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Cheap flights from Sydney to London Heathrow Airport from C$ 655

SYD — LHR
24 Oct — 31 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to Heathrow

Tue 13/104:40 p.m. -
1 stop24h 20m
Sun 22/118:50 a.m. -
1 stop21h 55m
Deal found 24/9C$ 1,571
Sun 8/114:50 p.m. -
1 stop32h 40m
Wed 11/118:55 p.m. -
1 stop33h 50m
Deal found 21/9C$ 1,579
Fri 16/104:40 p.m. -
1 stop24h 20m
Sat 14/118:55 p.m. -
1 stop22h 35m
Deal found 22/9C$ 1,584
Sat 7/119:30 p.m. -
1 stop28h 00m
Sun 29/118:50 a.m. -
1 stop21h 55m
Deal found 20/9C$ 1,585
Mon 26/109:30 p.m. -
1 stop28h 00m
Fri 6/117:20 p.m. -
1 stop24h 10m
Deal found 23/9C$ 1,606
Sat 7/119:30 p.m. -
1 stop31h 40m
Mon 30/117:20 p.m. -
1 stop24h 10m
Deal found 20/9C$ 1,610
Wed 14/1010:05 p.m. -
2 stops28h 35m
Wed 21/106:30 a.m. -
2 stops27h 40m
Deal found 20/9C$ 1,624
Fri 16/1010:05 p.m. -
2 stops34h 20m
Fri 23/106:30 p.m. -
1 stop38h 50m
Deal found 21/9C$ 1,626
Thu 8/109:35 p.m. -
1 stop47h 55m
Thu 29/108:45 a.m. -
1 stop23h 30m
Deal found 19/9C$ 1,627
Wed 7/1010:05 p.m. -
2 stops45h 45m
Thu 22/106:30 a.m. -
2 stops27h 40m
Deal found 21/9C$ 1,629

Find flight deals from Sydney to Heathrow

Round-trip from

C$ 1,571

One-way from

C$ 655

Popular in

December

Cheapest in

February

Average price

C$ 2,187
Etihad Airways
  • Etihad Airways
  • 13/10-22/11
  • 2 total stops
  • 46h 15m total
  • Sydney to London
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China Eastern
  • China Eastern
  • 8/11-31/12
  • 1 total stop
  • 31h 00m total
  • Sydney to London
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Highest demand for flights based on searches. 7% potential increase in price (C$ 227 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 90 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Sydney to London Heathrow Airport that are best for you.

Fly from

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Route

Depart

Return

Price

Cheapest round-trip

SydneyLondon

SYD Sydney Kingsford Smith - LHR London Heathrow

SYDLHR

Sydney Kingsford Smith

Tue 6/10

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

2 stops33h 00m

London Heathrow

Wed 31/12

12:00 a.m.-9:00 a.m.

Nonstop0h 00m

C$ 769

SydneyLondon

SYD Sydney Kingsford Smith - LHR London Heathrow

SYDLHR

Sydney Kingsford Smith

Sun 15/11

9:35 p.m.-9:05 p.m.

2 stops34h 30m

London Heathrow

Wed 31/12

12:00 a.m.-9:00 a.m.

Nonstop0h 00m

C$ 781

SydneyLondon

SYD Sydney Kingsford Smith - LHR London Heathrow

SYDLHR

Sydney Kingsford Smith

Wed 14/10

6:00 a.m.-4:10 p.m.

1 stop44h 10m

London Heathrow

Wed 31/12

12:00 a.m.-9:00 a.m.

Nonstop0h 00m

C$ 1,044

SydneyLondon

SYD Sydney Kingsford Smith - LHR London Heathrow

SYDLHR

Sydney Kingsford Smith

Fri 29/1

3:15 p.m.-5:20 p.m.

2 stops37h 05m

London Heathrow

Wed 31/12

12:00 a.m.-9:00 a.m.

Nonstop0h 00m

C$ 1,085

SydneyLondon

SYD Sydney Kingsford Smith - LHR London Heathrow

SYDLHR

Sydney Kingsford Smith

Mon 12/10

5:10 p.m.-7:20 p.m.

3 stops36h 10m

London Heathrow

Wed 31/12

12:00 a.m.-9:00 a.m.

Nonstop0h 00m

C$ 1,116

SydneyLondon

SYD Sydney Kingsford Smith - LHR London Heathrow

SYDLHR

Sydney Kingsford Smith

Sat 17/10

8:30 a.m.-6:20 a.m.

2 stops55h 50m

London Heathrow

Wed 31/12

12:00 a.m.-9:00 a.m.

Nonstop0h 00m

C$ 1,198

SydneyLondon

SYD Sydney Kingsford Smith - LHR London Heathrow

SYDLHR

Sydney Kingsford Smith

Tue 23/2

12:30 p.m.-9:10 a.m.

3 stops31h 40m

London Heathrow

Wed 31/12

12:00 a.m.-9:00 a.m.

Nonstop0h 00m

C$ 1,344
Quickest round-trip

SydneyLondon

SYD Sydney Kingsford Smith - LHR London Heathrow

SYDLHR

Sydney Kingsford Smith

Thu 24/12

10:20 p.m.-5:20 p.m.

1 stop30h 00m

London Heathrow

Wed 31/12

12:00 a.m.-9:00 a.m.

Nonstop0h 00m

C$ 1,403

SydneyLondon

SYD Sydney Kingsford Smith - LHR London Heathrow

SYDLHR

Sydney Kingsford Smith

Tue 1/12

7:55 a.m.-9:45 a.m.

3 stops36h 50m

London Heathrow

Wed 31/12

12:00 a.m.-9:00 a.m.

Nonstop0h 00m

C$ 1,586

SydneyLondon

SYD Sydney Kingsford Smith - LHR London Heathrow

SYDLHR

Sydney Kingsford Smith

Sun 14/3

4:50 p.m.-6:40 a.m.

1 stop24h 50m

London Heathrow

Thu 20/5

9:45 p.m.-4:50 p.m.

1 stop34h 05m

C$ 1,598

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/9

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Sydney to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Sydney with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Sydney to London Heathrow Airport

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

Booking 88 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sydney to London Heathrow Airport. 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 Sydney to London Heathrow Airport?

Currently, February is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of C$ 1,568). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of C$ 2,647). 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 SYD to LHR?

When flying from Sydney to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Sydney to London Heathrow Airport?

Airfare is below average for this route at the moment.

Sydney to London Heathrow Airport flights typically cost between C$ 1,655 and C$ 2,282 in October.
The cheapest round-trip price found within the last 5 days was C$ 1,571 on Etihad Airways (13 Oct-22 Nov).

Related info for your journey

  • What airport do you fly from for flights from Sydney to London Heathrow?

    Most people fly from Sydney Kingsford Smith (SYD) if they book a flight from Sydney to London Heathrow. On average, Kingsford Smith has 2 outbound flights to London Heathrow per day from 0 airlines. Sydney Kingsford Smith is conveniently located just 7.5 km from Sydney’s city centre.

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

    A quick flight from Sydney to London Heathrow Airport can take about 24h 50m. Etihad Airways provides one of the quickest options available for as low as C$ 1,598. Sydney and London Heathrow Airport are separated by a distance of 17008 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

  • Can I find deals for business class flights from Sydney to Heathrow?

    Yes. Cheapflights offers flight deals from Sydney to Heathrow 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 Sydney to London Heathrow Airport?

    Currently, February is the cheapest month in which you can book a flight from Sydney to London Heathrow Airport (average of C$ 1,568). Flying from Sydney to London Heathrow Airport in December is currently the most expensive (average of C$ 2,647). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Gatwick
Romford
Twickenham
Ilford
Bromley
Sutton
Luton
Slough
Marlow
Cobham
Hounslow
Leamington Spa
Wembley
Northampton
Watford
High Wycombe
Stratford-upon-Avon
Moreton-in-Marsh

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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Sydney to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

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Yes, we can. To see specific flights from Sydney to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from Sydney today and book when prices fit your budget.

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