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Cheap flights from London Heathrow Airport to Sydney from C$ 937

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
22 Jul — 29 Jul1
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 22 June 2026.

Wed 9/97:30 p.m.
LHR
-
SYD
2 stops29h 50m
Austrian Airlines
Tue 6/103:35 p.m.
SYD
-
LHR
2 stops26h 45m
Austrian Airlines
Deal found 19/6C$ 1,659
Thu 5/119:00 p.m.
LHR
-
SYD
1 stop26h 00m
China Eastern
Wed 25/1112:00 p.m.
SYD
-
LHR
1 stop40h 30m
China Eastern
Deal found 17/6C$ 1,660
Sun 1/119:00 p.m.
LHR
-
SYD
1 stop26h 00m
China Eastern
Wed 25/119:30 p.m.
SYD
-
LHR
1 stop31h 00m
China Eastern
Deal found 17/6C$ 1,662
Wed 28/107:25 p.m.
LHR
-
SYD
2 stops29h 30m
Austrian Airlines
Thu 12/113:35 p.m.
SYD
-
LHR
2 stops27h 45m
Austrian Airlines
Deal found 18/6C$ 1,676
Sat 7/119:00 p.m.
LHR
-
SYD
1 stop26h 00m
China Eastern
Sat 21/119:30 p.m.
SYD
-
LHR
1 stop31h 00m
China Eastern
Deal found 19/6C$ 1,679
Sat 7/119:00 p.m.
LHR
-
SYD
1 stop29h 35m
China Eastern
Thu 26/119:30 p.m.
SYD
-
LHR
1 stop31h 00m
China Eastern
Deal found 20/6C$ 1,680
Mon 26/109:00 p.m.
LHR
-
SYD
1 stop26h 00m
China Eastern
Sun 1/119:30 p.m.
SYD
-
LHR
1 stop31h 00m
China Eastern
Deal found 21/6C$ 1,683
Sat 19/99:20 p.m.
LHR
-
SYD
2 stops49h 45m
China Eastern
Sun 11/1012:00 p.m.
SYD
-
LHR
1 stop40h 40m
China Eastern
Deal found 19/6C$ 1,688
Wed 9/99:20 p.m.
LHR
-
SYD
3 stops73h 40m
China Eastern
Wed 23/98:30 p.m.
SYD
-
LHR
1 stop31h 10m
China Eastern
Deal found 22/6C$ 1,693
Fri 13/119:00 p.m.
LHR
-
SYD
1 stop26h 00m
China Eastern
Tue 24/119:30 p.m.
SYD
-
LHR
1 stop31h 00m
China Eastern
Deal found 18/6C$ 1,694
Tue 20/109:20 p.m.
LHR
-
SYD
1 stop26h 40m
China Eastern
Sat 24/1012:00 p.m.
SYD
-
LHR
1 stop40h 30m
China Eastern
Deal found 20/6C$ 1,698

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 22 June 2026.

Round-trip from

C$ 1,659

One-way from

C$ 937

Popular in

December

Cheapest in

May

Average price

C$ 1,744
Austrian Airlines
  • Austrian Airlines
  • 9/9-6/10
  • 4 total stops
  • 56h 35m total
  • London to Sydney
Search Deals
31/8
  • 31/8
  • 2 total stops
  • 48h 15m total
  • London to Sydney
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 206 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 81 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 22 June 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
Quickest round-trip

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 2/11

10:25 a.m.-8:35 p.m.

1 stop23h 10m

Sydney Kingsford Smith

Fri 20/11

10:15 p.m.-3:25 p.m.

1 stop28h 10m

C$ 1,966

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 3/11

4:30 p.m.-7:35 p.m.

2 stops40h 05m

Sydney Kingsford Smith

Wed 18/11

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

2 stops33h 50m

C$ 2,102

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 18/7

9:20 p.m.-8:05 a.m.

3 stops49h 45m

Sydney Kingsford Smith

Sat 25/7

11:00 a.m.-6:40 p.m.

1 stop40h 40m

C$ 2,255

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 1/8

6:55 p.m.-6:50 p.m.

2 stops38h 55m

Sydney Kingsford Smith

Fri 7/8

2:50 p.m.-6:25 a.m.

1 stop24h 35m

C$ 2,280

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 2/11

6:25 a.m.-7:35 p.m.

2 stops26h 10m

Sydney Kingsford Smith

Mon 23/11

7:15 a.m.-9:45 a.m.

3 stops37h 30m

C$ 2,300

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 4/10

8:15 p.m.-12:45 p.m.

1 stop30h 30m

Sydney Kingsford Smith

Sat 31/10

10:20 p.m.-7:00 a.m.

1 stop43h 40m

C$ 2,315

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 21/8

6:55 a.m.-8:10 p.m.

2 stops28h 15m

Sydney Kingsford Smith

Mon 7/9

7:40 a.m.-6:20 a.m.

1 stop31h 40m

C$ 2,450

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 8/11

8:05 p.m.-10:20 a.m.

2 stops27h 15m

Sydney Kingsford Smith

Sun 4/4

11:45 a.m.-6:30 a.m.

2 stops51h 45m

C$ 2,511

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 19/7

9:20 p.m.-8:00 a.m.

3 stops49h 40m

Sydney Kingsford Smith

Sun 26/7

10:05 a.m.-6:40 p.m.

3 stops41h 35m

C$ 2,556

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 27/10

4:30 p.m.-7:35 p.m.

2 stops40h 05m

Sydney Kingsford Smith

Wed 25/11

7:15 a.m.-9:45 a.m.

3 stops37h 30m

C$ 2,596

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/6

Showing 1-10 of 21 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$ 1,694). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of C$ 2,598). 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 22 June 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?

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$ 1,915, SWISS can have you in Sydney from London Heathrow Airport in 25h 35m. 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$ 1,694). Flying from London Heathrow Airport to Sydney in December is currently the most expensive (average of C$ 2,598). 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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