Which stopover airport offers the lowest fares from London Heathrow Airport to Sydney?

Flights via Beijing (PKX) offer the lowest average return price of £681.

How many flights depart from London Heathrow Airport to Sydney on average per day?

As of September 2025, 3 flights take off from London Heathrow Airport and land in Sydney each day. The most common flight departure time for this route is 21:00, with 100% of daily flights taking off in the evening.

How many flights depart from London Heathrow Airport to Sydney on average per week?

21 flights are operational weekly from London Heathrow Airport to Sydney as of September 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

Which stopover airport has the shortest travel time from London Heathrow Airport to Sydney?

Flights connecting via Singapore (SIN) have the shortest average one-way travel time: 23h 21m.

Which stopover airport has the shortest connection time from London Heathrow Airport to Sydney?

Dubai (DXB) has the shortest average stopover time for this route: 2h 25m.

Which airlines fly to Sydney?

China Southern, Etihad Airways and Singapore Airlines are the top three most popular airlines that fly to Sydney from London Heathrow Airport according to our data. China Southern is the first choice among our users, with 29% of people opting to fly with this airline when travelling to Sydney. Keep in mind that there are 32 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from London Heathrow to Sydney Kingsford Smith?

China Southern, Tianjin Airlines, and Air China are the most popular carriers operating from London Heathrow to Sydney Kingsford Smith

Which airport is the most popular for stopovers for flights between London Heathrow Airport and Sydney?

Hong Kong (HKG) was the most common stop: 16% of momondo users choosing one-stop flights on this route connected there.

When did momondo last update prices for flights from London Heathrow Airport to Sydney Kingsford Smith Airport?

Prices for flights from London Heathrow Airport to Sydney Kingsford Smith Airport were last updated today.

How many operators does momondo search for flights from London Heathrow Airport to Sydney Kingsford Smith Airport?

As of September 2025, there are 32 operators available to choose from for flights from London Heathrow Airport to Sydney Kingsford Smith Airport.

How old do you have to be to fly from London Heathrow Airport to Sydney Kingsford Smith Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£425 Cheap Flights from London Heathrow Airport to Sydney in 2025

Q: What is the typical price of a round-trip flight between London Heathrow Airport and Sydney?

Prices are currently low for flights on this route. Typical prices usually range from £777 to £980. The lowest price recently found on this route was £711.

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Find the cheapest flights from London Heathrow Airport to Sydney

Round-trip

One-way

Last minute

Direct

Cheap return flights

21:00 - 20:25LHR-SYD

37h 25m2 stops

11:25 - 14:00SYD-LHR

37h 35m2 stops

£711China Southern

Find Deal

Tue, 14 Oct - Tue, 28 Oct

21:00 - 20:25LHR-SYD

37h 25m2 stops

11:25 - 18:35SYD-LHR

42h 10m1 stop

£714China Southern

Find Deal

Tue, 21 Oct - Mon, 27 Oct

21:30 - 09:25LHR-SYD

48h 55m2 stops

09:20 - 17:55SYD-LHR

43h 35m2 stops

£715China Southern

Find Deal

Wed, 29 Oct - Thu, 20 Nov

22:00 - 20:20LHR-SYD

35h 20m1 stop

15:15 - 18:35SYD-LHR

38h 20m1 stop

£717China Southern

Find Deal

Tue, 2 Dec - Sun, 18 Jan

22:00 - 20:20LHR-SYD

35h 20m1 stop

22:00 - 18:35SYD-LHR

31h 35m1 stop

£718China Southern

Find Deal

Tue, 2 Dec - Sun, 18 Jan

21:20 - 09:00LHR-SYD

26h 40m1 stop

21:30 - 17:30SYD-LHR

31h 00m1 stop

£721China Eastern

Find Deal

Mon, 22 Sep - Tue, 28 Oct

20:25 - 18:50LHR-SYD

35h 25m3 stops

20:05 - 15:25SYD-LHR

30h 20m2 stops

£724

Find Deal

Sun, 26 Oct - Tue, 11 Nov

21:00 - 11:00LHR-SYD

51h 00m3 stops

12:20 - 17:30SYD-LHR

64h 10m3 stops

£724China Eastern

Find Deal

Sun, 26 Oct - Tue, 11 Nov

21:20 - 09:30LHR-SYD

50h 10m2 stops

15:50 - 22:05SYD-LHR

40h 15m2 stops

£726

Find Deal

Sat, 4 Oct - Sat, 25 Oct

17:40 - 15:30LHR-SYD

34h 50m1 stop

20:40 - 15:55SYD-LHR

30h 15m1 stop

£729Air China

Find Deal

Wed, 3 Dec - Sun, 18 Jan

China Southern flights from London Heathrow Airport to Sydney

Our best China Southern deals on London Heathrow Airport to Sydney flight tickets

China Southern

14 Oct

LHR21:00London Heathrow

37h 25m

2 stops

SYD20:25Sydney Kingsford Smith

28 Oct

SYD11:25Sydney Kingsford Smith

37h 35m

2 stops

LHR14:00London Heathrow

£711

Find similar

China Southern

21 Oct

LHR21:00London Heathrow

37h 25m

2 stops

SYD20:25Sydney Kingsford Smith

27 Oct

SYD11:25Sydney Kingsford Smith

42h 10m

1 stop

LHR18:35London Heathrow

£714

Find similar

China Southern

29 Oct

LHR21:30London Heathrow

48h 55m

2 stops

SYD09:25Sydney Kingsford Smith

20 Nov

SYD09:20Sydney Kingsford Smith

43h 35m

2 stops

LHR17:55London Heathrow

£715

Find similar

China Eastern flights from London Heathrow Airport to Sydney

Our best China Eastern deals on London Heathrow Airport to Sydney flight tickets

China Eastern

22 Sept

LHR21:20London Heathrow

26h 40m

1 stop

SYD09:00Sydney Kingsford Smith

28 Oct

SYD21:30Sydney Kingsford Smith

31h 00m

1 stop

LHR17:30London Heathrow

£721

Find similar

China Eastern

17 Sept

LHR21:20London Heathrow

26h 40m

1 stop

SYD09:00Sydney Kingsford Smith

10 Oct

SYD12:00Sydney Kingsford Smith

40h 40m

1 stop

LHR18:40London Heathrow

£724

Find similar

China Eastern

26 Oct

LHR21:00London Heathrow

51h 00m

3 stops

SYD11:00Sydney Kingsford Smith

11 Nov

SYD12:20Sydney Kingsford Smith

64h 10m

3 stops

LHR17:30London Heathrow

£724

Find similar

momondo Fare Finder

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

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 14/10

21:00-20:25

2 stops37h 25m

Sydney Kingsford Smith

Tue 28/10

11:25-14:00

2 stops37h 35m

£711

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 21/10

21:00-20:25

2 stops37h 25m

Sydney Kingsford Smith

Mon 27/10

11:25-18:35

1 stop42h 10m

£714

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 29/10

21:30-09:25

2 stops48h 55m

Sydney Kingsford Smith

Thu 20/11

09:20-17:55

2 stops43h 35m

£715

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 2/12

22:00-20:20

1 stop35h 20m

Sydney Kingsford Smith

Sun 18/1

15:15-18:35

1 stop38h 20m

£717

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 2/12

22:00-20:20

1 stop35h 20m

Sydney Kingsford Smith

Sun 18/1

22:00-18:35

1 stop31h 35m

£718

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 22/9

21:20-09:00

1 stop26h 40m

Sydney Kingsford Smith

Tue 28/10

21:30-17:30

1 stop31h 00m

£721

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 26/10

20:25-18:50

3 stops35h 25m

Sydney Kingsford Smith

Tue 11/11

20:05-15:25

2 stops30h 20m

£724

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 26/10

21:00-11:00

3 stops51h 00m

Sydney Kingsford Smith

Tue 11/11

12:20-17:30

3 stops64h 10m

£724

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 4/10

21:20-09:30

2 stops50h 10m

Sydney Kingsford Smith

Sat 25/10

15:50-22:05

2 stops40h 15m

£726

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 3/12

17:40-15:30

1 stop34h 50m

Sydney Kingsford Smith

Sun 18/1

20:40-15:55

1 stop30h 15m

£729

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Stopovers

Other information

What is the typical price of a round-trip flight between London Heathrow Airport and Sydney?

What is the cheapest month to fly to Sydney?

In general, March is the cheapest month to fly from London Heathrow Airport to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £720. If you don’t want to visit Sydney in March, then you should wait until May to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £799.

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart on your flight to Sydney is on a Monday when prices can be found for as low as £1,113. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,323.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the afternoon. momondo users have found flights departing from London Heathrow Airport to Sydney in the afternoon for as low as £903. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Sydney, so prices are often more expensive at around £1,218 per ticket.

What is the cheapest London Heathrow to Sydney Kingsford Smith flight route?

Fly from London Heathrow to Sydney Kingsford Smith for the best London Heathrow - Sydney Kingsford Smith flight prices

How far in advance should I book a flight to Sydney?

You are more likely to see cheaper flights to Sydney from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around £979 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from London Heathrow Airport for as low as £800 on momondo.

What cabin class options are available on London Heathrow to Sydney Kingsford Smith flights?

There are 4 cabin classes available to choose from on London Heathrow to Sydney Kingsford Smith flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have London Heathrow Airport to Sydney flight prices changed over time?

As of September 2025, prices for London Heathrow Airport to Sydney flights are approximately 13% cheaper when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap London Heathrow Airport to Sydney (LHR to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Sydney

Best price found	£940
Fastest flight time	22h 55m
Direct flights	Every day
Airports in Sydney	1 airport

The best one-way flight to Sydney from London Heathrow Airport in the past 72 hours is £940. The best return flight deal from London Heathrow Airport to Sydney found on momondo in the last 72 hours is £1,075.

The fastest flight from London Heathrow Airport to Sydney takes 22h 55m

Direct flights go from London Heathrow Airport to Sydney every day.

There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)

Search flight deals

How far is London Heathrow to Sydney Kingsford Smith by plane?
Sydney Kingsford Smith is 10566.1 mi away from London Heathrow. A reasonable flight in good conditions will take 24h 25m.
When did momondo last update prices for flights from London Heathrow Airport to Sydney Kingsford Smith Airport?
Prices for flights from London Heathrow Airport to Sydney Kingsford Smith Airport were last updated today.
How many operators does momondo search for flights from London Heathrow Airport to Sydney Kingsford Smith Airport?
As of September 2025, there are 32 operators available to choose from for flights from London Heathrow Airport to Sydney Kingsford Smith Airport.
How old do you have to be to fly from London Heathrow Airport to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from London Heathrow Airport to Sydney?
Based on momondo bookings for flights between London Heathrow Airport and Sydney, the leading plane model is Airbus A380-800, making up 67.37% of the total bookings. Other popular models include Boeing 787-9 Dreamliner with 18.68%, Boeing 777-300ER with 13.42%, and Airbus A380 with 0.53%.
What is the most popular airline from London Heathrow Airport to Sydney?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London Heathrow Airport to Sydney is China Southern (13% of total bookings). The next most popular airlines are Etihad Airways (11%), Singapore Airlines (11%), and Cathay Pacific (10%).

Best airlines flying from London Heathrow Airport to Sydney

Compare and see reviews for airlines that fly from London Heathrow Airport to Sydney with momondo

Airline	Rating	Free Cancellation	Price
Hainan Airlines	PriceFrom £333	Free Cancellation	Rating 8.2 45 reviews	Search Hainan Airlines flights
Turkish Airlines	PriceFrom £717	Free Cancellation	Rating 7.3 3,968 reviews	Search Turkish Airlines flights
Vietnam Airlines	PriceFrom £730	Free Cancellation	Rating 7.6 201 reviews	Search Vietnam Airlines flights
China Airlines	PriceFrom £731	Free Cancellation	Rating 8.3 767 reviews	Search China Airlines flights
SWISS	PriceFrom £732	Free Cancellation	Rating 7.5 1,731 reviews	Search SWISS flights
Austrian Airlines	PriceFrom £736	Free Cancellation	Rating 7.6 850 reviews	Search Austrian Airlines flights
Air New Zealand	PriceFrom £760	Free Cancellation	Rating 8.0 505 reviews	Search Air New Zealand flights
Lufthansa	PriceFrom £820	Free Cancellation	Rating 6.8 7,409 reviews	Search Lufthansa flights
United Airlines	PriceFrom £860	Free Cancellation	Rating 7.4 8,937 reviews	Search United Airlines flights
Air Canada	PriceFrom £885	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights

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Why use momondo?

Why should I use momondo to find a flight deal from London to Sydney?

It is quick and easy to find London to Sydney flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sydney that suits you.

Can I find flights from London to Sydney with flexible booking policies on momondo?

momondo does allow users to show only those flights to Sydney from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to Sydney?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Sydney.

I’m not ready to book a flight from London to Sydney right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Sydney from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Sydney trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Cheap flights from London Heathrow Airport to Sydney from £425

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Sydney departing on 2/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

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Find the cheapest flights from London Heathrow Airport to Sydney

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

China Southern flights from London Heathrow Airport to Sydney

Our best China Southern deals on London Heathrow Airport to Sydney flight tickets

China Eastern flights from London Heathrow Airport to Sydney

Our best China Eastern deals on London Heathrow Airport to Sydney flight tickets

momondo Fare Finder

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

See travel insights to Sydney from

How to get the cheapest flight ticket from London Heathrow Airport to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between London Heathrow Airport and Sydney?

What is the cheapest month to fly to Sydney?

What is the cheapest day to depart on your flight to Sydney?

What is the cheapest time of day to depart on your flight to Sydney?

What is the cheapest London Heathrow to Sydney Kingsford Smith flight route?

Fly from London Heathrow to Sydney Kingsford Smith for the best London Heathrow - Sydney Kingsford Smith flight prices

How far in advance should I book a flight to Sydney?

What cabin class options are available on London Heathrow to Sydney Kingsford Smith flights?

There are 4 cabin classes available to choose from on London Heathrow to Sydney Kingsford Smith flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have London Heathrow Airport to Sydney flight prices changed over time?

As of September 2025, prices for London Heathrow Airport to Sydney flights are approximately 13% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from London Heathrow to Sydney Kingsford Smith?

China Southern, Tianjin Airlines, and Air China are the most popular carriers operating from London Heathrow to Sydney Kingsford Smith

Which airlines fly to Sydney?

Which airport is the most popular for stopovers for flights between London Heathrow Airport and Sydney?

Hong Kong (HKG) was the most common stop: 16% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport offers the lowest fares from London Heathrow Airport to Sydney?

Flights via Beijing (PKX) offer the lowest average return price of £681.

Which stopover airport has the shortest travel time from London Heathrow Airport to Sydney?

Flights connecting via Singapore (SIN) have the shortest average one-way travel time: 23h 21m.

Which stopover airport has the shortest connection time from London Heathrow Airport to Sydney?

Dubai (DXB) has the shortest average stopover time for this route: 2h 25m.

How many flights depart from London Heathrow Airport to Sydney on average per day?

As of September 2025, 3 flights take off from London Heathrow Airport and land in Sydney each day. The most common flight departure time for this route is 21:00, with 100% of daily flights taking off in the evening.

How many flights depart from London Heathrow Airport to Sydney on average per week?

21 flights are operational weekly from London Heathrow Airport to Sydney as of September 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

When to book flights from London Heathrow Airport to Sydney

Cheap London Heathrow Airport to Sydney (LHR to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Sydney

Best price found

Fastest flight time

Direct flights

Airports in Sydney

How far is London Heathrow to Sydney Kingsford Smith by plane?

When did momondo last update prices for flights from London Heathrow Airport to Sydney Kingsford Smith Airport?

How many operators does momondo search for flights from London Heathrow Airport to Sydney Kingsford Smith Airport?

How old do you have to be to fly from London Heathrow Airport to Sydney Kingsford Smith Airport?

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

What is the most popular plane model from London Heathrow Airport to Sydney?

What is the most popular airline from London Heathrow Airport to Sydney?

Best airlines flying from London Heathrow Airport to Sydney

Compare and see reviews for airlines that fly from London Heathrow Airport to Sydney with momondo

Travelling to a place near Sydney?

Why use momondo?

Why should I use momondo to find a flight deal from London to Sydney?

Can I find flights from London to Sydney with flexible booking policies on momondo?

How can momondo help me find flights from London to Sydney?

I’m not ready to book a flight from London to Sydney right now. Can momondo alert me if prices change?

An easier way to manage your Sydney trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Airports servicing New South Wales