15
2 stops39h 45m
$1,721
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Sat 14/3
21:15-16:10
2 stops29h 55m
London Heathrow
Sun 12/4
22:35-19:15
2 stops35h 40m
$1,721
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Mon 18/5
10:15-16:55
2 stops63h 40m
London Heathrow
Tue 9/6
19:50-08:15
1 stop27h 25m
$1,723
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Sat 14/3
21:45-06:40
1 stop43h 55m
London Heathrow
Tue 7/4
14:45-17:00
1 stop41h 15m
$1,749
SydneyLondon
SYD - LHR
SYDLHR
Sydney Kingsford Smith
Sat 14/3
21:45-14:30
1 stop27h 45m
London Heathrow
Wed 8/4
21:45-06:10
1 stop23h 25m
$1,749
Flights are sorted by cheapest return flights first.
Deals found on 16/12
Showing 1-10 of 18 results
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.
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 12 December 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 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, October is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of $1,217). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of $1,861). 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 18 December 2025.
It’s optimal to fly from Sydney to London Heathrow Airport in the evening. By choosing this option you can save up to 25% 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.
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 18 December 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 19% 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.
Chongqing (CKG) is the most affordable one-stop option, with an average return flight price of $1,219.
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: 25h 11m.
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 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 18 December 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 25 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?
Vietnam Airlines, China Airlines, and Turkish Airlines can get you from Sydney to London Heathrow Airport in just under 27h 10m. Your travel time can differ by up to 13h 25m. 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 $1,144, 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 China Eastern - these airlines can fly you to your destination from $1,153 and $1,247, respectively. Air China is 41% 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 Etihad Airways ($504), Tianjin Airlines ($520), and China Southern ($573).
What are the cheapest flights from Sydney to London Heathrow Airport?
While on average a flight from Sydney to London Heathrow Airport is generally $8,030, our data shows the cheapest flight currently is $1,151. When looking at the most popular route, (Sydney Kingsford Smith - London Heathrow), you can expect to pay $1,168 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, Merlion, and Universal Studios Singapore are currently the most popular points of interest in Singapore at the moment. Sentosa, Merlion, and Universal Studios Singapore can be visited by traveling about 21.6 km, 16.9 km, and 21.6 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 points of interest worth seeing during a stopover in Kuala Lumpur?
Berjaya Times Square, Petronas Towers, and National Mosque of Malaysia are currently the most popular points of interest in Kuala Lumpur. Berjaya Times Square, Petronas Towers, and National Mosque of Malaysia can be visited by travelling about 44.9 km, 46.6 km, and 44.8 km respectively from Kuala Lumpur Intl. Travellers in need of a car in Kuala Lumpur can hire one for about $39 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 Seoul least frequently. Beijing follows Seoul in terms of the least common stopover location on Sydney to London Heathrow Airport flights. Muscat 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 $1,217). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of $1,861). 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
Kingston upon Thames
Salisbury
Hounslow
Horsham
Southall
Chatham
Dorking
Dover
Braintree
Gatwick
Chertsey
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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 18 December 2025.
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 18 December 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 18 December 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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