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Cheap flights from London Heathrow Airport to Sydney from $908

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 20/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SYD
31 Aug — 7 Sep1
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 June, booked 28 days in advance, depart on a Monday or Tuesday 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 August 2026.

Tue 24/1121:30
LHR
-
SYD
2 stops29h 05m
China Southern
Sun 21/222:10
SYD
-
LHR
1 stop31h 25m
China Southern
Deal found 1/8$1,628
Wed 16/921:20
LHR
-
SYD
1 stop26h 40m
China Eastern
Fri 2/1020:30
SYD
-
LHR
1 stop31h 10m
China Eastern
Deal found 1/8$1,636
Thu 12/1122:00
LHR
-
SYD
1 stop35h 20m
China Southern
Thu 10/1215:15
SYD
-
LHR
2 stops37h 40m
China Southern
Deal found 31/7$1,639
Mon 28/1221:00
LHR
-
SYD
1 stop23h 20m
China Eastern
Fri 22/112:00
SYD
-
LHR
1 stop40h 30m
China Eastern
Deal found 30/7$1,640
Sun 27/921:20
LHR
-
SYD
3 stops49h 40m
China Eastern
Sun 4/1011:05
SYD
-
LHR
3 stops41h 35m
China Eastern
Deal found 31/7$1,642
Thu 27/822:10
LHR
-
SYD
1 stop25h 15m
China Southern
Sun 13/921:45
SYD
-
LHR
2 stops53h 20m
China Southern
Deal found 30/7$1,643
Thu 27/816:35
LHR
-
SYD
2 stops34h 10m
Multiple Airlines
Thu 10/921:00
SYD
-
LHR
2 stops31h 30m
Multiple Airlines
Deal found 30/7$1,645
Wed 26/821:20
LHR
-
SYD
1 stop30h 15m
China Eastern
Wed 2/910:05
SYD
-
LHR
2 stops41h 35m
China Eastern
Deal found 30/7$1,647
Sun 13/921:20
LHR
-
SYD
1 stop26h 40m
China Eastern
Sun 20/910:05
SYD
-
LHR
3 stops65h 35m
China Eastern
Deal found 30/7$1,650
Tue 29/1217:40
LHR
-
SYD
1 stop27h 55m
Air China
Sat 23/110:30
SYD
-
LHR
1 stop42h 20m
Air China
Deal found 30/7$1,652

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 August 2026.

Round-trip from

$1,628

One-way from

$908

Popular in

December

Cheapest in

May

Average price

$2,281

Good one-way deal

$3,104 or less
China Southern
  • China Southern
  • 24/11-21/2
  • 3 total stops
  • 60h 30m total
  • London to Sydney
Search Deals
20/9
  • 20/9
  • 2 total stops
  • 35h 40m total
  • London to Sydney
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($225 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($84 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a one-way flight from London Heathrow to Sydney Kingsford Smith.
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 August 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

Mon 30/11

21:00-10:00

1 stop26h 00m

Sydney Kingsford Smith

Tue 29/12

09:20-17:30

1 stop43h 10m

$1,666

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 7/11

21:00-13:35

1 stop29h 35m

Sydney Kingsford Smith

Wed 25/11

11:10-17:30

3 stops41h 20m

$1,707

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 11/11

11:00-13:15

1 stop39h 15m

Sydney Kingsford Smith

Sun 15/11

11:50-07:15

2 stops30h 25m

$2,143

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 27/8

18:55-17:10

1 stop37h 15m

Sydney Kingsford Smith

Thu 10/9

14:35-05:35

1 stop24h 00m

$2,170

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 11/11

17:05-07:25

3 stops27h 20m

Sydney Kingsford Smith

Fri 27/11

11:45-07:40

3 stops30h 55m

$2,224
Fastest return journey

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 4/11

17:05-07:25

3 stops27h 20m

Sydney Kingsford Smith

Wed 18/11

16:30-10:30

2 stops29h 00m

$2,225

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 26/8

06:15-08:15

2 stops41h 00m

Sydney Kingsford Smith

Wed 16/9

10:15-16:55

1 stop39h 40m

$2,232

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 19/9

17:10-05:10

2 stops27h 00m

Sydney Kingsford Smith

Sun 11/10

12:40-09:00

3 stops30h 20m

$2,511

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 1/11

17:05-07:25

3 stops27h 20m

Sydney Kingsford Smith

Tue 10/11

12:10-07:40

2 stops30h 30m

$2,515

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 19/11

11:35-09:05

2 stops34h 30m

Sydney Kingsford Smith

Sun 22/11

11:50-05:55

2 stops29h 05m

$2,572

Flights are sorted by cheapest return flights first.

Deals found on 30/7

Showing 1-10 of 23 resultsSorted by cheapest first
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2
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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 $1,689). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of $2,659). 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 August 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 $1,972 and $2,639 in November.
The cheapest return price found within the last 5 days was $1,628 on China Southern (24 Nov–21 Feb).

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 August 2026.
Get a feel of what it's like to fly with Cathay Pacific,Qantas Airways, andQatar Airways 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.
Cathay Pacific
7.6
Good
1,436 reviews
Check prices

Boarding

7.9

Comfort

7.6

Food

7.3

Overall

7.6

Crew

8.1

Entertainment

7.7

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .
Cathay Pacific
7.6
Good
1,436 reviews
Cathay Pacific
7.6
Good
1,436 reviews
Check prices

Boarding

7.9

Comfort

7.6

Food

7.3

Overall

7.6

Crew

8.1

Entertainment

7.7

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .
Qantas Airways
7.5
Good
1,074 reviews
Cathay Pacific
7.6
Good
1,436 reviews
Check prices

Boarding

7.9

Comfort

7.6

Food

7.3

Overall

7.6

Crew

8.1

Entertainment

7.7

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .
Qatar Airways
7.4
Good
3,738 reviews
Cathay Pacific
7.6
Good
1,436 reviews
Check prices

Boarding

7.9

Comfort

7.6

Food

7.3

Overall

7.6

Crew

8.1

Entertainment

7.7

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .
China Southern
7.4
Good
168 reviews
Cathay Pacific
7.6
Good
1,436 reviews
Check prices

Boarding

7.9

Comfort

7.6

Food

7.3

Overall

7.6

Crew

8.1

Entertainment

7.7

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .
Etihad Airways
7.3
Good
1,499 reviews
Cathay Pacific
7.6
Good
1,436 reviews
Check prices

Boarding

7.9

Comfort

7.6

Food

7.3

Overall

7.6

Crew

8.1

Entertainment

7.7

Reviews

1 / 20
10.0
Excellent

anish,Aug 2025

HKG - KTM

Journey was way better than on the airbus from Toronto to Hongkong , as the economy seats were better .

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 2 daily inbound flights from London Heathrow from 10 different airlines.

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

    Departing from London Heathrow Airport to Sydney will take you 26h. 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 $1,067, was found to be the cheapest airline from London Heathrow Airport to Sydney.Alternate airlines to your destination round-trip include Air India and China Southern. Air China is 47% 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 $666. Users have also found prices from $701 and $727 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 $3,104, our data indicates the cheapest price to be $2,789. The most popular route (London Heathrow - Sydney Kingsford Smith), is priced around $1,232.

  • 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 $1,689). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of $2,659). 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
Katoomba
Manly
Lithgow
Cronulla
Randwick
Terrigal
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 August 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 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$1,067Average$1,829FlexibilityNo cancel feeOn-time67%
Search Air China flights
Air IndiaCheapest$1,184Average$2,221FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
China SouthernCheapest$1,206Average$1,587FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest$1,244Average$1,561FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Qatar AirwaysCheapest$1,431Average$2,646FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Qantas AirwaysCheapest$1,457Average$2,363FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
China AirlinesCheapest$1,475Average$1,626FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Etihad AirwaysCheapest$1,478Average$2,314FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Cathay PacificCheapest$1,481Average$1,986FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Malaysia AirlinesCheapest$1,651Average$2,655FlexibilityNo 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.

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