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Cheap flights from London to Sydney from $754

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 to Sydney departing on 5/3. 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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Cheap return flights

Enter your travel dates to find the best prices.
Cathay Pacific Logo
16:50 - 12:00
LHR
-
SYD
32h 10m
1 stop
Cathay Pacific Logo
15:15 - 15:00
SYD
-
LHR
34h 45m
1 stop
$1,388Cathay Pacific
Thu, 5 Mar - Sun, 22 Mar
Air India Logo
20:35 - 18:25
LHR
-
SYD
36h 50m
1 stop
Air India Logo
20:00 - 19:00
SYD
-
LHR
32h 00m
1 stop
$1,389Air India
Sun, 7 Jun - Sun, 5 Jul
China Eastern Logo
21:00 - 13:35
LHR
-
SYD
29h 35m
1 stop
China Eastern Logo
13:30 - 17:30
SYD
-
LHR
39h 00m
3 stops
$1,391China Eastern
Wed, 11 Mar - Sat, 21 Mar
Multiple Airlines Logo
20:20 - 20:20
LGW
-
SYD
37h 00m
2 stops
Multiple Airlines Logo
12:00 - 06:30
SYD
-
LGW
29h 30m
1 stop
$1,391Multiple Airlines
Tue, 3 Mar - Tue, 10 Mar
Etihad Airways Logo
13:55 - 06:35
LHR
-
SYD
29h 40m
1 stop
Etihad Airways Logo
21:45 - 14:30
SYD
-
LHR
27h 45m
1 stop
$1,392Etihad Airways
Wed, 4 Mar - Fri, 13 Mar
China Eastern Logo
10:30 - 07:20
LGW
-
SYD
33h 50m
3 stops
China Eastern Logo
12:00 - 14:00
SYD
-
LGW
37h 00m
1 stop
$1,393China Eastern
Wed, 11 Mar - Thu, 26 Mar
China Southern Logo
21:00 - 12:35
LHR
-
SYD
30h 35m
2 stops
China Southern Logo
08:45 - 16:15
SYD
-
LHR
40h 30m
2 stops
$1,395China Southern
Thu, 23 Apr - Sat, 9 May
Etihad Airways Logo
19:20 - 06:35
LHR
-
SYD
24h 15m
1 stop
Etihad Airways Logo
21:45 - 14:30
SYD
-
LHR
27h 45m
1 stop
$1,398Etihad Airways
Mon, 2 Mar - Fri, 13 Mar
Emirates Logo
21:05 - 06:05
STN
-
SYD
24h 00m
1 stop
Emirates Logo
20:10 - 12:55
SYD
-
STN
25h 45m
1 stop
$1,446Emirates
Mon, 6 Apr - Mon, 27 Apr
Emirates Logo
14:55 - 22:05
STN
-
SYD
22h 10m
1 stop
Emirates Logo
20:10 - 12:55
SYD
-
STN
25h 45m
1 stop
$1,475Emirates
Fri, 1 May - Mon, 25 May

Cathay Pacific flights from London to Sydney

Our best Cathay Pacific deals on London to Sydney flight tickets
Cathay Pacific
5 Mar
LHR16:50London Heathrow
32h 10m
1 stop
SYD12:00Sydney Kingsford Smith
22 Mar
SYD15:15Sydney Kingsford Smith
34h 45m
1 stop
LHR15:00London Heathrow
$1,388
Cathay Pacific
18 Feb
LHR20:15London Heathrow
24h 00m
1 stop
SYD07:15Sydney Kingsford Smith
18 Mar
SYD22:20Sydney Kingsford Smith
32h 50m
1 stop
LHR20:10London Heathrow
$1,445
Cathay Pacific
18 Feb
LHR17:50London Heathrow
28h 45m
1 stop
SYD09:35Sydney Kingsford Smith
19 Mar
SYD22:20Sydney Kingsford Smith
27h 40m
1 stop
LHR15:00London Heathrow
$1,492

Air India flights from London to Sydney

Our best Air India deals on London to Sydney flight tickets
Air India
7 June
LHR20:35London Heathrow
36h 50m
1 stop
SYD18:25Sydney Kingsford Smith
5 July
SYD20:00Sydney Kingsford Smith
32h 00m
1 stop
LHR19:00London Heathrow
$1,389
Air India
17 Feb
LHR22:00London Heathrow
34h 15m
1 stop
SYD19:15Sydney Kingsford Smith
24 Mar
SYD20:45Sydney Kingsford Smith
25h 45m
1 stop
LHR11:30London Heathrow
$1,593
Air India
18 Feb
LHR22:00London Heathrow
34h 15m
1 stop
SYD19:15Sydney Kingsford Smith
25 Mar
SYD20:45Sydney Kingsford Smith
34h 45m
1 stop
LHR20:30London Heathrow
$1,614

momondo Fare Finder

 
Customise your flight search to find flights from London 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 78,305 searches. Data last updated 8 February 2026.
Use the filters below to find and compare flights from London to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 5/3

16:50-12:00

1 stop32h 10m

Sydney Kingsford Smith

Sun 22/3

15:15-15:00

1 stop34h 45m

$1,388

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Sun 7/6

20:35-18:25

1 stop36h 50m

Sydney Kingsford Smith

Sun 5/7

20:00-19:00

1 stop32h 00m

$1,389

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 11/3

21:00-13:35

1 stop29h 35m

Sydney Kingsford Smith

Sat 21/3

13:30-17:30

3 stops39h 00m

$1,391

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Tue 3/3

20:20-20:20

2 stops37h 00m

Sydney Kingsford Smith

Tue 10/3

12:00-06:30

1 stop29h 30m

$1,391

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Wed 4/3

13:55-06:35

1 stop29h 40m

Sydney Kingsford Smith

Fri 13/3

21:45-14:30

1 stop27h 45m

$1,392

LondonSydney

LGW - SYD

LGWSYD

London Gatwick

Wed 11/3

10:30-07:20

3 stops33h 50m

Sydney Kingsford Smith

Thu 26/3

12:00-14:00

1 stop37h 00m

$1,393

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Thu 23/4

21:00-12:35

2 stops30h 35m

Sydney Kingsford Smith

Sat 9/5

08:45-16:15

2 stops40h 30m

$1,395

LondonSydney

LHR - SYD

LHRSYD

London Heathrow

Mon 2/3

19:20-06:35

1 stop24h 15m

Sydney Kingsford Smith

Fri 13/3

21:45-14:30

1 stop27h 45m

$1,398

LondonSydney

STN - SYD

STNSYD

London Stansted

Mon 6/4

21:05-06:05

1 stop24h 00m

Sydney Kingsford Smith

Mon 27/4

20:10-12:55

1 stop25h 45m

$1,446

LondonSydney

STN - SYD

STNSYD

London Stansted

Fri 1/5

14:55-22:05

1 stop22h 10m

Sydney Kingsford Smith

Mon 25/5

20:10-12:55

1 stop25h 45m

$1,475

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 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 and Sydney?

What is the cheapest month to fly to Sydney?

The month of May is, on average, the cheapest month to fly to Sydney from London, with most prices found around $1,502. If you aren’t able to travel to Sydney during the month of May, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $1,581.

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

Our data shows that Wednesday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $2,132. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $3,181.

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

Fly from London Heathrow to Sydney Kingsford Smith for the best London - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,903 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 for as low as $1,695 on momondo.

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

There are 2 cabin classes available to choose from on London 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.

Can stopping save me money on London to Sydney flights?

You could potentially save up to 4% on your flight if you consider stops on a London to Sydney flight.

How have London to Sydney flight prices changed over time?

As of February 2026, prices for London to Sydney flights are approximately 6% more expensive when compared to flights at the same time last year.

When to book flights from London to Sydney

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

Cheap London to Sydney (LON to SYD) flight deals and tips

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

Best price found

$1,747

Fastest flight time

21h 25m

Direct flights

Every day

Airports in Sydney

1 airport
The best flight deal from London to Sydney found on momondo in the last 72 hours is $1,747
The fastest flight from London to Sydney takes 21h 25m
Direct flights go from London to Sydney every day.
There is 1 airport in Sydney. From London there are direct flights to Sydney Kingsford Smith (SYD).
Search flight deals

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

    A flight from London to Sydney Kingsford Smith will travel around 16983.0 km. A reasonable flight in good conditions will take 21h 25m.

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

    Prices for flights from London to Sydney Kingsford Smith Airport refresh daily.

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

  • How old do you have to be to fly from London 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 stopovers. It is recommended that you verify with the airline you are booking with for travel from London 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 licence 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 to Sydney?

  • What is the most popular airline from London to Sydney?

Best airlines flying from London to Sydney

Compare and see reviews for airlines that fly from London to Sydney with momondo
Airline
Rating
Free cancellation
Price
Air ChinaPriceFrom $991Free cancellationRating
7.2
138 reviews
Search Air China flights
China EasternPriceFrom $1,017Free cancellationRating
7.2
192 reviews
Search China Eastern flights
China SouthernPriceFrom $1,031Free cancellationRating
7.3
137 reviews
Search China Southern flights
Air IndiaPriceFrom $1,358Free cancellationRating
5.5
2,966 reviews
Search Air India flights
Malaysia AirlinesPriceFrom $1,434Free cancellationRating
7.3
293 reviews
Search Malaysia Airlines flights
Turkish AirlinesPriceFrom $1,438Free cancellationRating
7.3
4,210 reviews
Search Turkish Airlines flights
Etihad AirwaysPriceFrom $1,480Free cancellationRating
7.3
1,389 reviews
Search Etihad Airways flights
China AirlinesPriceFrom $1,530Free cancellationRating
8.3
803 reviews
Search China Airlines flights
British AirwaysPriceFrom $1,565Free cancellationRating
6.7
7,721 reviews
Search British Airways flights
Cathay PacificPriceFrom $1,570Free cancellationRating
7.6
1,160 reviews
Search Cathay Pacific flights

  • Qantas Airways Flights From London to Sydney

    The lowest priced Qantas Airways flight from London to Sydney from the last 72 hours was $1,664. Generally, Qantas Airways has 7 flights on this route every week with an average price of $2,422. Qantas Airways is rated 7.5/10 by our users.

Travelling to a place near Sydney?

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

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Sydney . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for London to Sydney flights to just show those with flexible booking policies.

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?

Of course. momondo tracks the price of London to Sydney flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Sydney trip

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