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Cheap flights from London to Sydney from €557

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from London to Sydney

Cheap return flights

Enter your travel dates to find the best prices.
Air India Logo
09:45 - 19:05LHR  London Heathrow-SYD Sydney Kingsford Smith
24h 20m1 stop New Delhi Indira Gandhi Intl
Air India Logo
21:35 - 19:00SYD  Sydney Kingsford Smith-LHR London Heathrow
31h 25m1 stop New Delhi Indira Gandhi Intl
€927Air India
Fri, 18 Sep - Thu, 15 Oct
China Eastern Logo
21:20 - 09:00LHR  London Heathrow-SYD Sydney Kingsford Smith
26h 40m1 stop Shanghai Pu Dong
China Eastern Logo
12:00 - 18:40SYD  Sydney Kingsford Smith-LHR London Heathrow
40h 40m1 stop Shanghai Pu Dong
€958China Eastern
Wed, 30 Sep - Sat, 17 Oct
China Eastern Logo
21:20 - 09:00LHR  London Heathrow-SYD Sydney Kingsford Smith
26h 40m1 stop Shanghai Pu Dong
China Eastern Logo
21:30 - 18:40SYD  Sydney Kingsford Smith-LHR London Heathrow
31h 10m1 stop Shanghai Pu Dong
€958China Eastern
Wed, 30 Sep - Fri, 16 Oct
China Eastern Logo
21:20 - 09:00LHR  London Heathrow-SYD Sydney Kingsford Smith
26h 40m1 stop Shanghai Pu Dong
China Eastern Logo
11:00 - 18:40SYD  Sydney Kingsford Smith-LHR London Heathrow
40h 40m1 stop Shanghai Pu Dong
€962China Eastern
Mon, 21 Sep - Thu, 6 May
Multiple Airlines Logo
21:30 - 09:25LHR  London Heathrow-SYD Sydney Kingsford Smith
48h 55m2 stops Beijing Daxing Intl Guangzhou Baiyun
Multiple Airlines Logo
21:35 - 16:20SYD  Sydney Kingsford Smith-LHR London Heathrow
29h 45m2 stops Singapore Changi Istanbul
€966Multiple Airlines
Tue, 27 Oct - Fri, 20 Nov
Multiple Airlines Logo
11:45 - 06:35LHR  London Heathrow-SYD Sydney Kingsford Smith
31h 50m2 stops Amsterdam Schiphol Guangzhou Baiyun
Multiple Airlines Logo
21:00 - 17:45SYD  Sydney Kingsford Smith-LHR London Heathrow
31h 45m2 stops Haikou Meilan Intl Changsha Huanghua Intl
€973Multiple Airlines
Tue, 1 Dec - Thu, 31 Dec
China Eastern Logo
21:20 - 08:00LHR  London Heathrow-SYD Sydney Kingsford Smith
49h 40m2 stops Shanghai Pu Dong Nanjing Lukou Intl
China Eastern Logo
10:05 - 18:40SYD  Sydney Kingsford Smith-LHR London Heathrow
41h 35m2 stops Nanjing Lukou Intl Shanghai Pu Dong
€979China Eastern
Sun, 13 Sep - Sun, 27 Sep
China Eastern Logo
21:20 - 08:00LHR  London Heathrow-SYD Sydney Kingsford Smith
49h 40m3 stops Shanghai Pu Dong Xi'an Xianyang Nanjing Lukou Intl
China Eastern Logo
10:05 - 18:40SYD  Sydney Kingsford Smith-LHR London Heathrow
41h 35m3 stops Nanjing Lukou Intl Xi'an Xianyang Shanghai Hongqiao Intl
€979China Eastern
Sun, 13 Sep - Sun, 27 Sep
China Southern Logo
21:30 - 09:25LHR  London Heathrow-SYD Sydney Kingsford Smith
48h 55m2 stops Beijing Daxing Intl Guangzhou Baiyun
China Southern Logo
15:15 - 18:35SYD  Sydney Kingsford Smith-LHR London Heathrow
62h 20m2 stops Guangzhou Baiyun Beijing Daxing Intl
€1,104China Southern
Fri, 6 Nov - Sun, 29 Nov
China Southern Logo
22:00 - 09:25LHR  London Heathrow-SYD Sydney Kingsford Smith
24h 25m1 stop Guangzhou Baiyun
China Southern Logo
15:15 - 18:35SYD  Sydney Kingsford Smith-LHR London Heathrow
38h 20m1 stop Guangzhou Baiyun
€4,658China Southern
Fri, 25 Dec - Mon, 11 Jan

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Vietnam Airlines flights from London to Sydney

Our best Vietnam Airlines deals on London to Sydney flight tickets
Vietnam Airlines
5 Nov
LHR11:00London Heathrow
35h 50m
1 stop
SYD09:50Sydney Kingsford Smith
13 Nov
SYD11:50Sydney Kingsford Smith
30h 25m
1 stop
LHR07:15London Heathrow
€1,089
Vietnam Airlines
16 Sept
LHR18:55London Heathrow
32h 20m
1 stop
SYD12:15Sydney Kingsford Smith
21 Oct
SYD11:15Sydney Kingsford Smith
39h 40m
1 stop
LHR16:55London Heathrow
€1,091
Vietnam Airlines
22 Oct
LHR18:55London Heathrow
28h 20m
1 stop
SYD09:15Sydney Kingsford Smith
11 Nov
SYD11:50Sydney Kingsford Smith
30h 25m
1 stop
LHR07:15London Heathrow
€1,100

British Airways flights from London to Sydney

Our best British Airways deals on London to Sydney flight tickets
British Airways
1 Feb
LHR21:00London Heathrow
22h 55m
1 stop
SYD06:55Sydney Kingsford Smith
25 Feb
SYD11:05Sydney Kingsford Smith
29h 30m
2 stops
LHR05:35London Heathrow
€1,014
British Airways
21 Feb
LHR21:10London Heathrow
28h 15m
2 stops
SYD12:25Sydney Kingsford Smith
7 Mar
SYD16:20Sydney Kingsford Smith
24h 05m
1 stop
LHR05:25London Heathrow
€1,036
British Airways
6 Feb
LHR21:10London Heathrow
27h 55m
2 stops
SYD12:05Sydney Kingsford Smith
22 Feb
SYD16:20Sydney Kingsford Smith
24h 05m
1 stop
LHR05:25London Heathrow
€1,039

momondo Fare Finder

 
Use the filters below to find and compare flights from London to Sydney that are best for you.

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Price

Cheapest return flight
Fastest return journey

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Fri 18/9

09:45-19:05

1 stop24h 20m

Sydney Kingsford Smith

Thu 15/10

21:35-19:00

1 stop31h 25m

€927

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Wed 30/9

21:20-09:00

1 stop26h 40m

Sydney Kingsford Smith

Sat 17/10

12:00-18:40

1 stop40h 40m

€958

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Wed 30/9

21:20-09:00

1 stop26h 40m

Sydney Kingsford Smith

Fri 16/10

21:30-18:40

1 stop31h 10m

€958

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Mon 21/9

21:20-09:00

1 stop26h 40m

Sydney Kingsford Smith

Thu 6/5

11:00-18:40

1 stop40h 40m

€962

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Tue 27/10

21:30-09:25

2 stops48h 55m

Sydney Kingsford Smith

Fri 20/11

21:35-16:20

2 stops29h 45m

€966

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Tue 1/12

11:45-06:35

2 stops31h 50m

Sydney Kingsford Smith

Thu 31/12

21:00-17:45

2 stops31h 45m

€973

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Sun 13/9

21:20-08:00

2 stops49h 40m

Sydney Kingsford Smith

Sun 27/9

10:05-18:40

2 stops41h 35m

€979

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Sun 13/9

21:20-08:00

3 stops49h 40m

Sydney Kingsford Smith

Sun 27/9

10:05-18:40

3 stops41h 35m

€979

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Fri 6/11

21:30-09:25

2 stops48h 55m

Sydney Kingsford Smith

Sun 29/11

15:15-18:35

2 stops62h 20m

€1,104

LondonSydney

LHR London Heathrow - SYD Sydney Kingsford Smith

LHRSYD

London Heathrow

Fri 25/12

22:00-09:25

1 stop24h 25m

Sydney Kingsford Smith

Mon 11/1

15:15-18:35

1 stop38h 20m

€4,658

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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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?

Prices are currently typical for flights on this route.

Typical prices usually range from €905 to €1,279.
The lowest price recently found on this route was €927.

What is the cheapest month to fly to Sydney?

The month of June is another great option to travel to Sydney, with average flight prices from London averaging around €1,063.

How far in advance should I book a flight from London 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 €1,241 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 €1,092 on momondo.

Can stopping save me money on London to Sydney flights?

You could potentially save up to 50% 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 September 2026, prices for London to Sydney flights are approximately 7% cheaper 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

€557

Fastest flight time

22h 55m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat

Airports in Sydney

1 airport
The best one-way flight to Sydney from London in the past 72 hours is €557. The best return flight deal from London to Sydney found on momondo in the last 72 hours is €927.
The fastest flight from London to Sydney takes 22h 55m
Direct flights go from London to Sydney on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. There are no airlines offering direct flights..
There is 1 airport in Sydney. From London there are direct flights to Sydney Kingsford Smith (SYD).
Search flight deals

Frequently asked questions about flying from London to Sydney

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

    There are 16983.0 km between London and Sydney Kingsford Smith. Typically, this will take 22h 55m by plane in normal conditions.

  • 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 are updated 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers 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 to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model 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
China SouthernPriceFrom €807Free CancellationRating
7.3
172 reviews
Search China Southern flights

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Cronulla
Parramatta
Coogee
Terrigal
Randwick

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Sydney for you.

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

All flight searches from London to Sydney on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from London to Sydney?

momondo provides multiple filters to help you find the best flight to Sydney from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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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China Southern