Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London Heathrow Airport to Sydney from £471

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 24/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London Heathrow Airport to Sydney

Cheap return flights

Enter your travel dates to find the best prices.
China Southern Logo
21:00 - 19:40
LHR
-
SYD
37h 40m2 stops
China Southern Logo
08:45 - 18:05
SYD
-
LHR
42h 20m2 stops
£771China Southern
Mon, 6 Apr - Mon, 27 Apr
Etihad Airways Logo
19:20 - 17:55
LHR
-
SYD
35h 35m1 stop
Etihad Airways Logo
21:45 - 14:30
SYD
-
LHR
27h 45m1 stop
£774Etihad Airways
Tue, 17 Feb - Thu, 5 Mar
Multiple Airlines Logo
22:00 - 06:15
LHR
-
SYD
45h 15m2 stops
Multiple Airlines Logo
10:30 - 17:30
SYD
-
LHR
42h 00m1 stop
£776Multiple Airlines
Mon, 2 Feb - Sun, 15 Feb
China Southern Logo
19:15 - 08:25
LHR
-
SYD
28h 10m2 stops
China Southern Logo
21:45 - 19:00
SYD
-
LHR
30h 15m1 stop
£777China Southern
Sun, 19 Apr - Mon, 4 May
China Southern Logo
22:00 - 09:25
LHR
-
SYD
24h 25m1 stop
China Southern Logo
22:00 - 17:05
SYD
-
LHR
30h 05m2 stops
£777China Southern
Sat, 28 Feb - Sat, 28 Mar
China Eastern Logo
21:00 - 10:00
LHR
-
SYD
26h 00m1 stop
China Eastern Logo
12:00 - 17:30
SYD
-
LHR
40h 30m1 stop
£778China Eastern
Mon, 2 Feb - Mon, 9 Feb
Air China Logo
20:25 - 12:00
LHR
-
SYD
28h 35m1 stop
Air China Logo
20:40 - 17:50
SYD
-
LHR
32h 10m1 stop
£779Air China
Fri, 30 Jan - Thu, 12 Feb
China Eastern Logo
21:00 - 10:00
LHR
-
SYD
26h 00m1 stop
China Eastern Logo
21:30 - 17:30
SYD
-
LHR
31h 00m1 stop
£780China Eastern
Tue, 3 Feb - Tue, 10 Feb
China Southern Logo
22:00 - 13:35
LHR
-
SYD
28h 35m1 stop
China Southern Logo
15:15 - 18:35
SYD
-
LHR
38h 20m1 stop
£780China Southern
Fri, 26 Dec - Tue, 20 Jan
China Eastern Logo
21:00 - 06:30
LHR
-
SYD
22h 30m1 stop
China Eastern Logo
12:00 - 17:30
SYD
-
LHR
40h 30m1 stop
£781China Eastern
Sun, 1 Feb - Thu, 12 Feb

Air China flights from London Heathrow Airport to Sydney

Our best Air China deals on London Heathrow Airport to Sydney flight tickets
Air China
25 Dec
LHR17:40London Heathrow
34h 50m
1 stop
SYD15:30Sydney Kingsford Smith
2 Feb
SYD20:40Sydney Kingsford Smith
30h 15m
1 stop
LHR15:55London Heathrow
£777
Find similar
Air China
30 Jan
LHR20:25London Heathrow
28h 35m
1 stop
SYD12:00Sydney Kingsford Smith
12 Feb
SYD20:40Sydney Kingsford Smith
32h 10m
1 stop
LHR17:50London Heathrow
£779
Find similar
Air China
27 Feb
LHR20:25London Heathrow
32h 05m
1 stop
SYD15:30Sydney Kingsford Smith
24 May
SYD19:40Sydney Kingsford Smith
33h 50m
1 stop
LHR20:30London Heathrow
£789
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
3 Feb
LHR21:00London Heathrow
26h 00m
1 stop
SYD10:00Sydney Kingsford Smith
10 Feb
SYD21:30Sydney Kingsford Smith
31h 00m
1 stop
LHR17:30London Heathrow
£780
Find similar
China Eastern
1 Feb
LHR21:00London Heathrow
22h 30m
1 stop
SYD06:30Sydney Kingsford Smith
12 Feb
SYD12:00Sydney Kingsford Smith
40h 30m
1 stop
LHR17:30London Heathrow
£781
Find similar
China Eastern
5 Feb
LHR21:00London Heathrow
22h 30m
1 stop
SYD06:30Sydney Kingsford Smith
15 Feb
SYD21:30Sydney Kingsford Smith
31h 00m
1 stop
LHR17:30London Heathrow
£785
Find similar

momondo Fare Finder

 
Customise 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 279,928 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

Fly to

Route

Depart

Return

Price

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 6/4

21:00-19:40

2 stops37h 40m

Sydney Kingsford Smith

Mon 27/4

08:45-18:05

2 stops42h 20m

£771

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 17/2

19:20-17:55

1 stop35h 35m

Sydney Kingsford Smith

Thu 5/3

21:45-14:30

1 stop27h 45m

£774

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 2/2

22:00-06:15

2 stops45h 15m

Sydney Kingsford Smith

Sun 15/2

10:30-17:30

1 stop42h 00m

£776

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 19/4

19:15-08:25

2 stops28h 10m

Sydney Kingsford Smith

Mon 4/5

21:45-19:00

1 stop30h 15m

£777

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sat 28/2

22:00-09:25

1 stop24h 25m

Sydney Kingsford Smith

Sat 28/3

22:00-17:05

2 stops30h 05m

£777

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 2/2

21:00-10:00

1 stop26h 00m

Sydney Kingsford Smith

Mon 9/2

12:00-17:30

1 stop40h 30m

£778

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 30/1

20:25-12:00

1 stop28h 35m

Sydney Kingsford Smith

Thu 12/2

20:40-17:50

1 stop32h 10m

£779

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Tue 3/2

21:00-10:00

1 stop26h 00m

Sydney Kingsford Smith

Tue 10/2

21:30-17:30

1 stop31h 00m

£780

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Fri 26/12

22:00-13:35

1 stop28h 35m

Sydney Kingsford Smith

Tue 20/1

15:15-18:35

1 stop38h 20m

£780

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 1/2

21:00-06:30

1 stop22h 30m

Sydney Kingsford Smith

Thu 12/2

12:00-17:30

1 stop40h 30m

£781

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

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 £790. If you don’t want to visit Sydney in May, then you should wait until March to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £826.

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 £1,143. 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 £1,305.

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 £914. 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 £1,203 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 £988 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 £818 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 December 2025, prices for London Heathrow Airport to Sydney flights are approximately 8% 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

£1,002

Fastest flight time

22h 05m

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 £1,002. The best return flight deal from London Heathrow Airport to Sydney found on momondo in the last 72 hours is £1,050.
The fastest flight from London Heathrow Airport to Sydney takes 22h 05m
Direct flights go from London Heathrow Airport to Sydney every day.
There is 1 airport in Sydney. From London Heathrow Airport there are direct flights to 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 22h 05m.

  • 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?

  • 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?

  • 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
Hainan AirlinesPriceFrom £337Free CancellationRating
8.3
58 reviews
Search Hainan Airlines flights
Air ChinaPriceFrom £511Free CancellationRating
7.2
127 reviews
Search Air China flights
Turkish AirlinesPriceFrom £719Free CancellationRating
7.3
4,090 reviews
Search Turkish Airlines flights
China AirlinesPriceFrom £731Free CancellationRating
8.3
790 reviews
Search China Airlines flights
SWISSPriceFrom £740Free CancellationRating
7.5
1,810 reviews
Search SWISS flights
Austrian AirlinesPriceFrom £745Free CancellationRating
7.6
879 reviews
Search Austrian Airlines flights
Air New ZealandPriceFrom £753Free CancellationRating
8.0
552 reviews
Search Air New Zealand flights
EmiratesPriceFrom £757Free CancellationRating
8.1
3,435 reviews
Search Emirates flights
Vietnam AirlinesPriceFrom £803Free CancellationRating
7.6
216 reviews
Search Vietnam Airlines flights
LufthansaPriceFrom £829Free CancellationRating
6.8
7,626 reviews
Search Lufthansa flights

Travelling to a place near Sydney?

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

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 11/1
Sun 18/1
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia