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Cheap flights from London Heathrow Airport to Sydney from $725

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 20/3. 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

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Find the cheapest flights from London Heathrow Airport to Sydney

Cheap return flights

These are some of the best return flight deals from London Heathrow Airport to Sydney that have been recently found on momondo from popular airlines, departing in the coming months.
17:50 - 13:35LHR-SYD
32h 45m1 stop
21:30 - 13:55SYD-LHR
27h 25m1 stop
$1,031China Eastern
Find Deal
Wed, 5 Mar - Sun, 16 Mar
22:40 - 14:50LHR-SYD
31h 10m1 stop
19:40 - 20:30SYD-LHR
33h 50m1 stop
$1,098Air China
Find Deal
Tue, 13 May - Tue, 27 May
22:10 - 19:40LHR-SYD
36h 30m1 stop
21:45 - 18:05SYD-LHR
29h 20m2 stops
$1,119China Southern
Find Deal
Tue, 13 May - Tue, 27 May
22:10 - 19:40LHR-SYD
36h 30m1 stop
10:05 - 19:00SYD-LHR
41h 55m1 stop
$1,131China Southern
Find Deal
Tue, 20 May - Thu, 12 Jun
17:50 - 10:00LHR-SYD
29h 10m1 stop
17:00 - 13:55SYD-LHR
31h 55m2 stops
$1,258
Find Deal
Tue, 4 Mar - Tue, 25 Mar
08:45 - 19:00LHR-SYD
23h 15m1 stop
20:30 - 11:30SYD-LHR
26h 00m1 stop
$1,399Air India
Find Deal
Sat, 22 Mar - Mon, 24 Mar
08:45 - 19:00LHR-SYD
23h 15m1 stop
20:20 - 11:30SYD-LHR
25h 10m1 stop
$1,404Air India
Find Deal
Sat, 15 Mar - Sun, 30 Mar
19:20 - 18:35LHR-SYD
36h 15m1 stop
07:30 - 06:45SYD-LHR
34h 15m2 stops
$1,423Etihad Airways
Find Deal
Tue, 4 Mar - Tue, 25 Mar
09:00 - 06:25LHR-SYD
34h 25m1 stop
13:00 - 06:45SYD-LHR
28h 45m2 stops
$1,438Etihad Airways
Find Deal
Mon, 3 Mar - Mon, 24 Mar
09:00 - 18:35LHR-SYD
22h 35m1 stop
16:50 - 19:00SYD-LHR
37h 10m1 stop
$1,454
Find Deal
Mon, 10 Mar - Fri, 14 Mar

China Eastern flights from London Heathrow Airport to Sydney

Our best China Eastern deals on London Heathrow Airport to Sydney flight tickets
China Eastern
5 Mar
LHR17:50London Heathrow
32h 45m
1 stop
SYD13:35Sydney Kingsford Smith
16 Mar
SYD21:30Sydney Kingsford Smith
27h 25m
1 stop
LHR13:55London Heathrow
China Eastern
6 Mar
LHR21:00London Heathrow
26h 00m
1 stop
SYD10:00Sydney Kingsford Smith
17 Mar
SYD21:30Sydney Kingsford Smith
27h 25m
1 stop
LHR13:55London Heathrow
China Eastern
2 Mar
LHR21:00London Heathrow
29h 35m
1 stop
SYD13:35Sydney Kingsford Smith
16 Mar
SYD21:30Sydney Kingsford Smith
27h 25m
1 stop
LHR13:55London Heathrow

Air China flights from London Heathrow Airport to Sydney

Our best Air China deals on London Heathrow Airport to Sydney flight tickets
Air China
13 May
LHR22:40London Heathrow
31h 10m
1 stop
SYD14:50Sydney Kingsford Smith
27 May
SYD19:40Sydney Kingsford Smith
33h 50m
1 stop
LHR20:30London Heathrow
Air China
9 Mar
LHR20:25London Heathrow
32h 05m
1 stop
SYD15:30Sydney Kingsford Smith
20 Mar
SYD20:40Sydney Kingsford Smith
30h 15m
1 stop
LHR15:55London Heathrow
Air China
30 May
LHR20:25London Heathrow
33h 25m
1 stop
SYD14:50Sydney Kingsford Smith
17 June
SYD19:40Sydney Kingsford Smith
33h 50m
1 stop
LHR20:30London 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 cheapest month to fly to Sydney?

The month of March is, on average, the cheapest month to fly to Sydney from London Heathrow Airport, with most prices found around $1,517. If you aren’t able to travel to Sydney during the month of March, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $1,731.

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

Our data shows that Friday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $0. The most expensive day to fly to Sydney is Saturday, with ticket prices averaging around $3,159.

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 $1,976. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $2,747 on average. Flights to Sydney from London Heathrow Airport in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 $2,103 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 $1,727 on momondo.

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

There are 3 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 February 2025, prices for London Heathrow Airport to Sydney flights are approximately 27% 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

$725

Fastest flight time

22h 30m

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 $725. The best return flight deal from London Heathrow Airport to Sydney found on momondo in the last 72 hours is $1,031.
The fastest flight from London Heathrow Airport to Sydney takes 22h 30m
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?

    The distance between London Heathrow and Sydney Kingsford Smith is about 17004.5 km. A reasonable flight in good conditions will take 22h 35m.

  • 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?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. 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 you'll need for your trip to Sydney Kingsford Smith Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Sydney Kingsford Smith Airport. It is always advisable to seek 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
Air ChinaPriceFrom $637Free cancellationRating
7.1
85 reviews
Search Air China flights
China SouthernPriceFrom $994Free cancellationRating
7.6
87 reviews
Search China Southern flights
China EasternPriceFrom $1,241Free cancellationRating
7.0
126 reviews
Search China Eastern flights
China AirlinesPriceFrom $1,536Free cancellationRating
8.2
725 reviews
Search China Airlines flights
Etihad AirwaysPriceFrom $1,670Free cancellationRating
7.3
1,179 reviews
Search Etihad Airways flights
Cathay PacificPriceFrom $1,693Free cancellationRating
7.5
821 reviews
Search Cathay Pacific flights
Air IndiaPriceFrom $1,714Free cancellationRating
5.5
2,908 reviews
Search Air India flights
Malaysia AirlinesPriceFrom $1,746Free cancellationRating
7.3
263 reviews
Search Malaysia Airlines flights
EmiratesPriceFrom $1,777Free cancellationRating
8.1
3,278 reviews
Search Emirates flights
Qatar AirwaysPriceFrom $1,881Free cancellationRating
7.4
3,609 reviews
Search Qatar Airways flights
  • Qantas Airways Flights From London Heathrow Airport to Sydney

    Qantas Airways flight deals from London Heathrow Airport to Sydney start from $1,271 round-trip. Over the 7 Qantas Airways flights for this route in a normal week, average airfare is usually $1,798 round-trip - but some users have found much cheaper deals with momondo.


Travelling to a place near Sydney?

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

Flights from London to Sydney with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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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