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Cheap flights from London Heathrow Airport to Sydney from £389

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 15/9. 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

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Find the cheapest flights from London Heathrow Airport to Sydney

Cheap return flights

KAYAK's recommended return flight deals from the most popular airlines that fly from London Heathrow Airport to Sydney.
Cathay Pacific Logo
22:15 - 08:40LHR-SYD
25h 25m1 stop
Cathay Pacific Logo
14:05 - 20:35SYD-LHR
39h 30m1 stop
£462Cathay Pacific
Find Deal
Tue, 8 Jul - Fri, 18 Jul
Cathay Pacific Logo
20:10 - 08:40LHR-SYD
27h 30m1 stop
Cathay Pacific Logo
21:50 - 06:15SYD-LHR
41h 25m1 stop
£517Cathay Pacific
Find Deal
Thu, 12 Jun - Fri, 27 Jun
Air China Logo
20:25 - 14:50LHR-SYD
33h 25m1 stop
Air China Logo
19:40 - 17:45SYD-LHR
31h 05m1 stop
£548Air China
Find Deal
Tue, 6 May - Tue, 27 May
China Eastern Logo
21:20 - 12:35LHR-SYD
30h 15m1 stop
China Eastern Logo
20:30 - 18:40SYD-LHR
31h 10m1 stop
£561China Eastern
Find Deal
Mon, 19 May - Wed, 4 Jun
China Southern Logo
19:15 - 08:25LHR-SYD
28h 10m2 stops
China Southern Logo
22:15 - 19:00SYD-LHR
30h 45m1 stop
£565China Southern
Find Deal
Wed, 17 Sep - Wed, 15 Oct
China Eastern Logo
21:20 - 09:00LHR-SYD
26h 40m1 stop
China Eastern Logo
12:00 - 18:40SYD-LHR
39h 40m2 stops
£569China Eastern
Find Deal
Sun, 11 May - Wed, 21 May
China Southern Logo
22:10 - 08:25LHR-SYD
25h 15m1 stop
China Southern Logo
22:15 - 19:00SYD-LHR
30h 45m1 stop
£574China Southern
Find Deal
Thu, 11 Sep - Tue, 14 Oct
Air China Logo
22:40 - 14:50LHR-SYD
31h 10m1 stop
Air China Logo
19:40 - 17:45SYD-LHR
31h 05m1 stop
£578Air China
Find Deal
Fri, 16 May - Tue, 27 May
Air India Logo
13:15 - 18:00LHR-SYD
43h 45m1 stop
Air India Logo
19:30 - 20:00SYD-LHR
33h 30m1 stop
£733Air India
Find Deal
Sat, 5 Jul - Mon, 4 Aug
Air India Logo
20:35 - 18:00LHR-SYD
36h 25m1 stop
Air India Logo
19:30 - 11:30SYD-LHR
25h 00m1 stop
£735Air India
Find Deal
Fri, 9 May - Fri, 23 May

China Eastern flights from London Heathrow Airport to Sydney

Our best China Eastern deals on London Heathrow Airport to Sydney flight tickets
China Eastern
19 May
LHR21:20London Heathrow
30h 15m
1 stop
SYD12:35Sydney Kingsford Smith
4 Jun
SYD20:30Sydney Kingsford Smith
31h 10m
1 stop
LHR18:40London Heathrow
China Eastern
11 May
LHR21:20London Heathrow
26h 40m
1 stop
SYD09:00Sydney Kingsford Smith
21 May
SYD12:00Sydney Kingsford Smith
39h 40m
2 stops
LHR18:40London Heathrow
China Eastern
14 May
LHR21:20London Heathrow
26h 40m
1 stop
SYD09:00Sydney Kingsford Smith
20 May
SYD11:20Sydney Kingsford Smith
40h 20m
3 stops
LHR18:40London Heathrow

Cathay Pacific flights from London Heathrow Airport to Sydney

Our best Cathay Pacific deals on London Heathrow Airport to Sydney flight tickets
Cathay Pacific
8 Jul
LHR22:15London Heathrow
25h 25m
1 stop
SYD08:40Sydney Kingsford Smith
18 Jul
SYD14:05Sydney Kingsford Smith
39h 30m
1 stop
LHR20:35London Heathrow
Cathay Pacific
12 Jun
LHR20:10London Heathrow
27h 30m
1 stop
SYD08:40Sydney Kingsford Smith
27 Jun
SYD21:50Sydney Kingsford Smith
41h 25m
1 stop
LHR06:15London Heathrow
Cathay Pacific
15 Apr
LHR12:20London Heathrow
22h 50m
1 stop
SYD20:10Sydney Kingsford Smith
12 May
SYD21:50Sydney Kingsford Smith
26h 25m
1 stop
LHR15:15London Heathrow

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, 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 £728. 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 £863.

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 £1,195. 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 £1,337.

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 £955. 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 £1,285 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 24 weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around £1,042 when searching 24 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 £839 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 April 2025, prices for London Heathrow Airport to Sydney flights are approximately 16% 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

£389

Fastest flight time

22h 25m

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 £389. The best return flight deal from London Heathrow Airport to Sydney found on momondo in the last 72 hours is £462.
The fastest flight from London Heathrow Airport to Sydney takes 22h 25m
Direct flights go from London Heathrow Airport to Sydney every day.
There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)

  • 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 23h 15m.

  • 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 £352Free CancellationRating
8.1
37 reviews
Search Hainan Airlines flights
SWISSPriceFrom £655Free CancellationRating
7.5
1,574 reviews
Search SWISS flights
LufthansaPriceFrom £742Free CancellationRating
6.7
6,984 reviews
Search Lufthansa flights
Turkish AirlinesPriceFrom £747Free CancellationRating
7.3
3,753 reviews
Search Turkish Airlines flights
Vietnam AirlinesPriceFrom £801Free CancellationRating
7.6
194 reviews
Search Vietnam Airlines flights
Austrian AirlinesPriceFrom £825Free CancellationRating
7.5
774 reviews
Search Austrian Airlines flights
Air FrancePriceFrom £878Free CancellationRating
7.4
1,428 reviews
Search Air France flights
Japan AirlinesPriceFrom £948Free CancellationRating
8.3
1,440 reviews
Search Japan Airlines flights
FinnairPriceFrom £949Free CancellationRating
7.6
1,269 reviews
Search Finnair flights
American AirlinesPriceFrom £982Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Travelling to a place near Sydney?

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


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