Find flights
When to book
FAQs

Cheap flights from London Heathrow Airport to Sydney, NS from C$ 943

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YQY
11 Jan — 18 Jan1
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 December 2025.

Tue 16/127:25 a.m.LHR - YQY
2 stops20h 43mAir Canada
Sat 31/112:15 p.m.YQY - LHR
2 stops41h 05mAir Canada
Deal found 11/12C$ 1,248
Tue 16/127:25 a.m.LHR - YQY
2 stops20h 43mMultiple Airlines
Sat 31/112:15 p.m.YQY - LHR
1 stop19h 05mMultiple Airlines
Deal found 11/12C$ 1,323

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 (YQY). 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 December 2025.

Round-trip from

C$ 943

Popular in

November

Cheapest in

January

Average price

C$ 1,474
Air Canada
  • Air Canada
  • 23/2-4/3
  • 4 total stops
  • 58h 58m total
  • London to Sydney
Search Deals
Highest demand for flights based on searches. 31% potential increase in price (C$ 850 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 16% potential price decrease (C$ 263 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 12 December 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Sydney that are best for you.

Fly from

Heathrow

Fly to

Sydney

Route

Depart

Return

Price

LondonSydney

LHR - YQY

LHRYQY

London Heathrow

Mon 23/2

6:50 a.m.-10:53 p.m.

2 stops20h 03m

Sydney

Wed 4/3

12:15 p.m.-7:10 a.m.

2 stops38h 55m

C$ 943

LondonSydney

LHR - YQY

LHRYQY

London Heathrow

Mon 23/2

1:45 p.m.-10:53 p.m.

2 stops37h 08m

Sydney

Sun 8/3

12:15 p.m.-8:35 p.m.

2 stops29h 20m

C$ 947

LondonSydney

LHR - YQY

LHRYQY

London Heathrow

Sat 21/2

9:00 a.m.-11:32 a.m.

2 stops54h 32m

Sydney

Sat 7/3

5:20 a.m.-8:35 p.m.

2 stops35h 15m

C$ 1,016

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

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

What is the cheapest month to book a flight from London Heathrow Airport to Sydney, Nova Scotia?

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Sydney, Nova Scotia (average of C$ 818). Flying from London Heathrow Airport to Sydney, Nova Scotia in August is currently the most expensive (average of C$ 1,436). 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.

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 (YQY), located 11.2 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 Sydney from London Heathrow on a regular basis. Booking flights from London Heathrow to Sydney should not be difficult; the airport handles an average of 0 inbound flights from London Heathrow per day.

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

    Departing from London Heathrow Airport to Sydney, Nova Scotia will take you 20h 03m. Airlines will cover a distance of 4278 km.

  • 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, Nova Scotia?

    Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Sydney, Nova Scotia (average of C$ 818). Flying from London Heathrow Airport to Sydney, Nova Scotia in August is currently the most expensive (average of C$ 1,436). 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

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.

Alternative routes for Heathrow to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Halifax flights
Gatwick to Halifax flights
Heathrow to St John flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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 makes it easy to find Heathrow to Sydney flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Sydney for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Heathrow to Sydney with no change fees?

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

Can Cheapflights notify me if prices for flights from Heathrow to Sydney become cheaper?

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

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.