Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Sydney from $996

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 31/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SYD
31 Jul — 7 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Sydney Kingsford Smith are usually found in May or November, booked 28 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from Heathrow to Sydney

Enter your travel dates to find the best prices.

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 July 2026.

Fri 6/1121:30
LHR
-
SYD
2 stops35h 50m
China Southern
Sun 6/1208:10
SYD
-
LHR
1 stop45h 25m
China Southern
Deal found 30/6$1,669
Sun 30/820:25
LHR
-
SYD
1 stop33h 25m
Multiple Airlines
Tue 22/921:00
SYD
-
LHR
1 stop31h 30m
Multiple Airlines
Deal found 30/6$1,672
Tue 8/922:10
LHR
-
SYD
1 stop36h 15m
Multiple Airlines
Tue 15/921:00
SYD
-
LHR
1 stop31h 30m
Multiple Airlines
Deal found 30/6$1,674
Wed 2/921:20
LHR
-
SYD
2 stops49h 40m
China Eastern
Wed 14/1012:00
SYD
-
LHR
1 stop40h 40m
China Eastern
Deal found 30/6$1,675
Sun 5/721:20
LHR
-
SYD
3 stops49h 40m
China Eastern
Wed 29/710:05
SYD
-
LHR
3 stops41h 35m
China Eastern
Deal found 30/6$1,677
Wed 1/721:20
LHR
-
SYD
1 stop26h 40m
China Eastern
Wed 15/710:05
SYD
-
LHR
2 stops41h 35m
China Eastern
Deal found 29/6$1,678
Sun 6/912:35
LHR
-
SYD
1 stop35h 45m
Multiple Airlines
Tue 13/1016:40
SYD
-
LHR
1 stop24h 20m
Multiple Airlines
Deal found 30/6$1,679
Wed 11/1121:00
LHR
-
SYD
1 stop29h 35m
China Eastern
Mon 23/1121:30
SYD
-
LHR
1 stop31h 00m
China Eastern
Deal found 29/6$1,681
Mon 24/822:40
LHR
-
SYD
1 stop31h 10m
Multiple Airlines
Sun 30/820:35
SYD
-
LHR
1 stop47h 55m
Multiple Airlines
Deal found 30/6$1,682
Tue 3/1121:00
LHR
-
SYD
1 stop29h 35m
China Eastern
Mon 23/1121:30
SYD
-
LHR
1 stop31h 00m
China Eastern
Deal found 30/6$1,684
Mon 21/921:20
LHR
-
SYD
1 stop30h 15m
China Eastern
Mon 12/1012:00
SYD
-
LHR
1 stop40h 40m
China Eastern
Deal found 28/6$1,685

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 July 2026.

Round-trip from

$1,669

One-way from

$996

Popular in

December

Cheapest in

May

Average price

$2,592
China Southern
  • China Southern
  • 6/11-6/12
  • 3 total stops
  • 81h 15m total
  • London to Sydney
Search Deals
China Southern
  • China Southern
  • 31/8
  • 1 total stop
  • 25h 15m total
  • London to Sydney
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($217 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($87 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
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 647,157 searches. Data last updated 1 July 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 - SYD

LHRSYD

London Heathrow

Thu 29/10

21:00-13:35

1 stop29h 35m

Sydney Kingsford Smith

Sun 29/11

21:30-17:30

1 stop31h 00m

$1,909

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 16/9

22:40-19:10

2 stops35h 30m

Sydney Kingsford Smith

Mon 5/10

12:15-09:50

2 stops31h 35m

$1,920

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 11/11

17:55-19:35

2 stops38h 40m

Sydney Kingsford Smith

Sun 15/11

21:30-22:30

2 stops36h 00m

$2,142

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 15/12

08:25-10:45

2 stops39h 20m

Sydney Kingsford Smith

Fri 15/1

11:45-18:25

2 stops65h 40m

$2,149
Fastest return journey

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 9/11

13:40-22:30

1 stop21h 50m

Sydney Kingsford Smith

Mon 23/11

16:30-06:15

Nonstop24h 45m

$2,380

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 4/12

13:40-22:30

1 stop21h 50m

Sydney Kingsford Smith

Wed 3/3

16:30-06:15

Nonstop24h 45m

$2,421

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 24/12

07:10-07:15

2 stops37h 05m

Sydney Kingsford Smith

Thu 31/12

15:15-12:30

2 stops32h 15m

$2,711

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 15/7

06:30-19:10

2 stops27h 40m

Sydney Kingsford Smith

Wed 22/7

21:05-16:00

2 stops27h 55m

$3,022

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 19/8

09:30-08:15

3 stops37h 45m

Sydney Kingsford Smith

Thu 17/9

22:10-08:40

3 stops43h 30m

$3,767

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 24/8

15:05-19:35

2 stops43h 30m

Sydney Kingsford Smith

Sun 6/9

13:05-12:20

2 stops32h 15m

$4,119

Flights are sorted by cheapest return flights first.

Deals found on 27/6

Showing 1-10 of 22 resultsSorted by cheapest first
1
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.
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

How far ahead should I book a flight from London Heathrow Airport to Sydney?

Booking 27 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 $1,739). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of $2,682). 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 July 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?

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 July 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.
Singapore Airlines
8.2
Very Good
1,557 reviews
Check prices

Overall

8.2

Crew

8.6

Food

7.8

Boarding

8.3

Entertainment

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

BCN - MXP

I'm a long time SQ patron. For good reason. Had a similar trip last year and took another airline (at that time, price was the main factor). This time I took SQ as they had really good rates. No comparison. Dependable, reliable service and excellent aircraft. No issue with my special checked in item (a guitar that had to be handled differently) on my way to my destination (not this flight). In the previous mentioned other airline, they misplace my luggage upon arrival. After spending about an hour (with no effective help from that airline's agent), I managed to find it at another belt!
Singapore Airlines
8.2
Very Good
1,557 reviews
Singapore Airlines
8.2
Very Good
1,557 reviews
Check prices

Overall

8.2

Crew

8.6

Food

7.8

Boarding

8.3

Entertainment

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

BCN - MXP

I'm a long time SQ patron. For good reason. Had a similar trip last year and took another airline (at that time, price was the main factor). This time I took SQ as they had really good rates. No comparison. Dependable, reliable service and excellent aircraft. No issue with my special checked in item (a guitar that had to be handled differently) on my way to my destination (not this flight). In the previous mentioned other airline, they misplace my luggage upon arrival. After spending about an hour (with no effective help from that airline's agent), I managed to find it at another belt!
Qantas Airways
7.5
Good
1,054 reviews
Singapore Airlines
8.2
Very Good
1,557 reviews
Check prices

Overall

8.2

Crew

8.6

Food

7.8

Boarding

8.3

Entertainment

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

BCN - MXP

I'm a long time SQ patron. For good reason. Had a similar trip last year and took another airline (at that time, price was the main factor). This time I took SQ as they had really good rates. No comparison. Dependable, reliable service and excellent aircraft. No issue with my special checked in item (a guitar that had to be handled differently) on my way to my destination (not this flight). In the previous mentioned other airline, they misplace my luggage upon arrival. After spending about an hour (with no effective help from that airline's agent), I managed to find it at another belt!
China Southern
7.5
Good
155 reviews
Singapore Airlines
8.2
Very Good
1,557 reviews
Check prices

Overall

8.2

Crew

8.6

Food

7.8

Boarding

8.3

Entertainment

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

BCN - MXP

I'm a long time SQ patron. For good reason. Had a similar trip last year and took another airline (at that time, price was the main factor). This time I took SQ as they had really good rates. No comparison. Dependable, reliable service and excellent aircraft. No issue with my special checked in item (a guitar that had to be handled differently) on my way to my destination (not this flight). In the previous mentioned other airline, they misplace my luggage upon arrival. After spending about an hour (with no effective help from that airline's agent), I managed to find it at another belt!
Qatar Airways
7.3
Good
3,738 reviews
Singapore Airlines
8.2
Very Good
1,557 reviews
Check prices

Overall

8.2

Crew

8.6

Food

7.8

Boarding

8.3

Entertainment

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

BCN - MXP

I'm a long time SQ patron. For good reason. Had a similar trip last year and took another airline (at that time, price was the main factor). This time I took SQ as they had really good rates. No comparison. Dependable, reliable service and excellent aircraft. No issue with my special checked in item (a guitar that had to be handled differently) on my way to my destination (not this flight). In the previous mentioned other airline, they misplace my luggage upon arrival. After spending about an hour (with no effective help from that airline's agent), I managed to find it at another belt!
Etihad Airways
7.3
Good
1,469 reviews
Singapore Airlines
8.2
Very Good
1,557 reviews
Check prices

Overall

8.2

Crew

8.6

Food

7.8

Boarding

8.3

Entertainment

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

BCN - MXP

I'm a long time SQ patron. For good reason. Had a similar trip last year and took another airline (at that time, price was the main factor). This time I took SQ as they had really good rates. No comparison. Dependable, reliable service and excellent aircraft. No issue with my special checked in item (a guitar that had to be handled differently) on my way to my destination (not this flight). In the previous mentioned other airline, they misplace my luggage upon arrival. After spending about an hour (with no effective help from that airline's agent), I managed to find it at another belt!

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 3 daily inbound flights from London Heathrow from 14 different airlines.

  • How long is the flight from London Heathrow Airport to Sydney?

    Departing from London Heathrow Airport to Sydney will take you 29h 35m. 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?

    Air China, at $1,141, was found to be the cheapest airline from London Heathrow Airport to Sydney.Alternate airlines to your destination round-trip include China Southern and China Eastern. Air China is 44% 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 $679. Users have also found prices from $724 and $755 on China Eastern and China Southern, respectively.

  • Can I find deals for flights from Heathrow to Sydney that include hotel bookings?

    Yes. In addition to deals on Heathrow to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Sydney.

  • 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 $1,739). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of $2,682). 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.

See more FAQs

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Penrith
Manly
Katoomba
Lithgow
Cronulla
Terrigal
Randwick
Leura
Bondi Beach
Coogee

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.

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 July 2026.
China Southern flights from London Heathrow to Sydney Kingsford Smith
Singapore Airlines flights from London Heathrow to Sydney Kingsford Smith
Malaysia Airlines flights from London Heathrow to Sydney Kingsford Smith

Top 10 airlines flying from Heathrow to Sydney

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 647,157 searches. Data last updated 1 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$1,141Average$2,610FlexibilityNo cancel feeOn-time67%
Search Air China flights
China SouthernCheapest$1,229Average$1,600FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest$1,268Average$1,574FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air IndiaCheapest$1,382Average$1,957FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Qatar AirwaysCheapest$1,459Average$2,312FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Turkish AirlinesCheapest$1,464Average$1,906FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
China AirlinesCheapest$1,504Average$1,665FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Etihad AirwaysCheapest$1,507Average$2,384FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Cathay PacificCheapest$1,510Average$2,060FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Malaysia AirlinesCheapest$1,683Average$2,707FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights

Fly with Cheapflights

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.

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.