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Cheap flights from London Heathrow Airport to Sydney from $605

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 11/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from London Heathrow Airport to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air India Logo
8:45 am - 7:15 pmLHR-SYD
23h 30m1 stop
Air India Logo
8:45 pm - 7:20 pmSYD-LHR
33h 35m1 stop
$959Air India
Find Deal
Mon, Feb 2 - Sun, Mar 1
China Southern Logo
9:30 pm - 8:20 pmLHR-SYD
59h 50m2 stops
China Southern Logo
9:20 am - 5:55 pmSYD-LHR
43h 35m2 stops
$961China Southern
Find Deal
Tue, Dec 30 - Thu, Jan 22
Air India Logo
10:00 pm - 7:15 pmLHR-SYD
34h 15m1 stop
Air India Logo
8:45 pm - 7:20 pmSYD-LHR
33h 35m1 stop
$973Air India
Find Deal
Sat, Feb 7 - Sun, Mar 1
China Southern Logo
10:00 pm - 9:25 amLHR-SYD
24h 25m1 stop
China Southern Logo
10:00 pm - 6:35 pmSYD-LHR
31h 35m1 stop
$979China Southern
Find Deal
Tue, Mar 17 - Tue, Mar 24
China Southern Logo
9:30 pm - 8:20 pmLHR-SYD
35h 50m2 stops
China Southern Logo
10:00 pm - 6:35 pmSYD-LHR
31h 35m1 stop
$981China Southern
Find Deal
Thu, Mar 19 - Tue, Mar 24
China Southern Logo
10:00 pm - 9:25 amLHR-SYD
24h 25m1 stop
China Southern Logo
11:25 am - 6:35 pmSYD-LHR
42h 10m2 stops
$986China Southern
Find Deal
Tue, Mar 17 - Tue, Mar 24
Multiple Airlines Logo
7:20 pm - 6:35 amLHR-SYD
24h 15m1 stop
Multiple Airlines Logo
2:25 pm - 9:55 amSYD-LHR
30h 30m2 stops
$987Multiple Airlines
Find Deal
Sat, Feb 7 - Mon, Mar 2
Air China Logo
5:40 pm - 3:30 pmLHR-SYD
34h 50m1 stop
Air China Logo
8:40 pm - 3:55 pmSYD-LHR
30h 15m1 stop
$990Air China
Find Deal
Fri, Dec 5 - Sat, Dec 13
China Southern Logo
9:30 pm - 8:20 pmLHR-SYD
35h 50m2 stops
China Southern Logo
11:25 am - 6:35 pmSYD-LHR
42h 10m2 stops
$993China Southern
Find Deal
Wed, Mar 18 - Tue, Mar 24
Multiple Airlines Logo
8:45 am - 7:15 pmLHR-SYD
23h 30m1 stop
Multiple Airlines Logo
2:25 pm - 2:55 pmSYD-LHR
35h 30m2 stops
$996Multiple Airlines
Find Deal
Mon, Feb 2 - Tue, Mar 3

Etihad Airways flights from London Heathrow Airport to Sydney

Our best Etihad Airways deals on London Heathrow Airport to Sydney flight tickets
Etihad Airways
Feb 17
LHR1:55 pmLondon Heathrow
41h 00m
1 stop
SYD5:55 pmSydney Kingsford Smith
Feb 24
SYD9:45 pmSydney Kingsford Smith
31h 25m
1 stop
LHR6:10 pmLondon Heathrow
$1,079
Find similar
Etihad Airways
Nov 26
LHR8:50 amLondon Heathrow
22h 05m
1 stop
SYD5:55 pmSydney Kingsford Smith
Dec 4
SYD9:30 pmSydney Kingsford Smith
25h 35m
1 stop
LHR12:05 pmLondon Heathrow
$1,080
Find similar
Etihad Airways
Nov 28
LHR1:55 pmLondon Heathrow
29h 40m
1 stop
SYD6:35 amSydney Kingsford Smith
Jan 13
SYD4:35 pmSydney Kingsford Smith
25h 05m
1 stop
LHR6:40 amLondon Heathrow
$1,081
Find similar

Air China flights from London Heathrow Airport to Sydney

Our best Air China deals on London Heathrow Airport to Sydney flight tickets
Air China
Dec 5
LHR5:40 pmLondon Heathrow
34h 50m
1 stop
SYD3:30 pmSydney Kingsford Smith
Dec 13
SYD8:40 pmSydney Kingsford Smith
30h 15m
1 stop
LHR3:55 pmLondon Heathrow
$990
Find similar
Air China
Dec 4
LHR8:25 pmLondon Heathrow
32h 05m
1 stop
SYD3:30 pmSydney Kingsford Smith
Dec 24
SYD8:40 pmSydney Kingsford Smith
30h 15m
1 stop
LHR3:55 pmLondon Heathrow
$1,001
Find similar
Air China
Dec 27
LHR5:40 pmLondon Heathrow
34h 50m
1 stop
SYD3:30 pmSydney Kingsford Smith
Jan 25
SYD8:40 pmSydney Kingsford Smith
32h 10m
1 stop
LHR5:50 pmLondon Heathrow
$1,035
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport 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, momondo users made 832,500 searches. Data last updated November 12, 2025.
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

Mon 2/2

8:45 am-7:15 pm

1 stop23h 30m

Sydney Kingsford Smith

Sun 3/1

8:45 pm-7:20 pm

1 stop33h 35m

$959

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 12/30

9:30 pm-8:20 pm

2 stops59h 50m

Sydney Kingsford Smith

Thu 1/22

9:20 am-5:55 pm

2 stops43h 35m

$961

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 2/7

10:00 pm-7:15 pm

1 stop34h 15m

Sydney Kingsford Smith

Sun 3/1

8:45 pm-7:20 pm

1 stop33h 35m

$973

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 3/17

10:00 pm-9:25 am

1 stop24h 25m

Sydney Kingsford Smith

Tue 3/24

10:00 pm-6:35 pm

1 stop31h 35m

$979

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 3/19

9:30 pm-8:20 pm

2 stops35h 50m

Sydney Kingsford Smith

Tue 3/24

10:00 pm-6:35 pm

1 stop31h 35m

$981

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 3/17

10:00 pm-9:25 am

1 stop24h 25m

Sydney Kingsford Smith

Tue 3/24

11:25 am-6:35 pm

2 stops42h 10m

$986

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 2/7

7:20 pm-6:35 am

1 stop24h 15m

Sydney Kingsford Smith

Mon 3/2

2:25 pm-9:55 am

2 stops30h 30m

$987

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 12/5

5:40 pm-3:30 pm

1 stop34h 50m

Sydney Kingsford Smith

Sat 12/13

8:40 pm-3:55 pm

1 stop30h 15m

$990

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 3/18

9:30 pm-8:20 pm

2 stops35h 50m

Sydney Kingsford Smith

Tue 3/24

11:25 am-6:35 pm

2 stops42h 10m

$993

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 2/2

8:45 am-7:15 pm

1 stop23h 30m

Sydney Kingsford Smith

Tue 3/3

2:25 pm-2:55 pm

2 stops35h 30m

$996

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 cheapest month to fly to Sydney?

In general, May 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 $1,064. If you are unable to visit Sydney during the month of May, then departing from London Heathrow Airport during the month March is also very affordable. Most momondo users find prices during this month for around $1,096.

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

The cheapest day to depart from London Heathrow Airport to Sydney is on a Sunday when prices can be found for as low as $1,197. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $1,333.

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 $1,245. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the evening, with an average ticket price of $1,490. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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 $1,332 when searching weeks out. 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 $1,107 on momondo.

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

There are 2 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 November 2025, prices for London Heathrow Airport to Sydney flights are approximately 15% 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 round-trip 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

Direct flights

None
There are no direct flights from London Heathrow Airport to Sydney. There are no popular flight routes from London Heathrow Airport to Sydney.
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  • How far is London Heathrow to Sydney Kingsford Smith by plane?

    London Heathrow and Sydney Kingsford Smith are 10566.1 mi apart from one another. Flights usually cover this in 22h 05m, depending on flying conditions and air traffic around both airports.

  • 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 refresh daily.

  • 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?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • 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
Airline
Rating
Free Cancellation
Price
Etihad AirwaysPriceFrom $757Free CancellationRating
7.4
1,289 reviews
Search Etihad Airways flights
China SouthernPriceFrom $792Free CancellationRating
7.5
119 reviews
Search China Southern flights
China EasternPriceFrom $866Free CancellationRating
7.2
177 reviews
Search China Eastern flights
Air IndiaPriceFrom $978Free CancellationRating
5.5
2,940 reviews
Search Air India flights
Singapore AirlinesPriceFrom $1,015Free CancellationRating
8.1
1,400 reviews
Search Singapore Airlines flights
Cathay PacificPriceFrom $1,115Free CancellationRating
7.6
1,058 reviews
Search Cathay Pacific flights
EmiratesPriceFrom $1,121Free CancellationRating
8.1
3,407 reviews
Search Emirates flights
Qatar AirwaysPriceFrom $1,139Free CancellationRating
7.4
3,661 reviews
Search Qatar Airways flights
British AirwaysPriceFrom $1,210Free CancellationRating
6.7
7,513 reviews
Search British Airways flights
American AirlinesPriceFrom $1,297Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights

  • British Airways Flights From London Heathrow Airport to Sydney

    Across 7 British Airways flights from London Heathrow Airport to Sydney this week, the average price was $1,490, with the best British Airways deals starting from $1,210 round-trip. 7,513 users have rated British Airways on momondo, with an average score of 6.7/10.

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Bondi Beach
Katoomba
Wollongong
Randwick
Coogee
Cronulla
Manly
Penrith
Leura
Lithgow
Charlestown
Terrigal
Swansea

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Sydney from London.

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?

Once you have performed a search for London to Sydney flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from London to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

An easier way to manage your Sydney trip

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