Can I get a flight from London Heathrow Airport to Sydney on Qantas Airways for under £1,251?

There are 11 flights available on Qantas Airways from London Heathrow Airport to Sydney for under £1,251. These prices can change based on many factors including date and time. To find LHR-SYD flight prices for your dates, click here.

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

Booking with Qantas Airways 40 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 with Qantas Airways?

Currently, the most affordable month to book a Qantas Airways flight from London Heathrow Airport to Sydney in May, with an average price of £1,039. Conversely, traveling with Qantas Airways from London Heathrow Airport to Sydney in July will be the most expensive, with an average cost of £1,862. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Weekly Qantas Airways flight availability from London Heathrow Airport to Sydney

The most Qantas Airways flights from LHR to SYD are scheduled on a Monday (1 on average). You will have fewer Qantas Airways flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

£854+ Qantas Airways Flights from Heathrow to Sydney

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Cheapest Qantas Airways flights from Heathrow to Sydney
Explore the most affordable Qantas Airways flight options available from Heathrow to Sydney. Find the lowest fares with prices last updated on 28 August 2026.

Sat 5/920:50 -

1 stop23h 20m

Mon 5/1015:45 -

1 stop24h 50m

Deal found 23/8£854

Sat 19/920:50 -

1 stop23h 20m

Fri 16/1014:35 -

1 stop24h 30m

Deal found 26/8£925

Wed 23/920:50 -

1 stop34h 10m

Wed 30/914:45 -

Nonstop24h 50m

Deal found 27/8£1,002

Can I get a flight from London Heathrow Airport to Sydney on Qantas Airways for under £1,251?
There are 11 flights available on Qantas Airways from London Heathrow Airport to Sydney for under £1,251. These prices can change based on many factors including date and time. To find LHR-SYD flight prices for your dates, click here.

Qantas Airways flights from Heathrow to Sydney in 2026

One-way from	£969
Return from	£925
Popular in	December
Cheapest in	May
Average price (all airlines)	£1,182

Qantas Airways
2/9
Nonstop
23h 20m total
London to Sydney

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Qantas Airways
19/9-16/10
2 total stops
47h 50m total
London to Sydney

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Highest demand for flights from London Heathrow to Sydney Kingsford Smith; 7% potential price increase.

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Best time to find cheap flights from London Heathrow to Sydney Kingsford Smith; 3% potential price drop.

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Average price for all London Heathrow to Sydney Kingsford Smith flights (one-way and round-trip).

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The best time to book a flight to Sydney with Qantas Airways is 40 days before departure. On average, fares are higher if you book 5 days before departure.

Which month is the cheapest to fly Economy class from London Heathrow Airport to Sydney?

For Economy class flights, the cheapest month to fly this route is May. The most expensive months are July and December.

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.

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Qantas Airways flights from London Heathrow Airport to Sydney (LHR - SYD)

Find Qantas Airways flight deals from Heathrow to Sydney

Cheapest Qantas Airways flights from Heathrow to SydneyExplore the most affordable Qantas Airways flight options available from Heathrow to Sydney. Find the lowest fares with prices last updated on 28 August 2026.

Explore the most affordable Qantas Airways flight options available from Heathrow to Sydney. Find the lowest fares with prices last updated on 28 August 2026.

Best Qantas Airways flights from Heathrow to SydneyDiscover carefully curated Qantas Airways flight deals from Heathrow to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 August 2026.

Discover carefully curated Qantas Airways flight deals from Heathrow to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 August 2026.

Direct Qantas Airways flights from Heathrow to SydneyExplore direct Qantas Airways flight options from Heathrow to Sydney based on user searches, and compare prices and availability for your desired travel dates. Data last updated 28 August 2026.

Explore direct Qantas Airways flight options from Heathrow to Sydney based on user searches, and compare prices and availability for your desired travel dates. Data last updated 28 August 2026.

Last-minute Qantas Airways flights from Heathrow to SydneyDiscover last-minute Qantas Airways flight deals from Heathrow to Sydney. Data last updated 28 August 2026 and is based on user searches.

Discover last-minute Qantas Airways flight deals from Heathrow to Sydney. Data last updated 28 August 2026 and is based on user searches.

One-way Qantas Airways flights to SydneySearch for one-way Qantas Airways flight options to Sydney. Find affordable one-way fares based on user searches. Data last updated 28 August 2026.

Search for one-way Qantas Airways flight options to Sydney. Find affordable one-way fares based on user searches. Data last updated 28 August 2026.

Can I get a flight from London Heathrow Airport to Sydney on Qantas Airways for under £1,251?

Qantas Airways flights from Heathrow to Sydney in 2026

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Cheapest in

Average price (all airlines)

When is the best time to book a flight to Sydney with Qantas Airways?

The best time to book a flight to Sydney with Qantas Airways is 40 days before departure. On average, fares are higher if you book 5 days before departure.

Which month is the cheapest to fly Economy class from London Heathrow Airport to Sydney?

For Economy class flights, the cheapest month to fly this route is May. The most expensive months are July and December.

Weekly Qantas Airways flight availability from London Heathrow Airport to Sydney

The most Qantas Airways flights from LHR to SYD are scheduled on a Monday (1 on average). You will have fewer Qantas Airways flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Sydney by month

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

Temperature in Sydney by month

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.

Browse thousands of different options on Cheapflights for your next trip

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Fly from Heathrow to Sydney on another airline

Consider alternative airlines that service the Sydney area. Flight routes are based on user searches made on Cheapflights and were last updated on 28 August 2026.

Other Qantas Airways flights from Heathrow

Browse through other Qantas Airways flights departing from Heathrow. Flight routes are based on user searches made on Cheapflights and were last updated on 28 August 2026.

Complete your trip

Complete your trip to Sydney by adding a car hire and/or hotel booking to your travel itinerary.

Other airlines servicing Heathrow and Sydney

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Other popular destinations in South Pacific

If Sydney is not for you, choose from these other destinations located in South Pacific. Flight routes are based on user searches made on Cheapflights and were last updated on 28 August 2026.

Popular flights with Qantas Airways

Browse through some of the most popular routes that Qantas Airways offers at this time. Flights are based on user searches made on Cheapflights and were last updated on 28 August 2026.

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Cheapest Qantas Airways flights from Heathrow to Sydney
Explore the most affordable Qantas Airways flight options available from Heathrow to Sydney. Find the lowest fares with prices last updated on 28 August 2026.

Best Qantas Airways flights from Heathrow to Sydney
Discover carefully curated Qantas Airways flight deals from Heathrow to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 August 2026.

Direct Qantas Airways flights from Heathrow to Sydney
Explore direct Qantas Airways flight options from Heathrow to Sydney based on user searches, and compare prices and availability for your desired travel dates. Data last updated 28 August 2026.

Last-minute Qantas Airways flights from Heathrow to Sydney
Discover last-minute Qantas Airways flight deals from Heathrow to Sydney. Data last updated 28 August 2026 and is based on user searches.

One-way Qantas Airways flights to Sydney
Search for one-way Qantas Airways flight options to Sydney. Find affordable one-way fares based on user searches. Data last updated 28 August 2026.