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Cheap flights from London Heathrow Airport to Sydney from C$ 900

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SYD
11 Sep — 18 Sep1
1 adult
1 adult, Economy, 0 bags

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 12 August 2026.

Fri 25/99:20 p.m. -
3 stops49h 40m
Fri 2/1010:05 a.m. -
2 stops41h 35m
Deal found 11/8C$ 1,539
Sun 6/99:20 p.m. -
3 stops49h 40m
Wed 30/910:05 a.m. -
3 stops41h 35m
Deal found 10/8C$ 1,567
Sat 29/89:30 p.m. -
1 stop30h 00m
Tue 29/95:20 p.m. -
1 stop35h 40m
Deal found 11/8C$ 1,630
Mon 2/119:00 p.m. -
1 stop29h 35m
Fri 20/1111:10 a.m. -
3 stops41h 20m
Deal found 11/8C$ 1,651
Tue 22/97:30 p.m. -
2 stops29h 50m
Wed 7/103:35 p.m. -
2 stops26h 45m
Deal found 8/8C$ 1,659
Tue 22/97:30 p.m. -
2 stops29h 50m
Tue 6/103:35 p.m. -
2 stops26h 45m
Deal found 9/8C$ 1,662
Mon 9/116:40 p.m. -
2 stops25h 35m
Mon 23/113:15 p.m. -
2 stops27h 50m
Deal found 9/8C$ 1,691
Wed 9/96:55 p.m. -
1 stop32h 20m
Wed 16/910:15 a.m. -
1 stop39h 40m
Deal found 10/8C$ 1,694

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 12 August 2026.

Round-trip from

C$ 1,539

One-way from

C$ 900

Popular in

December

Cheapest in

May

Average price

C$ 2,202
China Eastern
  • China Eastern
  • 25/9-2/10
  • 4 total stops
  • 91h 15m total
  • London to Sydney
Search Deals
7/9
  • 7/9
  • 3 total stops
  • 40h 50m total
  • London to Sydney
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 233 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 85 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
Customize 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 629,999 searches. Data last updated 12 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 round-trip

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Tue 2/2

9:25 a.m.-7:20 p.m.

1 stop22h 55m

Sydney Kingsford Smith

Mon 8/2

3:50 p.m.-7:20 a.m.

1 stop26h 30m

C$ 1,866
Quickest round-trip

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Mon 18/1

9:25 a.m.-7:20 p.m.

1 stop22h 55m

Sydney Kingsford Smith

Mon 15/2

9:10 p.m.-12:15 p.m.

1 stop26h 05m

C$ 1,879

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Tue 12/1

9:05 p.m.-7:15 p.m.

1 stop35h 10m

Sydney Kingsford Smith

Mon 12/4

9:00 p.m.-8:00 p.m.

1 stop32h 00m

C$ 2,056

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Tue 20/10

6:10 p.m.-7:45 a.m.

2 stops27h 35m

Sydney Kingsford Smith

Mon 26/4

10:50 a.m.-5:05 p.m.

2 stops39h 15m

C$ 2,144

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Thu 10/12

4:30 p.m.-7:25 p.m.

2 stops39h 55m

Sydney Kingsford Smith

Wed 23/12

10:15 p.m.-9:05 p.m.

2 stops33h 50m

C$ 2,279

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Wed 7/10

6:55 p.m.-1:15 p.m.

1 stop32h 20m

Sydney Kingsford Smith

Sat 10/10

3:15 p.m.-5:50 p.m.

1 stop36h 35m

C$ 2,279

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Mon 31/8

6:20 p.m.-6:10 a.m.

1 stop26h 50m

Sydney Kingsford Smith

Sun 13/9

2:05 p.m.-3:25 p.m.

2 stops34h 20m

C$ 2,373

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Tue 26/1

11:00 a.m.-9:50 a.m.

1 stop35h 50m

Sydney Kingsford Smith

Tue 9/2

11:50 a.m.-7:15 a.m.

2 stops30h 25m

C$ 2,471

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Mon 19/10

12:20 p.m.-11:20 a.m.

2 stops37h 00m

Sydney Kingsford Smith

Sun 25/4

2:35 p.m.-8:20 a.m.

2 stops26h 45m

C$ 2,495

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Fri 23/10

4:15 p.m.-7:55 a.m.

1 stop29h 40m

Sydney Kingsford Smith

Thu 29/4

9:30 a.m.-7:25 a.m.

2 stops30h 55m

C$ 2,531

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Showing 1-10 of 23 resultsSorted by cheapest first
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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 round-trip 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 C$ 1,666). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of C$ 2,633). 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 12 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 to fly round-trip 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 C$ 1,908 and C$ 2,542 in September.
The cheapest round-trip price found within the last 5 days was C$ 1,539 on China Eastern (25 Sep-2 Oct).

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?

    Sydney Kingsford Smith (SYD), located 7.5 km from the city centre, is the airport you fly into when you book flights from London Heathrow to Sydney. 0 airlines have flights to Kingsford Smith from London Heathrow on a regular basis. Booking flights from London Heathrow to Sydney Kingsford Smith should not be difficult; the airport handles an average of 2 inbound flights from London Heathrow per day.

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

    For as low as C$ 1,866, Qatar Airways can have you in Sydney from London Heathrow Airport in 22h 55m. London Heathrow Airport and Sydney are separated by a distance of 17008 km. This flight may include one or multiple stops.

  • 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 vacation 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 C$ 1,666). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of C$ 2,633). 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
Bondi Beach
Penrith
Parramatta

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Why should you use Cheapflights to find cheap flight tickets from Heathrow to Sydney?

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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.

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Not ready to book yet? You can track prices for flights from Heathrow to Sydney on Cheapflights with our Price Alert feature and get notified when better prices are available.

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