Cheap flights from London Heathrow Airport to Sydney from $845
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SYD
31 Oct — 7 Nov1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Sydney Kingsford Smith are usually found in May or June, booked 37 days in advance, depart on a Wednesday or Monday and return on a Monday
Cheap flight deals from Heathrow to Sydney
Enter your travel dates to find the best prices.
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Best
Direct
Last-minute
One-way
Cheapest flights from Heathrow to Sydney
Explore the most affordable flight options available from Heathrow to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 October 2026.
Mon 9/1121:30 -
2 stops47h 00m
Sun 22/1122:05 -
2 stops55h 30m
Deal found 1/10$1,394
Sat 31/1021:30 -
2 stops28h 50m
Sat 7/1115:10 -
1 stop38h 25m
Deal found 1/10$1,395
Fri 4/1222:00 -
1 stop28h 20m
Thu 21/122:05 -
1 stop31h 30m
Deal found 1/10$1,397
Wed 4/1122:00 -
1 stop28h 20m
Fri 5/315:10 -
2 stops38h 25m
Deal found 1/10$1,398
Thu 5/1117:45 -
1 stop27h 20m
Tue 1/1210:30 -
1 stop42h 20m
Deal found 1/10$1,400
Sun 25/1021:00 -
1 stop29h 35m
Thu 12/1121:30 -
1 stop31h 00m
Deal found 1/10$1,401
Tue 27/1021:00 -
1 stop29h 35m
Fri 13/1111:10 -
3 stops41h 20m
Deal found 1/10$1,402
Sat 31/1022:00 -
1 stop28h 20m
Sat 14/1115:10 -
1 stop38h 25m
Deal found 1/10$1,404
Mon 26/1021:00 -
1 stop26h 00m
Tue 10/1121:30 -
1 stop31h 00m
Deal found 30/9$1,405
Tue 27/1022:00 -
1 stop35h 25m
Wed 11/1115:10 -
2 stops37h 45m
Deal found 29/9$1,407
Mon 26/1022:00 -
1 stop28h 20m
Mon 2/1122:05 -
2 stops50h 55m
Deal found 30/9$1,408
Wed 4/1122:00 -
1 stop28h 20m
Mon 30/1122:05 -
2 stops50h 55m
Deal found 1/10$1,410
Best flights from Heathrow to Sydney
Discover carefully curated flight deals from Heathrow to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 October 2026.
Mon 2/1106:25 -
2 stops26h 00m
Tue 10/1121:35 -
2 stops35h 55m
Deal found 27/9$1,864
Sat 24/1020:45 -
1 stop23h 45m
Mon 9/1121:30 -
1 stop31h 40m
Deal found 30/9$2,029
Wed 28/1014:50 -
2 stops34h 05m
Mon 9/1115:25 -
2 stops27h 55m
Deal found 30/9$2,169
Tue 27/1011:00 -
1 stop35h 50m
Thu 26/1111:50 -
2 stops30h 25m
Deal found 29/9$2,388
Thu 19/1120:05 -
2 stops27h 15m
Wed 2/1210:35 -
2 stops66h 50m
Deal found 28/9$2,470
Fri 13/1118:10 -
2 stops26h 25m
Thu 26/1112:30 -
3 stops31h 40m
Deal found 26/9$2,554
Fri 25/1220:10 -
1 stop29h 50m
Mon 11/113:00 -
2 stops37h 00m
Deal found 29/9$2,583
Thu 29/1017:05 -
3 stops27h 20m
Thu 5/1116:30 -
2 stops29h 15m
Deal found 28/9$2,675
Mon 12/1006:30 -
2 stops43h 15m
Sun 8/1122:10 -
2 stops47h 35m
Deal found 28/9$2,825
Fri 4/1206:25 -
2 stops26h 00m
Fri 22/121:35 -
2 stops27h 40m
Deal found 27/9$2,005
Mon 2/1117:05 -
3 stops27h 20m
Tue 2/312:00 -
2 stops30h 55m
Deal found 1/10$2,724
Thu 19/1117:05 -
3 stops27h 20m
Sun 22/1110:35 -
3 stops32h 05m
Deal found 1/10$2,766
Direct flights from Heathrow to Sydney
Explore direct flight options from Heathrow to Sydney based on user searches, and compare prices and availability for your desired travel dates. Data last updated 1 October 2026.
Wed 11/1120:10 -
Nonstop23h 25m
Wed 3/216:30 -
Nonstop24h 45m
Deal found 30/9$1,887
Wed 11/1120:10 -
Nonstop23h 25m
Sun 22/1116:30 -
Nonstop24h 45m
Deal found 1/10$1,891
Mon 23/1120:10 -
Nonstop23h 25m
Mon 8/316:30 -
Nonstop24h 45m
Deal found 30/9$1,895
Sat 14/1120:10 -
Nonstop23h 25m
Tue 24/1116:30 -
Nonstop24h 45m
Deal found 28/9$1,931
Tue 10/1121:00 -
Nonstop22h 55m
Tue 17/1116:20 -
Nonstop24h 05m
Deal found 29/9$1,941
Wed 4/1121:00 -
Nonstop22h 55m
Wed 18/1116:20 -
Nonstop24h 05m
Deal found 27/9$1,959
Last-minute flights from Heathrow to Sydney
Discover last-minute flight deals from Heathrow to Sydney. Data last updated 1 October 2026 and is based on user searches.
Tue 6/1021:45 -
1 stop36h 20m
Wed 28/1020:45 -
1 stop25h 45m
Deal found 28/9$1,607
Tue 6/1009:45 -
1 stop24h 20m
Tue 20/1021:35 -
1 stop31h 25m
Deal found 1/10$1,621
Tue 6/1009:45 -
1 stop24h 20m
Tue 13/1021:35 -
1 stop31h 25m
Deal found 1/10$1,627
Tue 6/1009:45 -
1 stop24h 20m
Thu 22/1021:35 -
1 stop31h 25m
Deal found 29/9$1,645
Wed 7/1009:45 -
1 stop24h 20m
Sat 7/1120:45 -
1 stop25h 45m
Deal found 28/9$1,580
Wed 7/1009:45 -
1 stop24h 20m
Mon 30/1122:30 -
1 stop31h 50m
Deal found 30/9$1,585
Wed 7/1009:45 -
1 stop24h 20m
Tue 20/1021:35 -
1 stop31h 25m
Deal found 1/10$1,588
Sun 11/1019:15 -
2 stops39h 10m
Tue 10/1115:10 -
2 stops38h 25m
Deal found 29/9$1,505
One-way flights from Heathrow to Sydney
Search for one-way flight options from Heathrow to Sydney. Find affordable one-way fares based on user searches. Data last updated 1 October 2026.
Thu 19/1121:00 -
2 stops49h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 29/9$845
Thu 29/1007:30 -
3 stops42h 50m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 29/9$846
Fri 4/1220:25 -
2 stops53h 55m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 30/9$847
Tue 10/1115:45 -
3 stops34h 35m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 29/9$849
Fri 27/1120:50 -
3 stops53h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 26/9$850
Wed 28/1016:05 -
1 stop31h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 28/9$852
Tue 20/1022:40 -
1 stop31h 10m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 29/9$853
Tue 3/1117:45 -
1 stop27h 50m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 28/9$855
Sun 1/1120:25 -
1 stop24h 40m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 27/9$856
Sun 1/1121:10 -
2 stops51h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 1/10$860
Find flight deals from Heathrow to Sydney
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Sydney (SYD). 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 1 October 2026.
Customise your flight search to find flights from Heathrow to Sydney 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 7,457,451 searches. Data last updated 1 October 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Sydney that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
LondonSydney
LHR London Heathrow - SYD Sydney Kingsford Smith
LHRSYD
London Heathrow
Mon 28/12
21:10-13:40
1 stop29h 30m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
$982
LondonSydney
LHR London Heathrow - SYD Sydney Kingsford Smith
LHRSYD
London Heathrow
Fri 13/11
09:25-08:55
2 stops36h 30m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
$1,428
LondonSydney
LHR London Heathrow - SYD Sydney Kingsford Smith
LHRSYD
London Heathrow
Sat 7/11
14:55-07:25
2 stops29h 30m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
$1,428
LondonSydney
LHR London Heathrow - SYD Sydney Kingsford Smith
LHRSYD
London Heathrow
Fri 6/11
15:30-20:55
2 stops42h 25m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
$1,444
LondonSydney
LHR London Heathrow - SYD Sydney Kingsford Smith
LHRSYD
London Heathrow
Sun 1/11
11:00-09:50
2 stops59h 50m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
$1,482
LondonSydney
LHR London Heathrow - SYD Sydney Kingsford Smith
LHRSYD
London Heathrow
Sun 15/11
06:25-06:30
3 stops37h 05m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
$1,584
LondonSydney
LHR London Heathrow - SYD Sydney Kingsford Smith
LHRSYD
London Heathrow
Mon 26/10
08:25-10:20
2 stops38h 55m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
$1,585
LondonSydney
LHR London Heathrow - SYD Sydney Kingsford Smith
LHRSYD
London Heathrow
Thu 15/10
07:30-20:05
2 stops50h 35m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
$1,621
Fastest return journey
LondonSydney
LHR London Heathrow - SYD Sydney Kingsford Smith
LHRSYD
London Heathrow
Mon 2/11
17:05-07:25
3 stops27h 20m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
$1,699
LondonSydney
LHR London Heathrow - SYD Sydney Kingsford Smith
LHRSYD
London Heathrow
Wed 18/11
17:05-07:25
3 stops27h 20m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
$1,709
Flights are sorted by cheapest return flights first.
Deals found on 29/9
Showing 1-10 of 24 resultsSorted by cheapest first
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2
3
Best time to book a flight from Heathrow to Sydney
Have a flexible travel schedule? Discover the best time to fly to Sydney from Heathrow with our price prediction graph.
LHR-SYD
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 London Heathrow Airport to Sydney
Prices
More
How far ahead should I book a flight from London Heathrow Airport to Sydney?
Booking 36 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from London Heathrow Airport to Sydney?
Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Sydney (average of $1,757). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of $2,790). 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 LHR to SYD?
Find hourly flight availability from Heathrow to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 October 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Sydney as you normally would.
How much does it cost for a return flight from London Heathrow Airport to Sydney?
Airfare is below average for this route at the moment.
London Heathrow Airport to Sydney flights typically cost between $1,600 and $2,374 in November.The cheapest return price found within the last 5 days was $1,394 on China Southern (9 Nov–22 Nov).
What’s the top stopover airport for flights from London Heathrow Airport to Sydney?
Share of one-stop return flights from London Heathrow Airport to Sydney chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Abu Dhabi (AUH) – chosen by Cheapflights users on 28% of one-stop itineraries from London Heathrow Airport to Sydney on Cheapflights.
What’s the cheapest stopover airport for flights from London Heathrow Airport to Sydney?
Average return fare for one-stop flights from London Heathrow Airport to Sydney, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Ho Chi Minh City (SGN) is the most affordable one-stop option, with an average return flight price of $720.
What’s the fastest stopover option from London Heathrow Airport to Sydney?
Shortest average travel time for one-stop one-way flights from London Heathrow Airport to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Bangkok (BKK) have the shortest average one-way travel time for one-stop routes: 23h 00m.
Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Sydney?
Average stopover duration for one-stop one-way flights from London Heathrow Airport to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Singapore (SIN) offer the fastest connection on this route, with an average stopover time of 2h 18m.
Reviews of airlines servicing Sydney
Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated 1 October 2026.
Get a feel of what it's like to fly with Singapore Airlines,Qantas Airways, andChina Southern from London Heathrow Airport to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
The gate agent was rude. Very disappointing. The cabin crew was amazing. Every thing with them was great once we boarded the plane.
Related info for your journey
Find useful and relevant information for your journey from Heathrow to Sydney. 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 into for flights to Sydney from London Heathrow?
Located just 7.5 km from the city centre, Sydney Kingsford Smith is the airport most travellers will use when flying to Sydney from London Heathrow. Booking flights from London Heathrow to Kingsford Smith (SYD) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 11 different airlines.
How long is the flight from London Heathrow Airport to Sydney?
Departing from London Heathrow Airport to Sydney will take you 23h 45m. There are 17008 km between London Heathrow Airport and Sydney. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from London Heathrow Airport to Sydney round-trip?
China Southern, at $1,235, was found to be the cheapest airline from London Heathrow Airport to Sydney.Alternate airlines to your destination round-trip include Qatar Airways and Air India. China Southern is 40% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from London Heathrow Airport to Sydney one-way?
For one-way options, check prices for Air China. According to our data, you can fly for as low as $513. Users have also found prices from $709 and $737 on China Eastern and China Southern, respectively.
What are the cheapest flights from London Heathrow Airport to Sydney?
Looking for the cheapest flight from London Heathrow Airport to Sydney? While on average our users pay $3,423, our data indicates the cheapest price to be $2,347. The most popular route (London Heathrow - Sydney Kingsford Smith), is priced around $1,257.
Can I find deals for business class flights from Heathrow to Sydney?
Yes. Cheapflights offers flight deals from Heathrow to Sydney 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 London Heathrow Airport to Sydney?
Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Sydney (average of $1,757). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of $2,790). 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.
Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Penrith
Manly
Lithgow
Cronulla
Terrigal
Katoomba
Randwick
Leura
Bondi Beach
Coogee
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Fly from Heathrow to Sydney on these airlines
Choose from the following airlines for your flight from Heathrow to Sydney. Flights are based on user searches made on Cheapflights and were last updated on 1 October 2026.
Explore flights to Sydney departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 1 October 2026.
Discover the top 10 airlines that operate flights from Heathrow to Sydney. 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 7,457,451 searches. Data last updated 1 October 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 Heathrow to Sydney?
Cheapflights helps you search for flights from Heathrow to Sydney via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to Sydney?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Sydney.
Can Cheapflights find flights from Heathrow to Sydney with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Sydney flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Heathrow to Sydney become cheaper?
Of course! You can now track prices for flights from Heathrow to Sydney and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.
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