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Cheap flights from London to Sydney from £321

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 9/9. 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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Cheap return flights

China Eastern Logo
17:00 - 13:35LGW-SYD
33h 35m1 stop
China Eastern Logo
21:30 - 14:00SYD-LGW
27h 30m1 stop
£555China Eastern
Find Deal
Wed, 12 Nov - Sun, 16 Nov
China Southern Logo
21:30 - 20:20LHR-SYD
35h 50m2 stops
China Southern Logo
22:00 - 17:55SYD-LHR
30h 55m2 stops
£561China Southern
Find Deal
Thu, 6 Nov - Thu, 13 Nov
China Southern Logo
19:15 - 08:25LHR-SYD
28h 10m2 stops
China Southern Logo
22:00 - 17:55SYD-LHR
30h 55m2 stops
£564China Southern
Find Deal
Wed, 17 Sep - Thu, 13 Nov
China Southern Logo
21:30 - 20:20LHR-SYD
35h 50m2 stops
China Southern Logo
22:00 - 17:55SYD-LHR
30h 55m2 stops
£574China Southern
Find Deal
Thu, 6 Nov - Thu, 13 Nov
China Eastern Logo
17:00 - 10:00LGW-SYD
30h 00m1 stop
China Eastern Logo
12:00 - 14:00SYD-LGW
37h 00m1 stop
£590China Eastern
Find Deal
Sun, 9 Nov - Tue, 18 Nov
Air China Logo
17:40 - 15:30LHR-SYD
34h 50m1 stop
Air China Logo
20:40 - 17:50SYD-LHR
32h 10m1 stop
£664Air China
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Tue, 4 Nov - Sat, 22 Nov
Air India Logo
09:45 - 18:40LHR-SYD
23h 55m1 stop
Air India Logo
20:10 - 11:30SYD-LHR
24h 20m1 stop
£665Air India
Find Deal
Mon, 11 Aug - Mon, 18 Aug
Air India Logo
09:45 - 18:40LHR-SYD
23h 55m1 stop
Air India Logo
19:30 - 11:30SYD-LHR
25h 00m1 stop
£669Air India
Find Deal
Thu, 21 Aug - Tue, 9 Sep
Emirates Logo
20:15 - 07:00STN-SYD
23h 45m1 stop
Emirates Logo
21:45 - 12:05SYD-STN
25h 20m1 stop
£966Emirates
Find Deal
Mon, 3 Nov - Thu, 13 Nov
Emirates Logo
14:05 - 07:25STN-SYD
30h 20m2 stops
Emirates Logo
21:10 - 17:45SYD-STN
31h 35m1 stop
£969Emirates
Find Deal
Mon, 3 Nov - Thu, 13 Nov

China Eastern flights from London to Sydney

Our best China Eastern deals on London to Sydney flight tickets
China Eastern
12 Nov
LGW17:00London Gatwick
33h 35m
1 stop
SYD13:35Sydney Kingsford Smith
16 Nov
SYD21:30Sydney Kingsford Smith
27h 30m
1 stop
LGW14:00London Gatwick
China Eastern
9 Nov
LGW17:00London Gatwick
30h 00m
1 stop
SYD10:00Sydney Kingsford Smith
18 Nov
SYD12:00Sydney Kingsford Smith
37h 00m
1 stop
LGW14:00London Gatwick
China Eastern
6 Nov
LGW10:30London Gatwick
40h 05m
1 stop
SYD13:35Sydney Kingsford Smith
13 Nov
SYD12:00Sydney Kingsford Smith
37h 00m
1 stop
LGW14:00London Gatwick

China Southern flights from London to Sydney

Our best China Southern deals on London to Sydney flight tickets
China Southern
6 Nov
LHR21:30London Heathrow
35h 50m
2 stops
SYD20:20Sydney Kingsford Smith
13 Nov
SYD22:00Sydney Kingsford Smith
30h 55m
2 stops
LHR17:55London Heathrow
China Southern
17 Sept
LHR19:15London Heathrow
28h 10m
2 stops
SYD08:25Sydney Kingsford Smith
13 Nov
SYD22:00Sydney Kingsford Smith
30h 55m
2 stops
LHR17:55London Heathrow
China Southern
6 Nov
LHR21:30London Heathrow
35h 50m
2 stops
SYD20:20Sydney Kingsford Smith
13 Nov
SYD22:00Sydney Kingsford Smith
30h 55m
2 stops
LHR17:55London Heathrow

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?

In general, May is the cheapest month to fly from London to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £784. If you don’t want to visit Sydney in May, then you should wait until March to fly from London, when ticket prices are also cheap, with an average price of £808.

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 £1,111. 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 because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,279.

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 to Sydney in the afternoon for as low as £896. 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 £1,212 per ticket.

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 £973 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 £798 on momondo.

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

There are 4 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 37% 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 July 2025, prices for London to Sydney flights are approximately 11% 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

£321

Fastest flight time

21h 25m

Direct flights

Every day

Airports in Sydney

1 airport
The best one-way flight to Sydney from London in the past 72 hours is £321. The best return flight deal from London to Sydney found on momondo in the last 72 hours is £555.
The fastest flight from London to Sydney takes 21h 25m
Direct flights go from London to Sydney every day.
There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)

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

    Sydney Kingsford Smith is 10552.8 mi away from London. Flights usually cover this in 21h 25m, depending on flying conditions and air traffic around both airports.

  • 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 were last updated today.

  • 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 layovers 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 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 license 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
Hainan AirlinesPriceFrom £330Free CancellationRating
8.2
41 reviews
Search Hainan Airlines flights
Turkish AirlinesPriceFrom £684Free CancellationRating
7.3
3,895 reviews
Search Turkish Airlines flights
SWISSPriceFrom £773Free CancellationRating
7.5
1,654 reviews
Search SWISS flights
Austrian AirlinesPriceFrom £774Free CancellationRating
7.6
809 reviews
Search Austrian Airlines flights
Vietnam AirlinesPriceFrom £788Free CancellationRating
7.5
194 reviews
Search Vietnam Airlines flights
LufthansaPriceFrom £821Free CancellationRating
6.8
7,207 reviews
Search Lufthansa flights
SriLankan AirlinesPriceFrom £824Free CancellationRating
6.8
74 reviews
Search SriLankan Airlines flights
Air FrancePriceFrom £832Free CancellationRating
7.5
1,465 reviews
Search Air France flights
FinnairPriceFrom £900Free CancellationRating
7.6
1,306 reviews
Search Finnair flights
Japan AirlinesPriceFrom £916Free CancellationRating
8.3
1,505 reviews
Search Japan Airlines 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
Penrith
Cronulla
Katoomba
Swansea

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Sydney. momondo saves you time and could save you money on your trip.

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?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sydney from London.

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.


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1 adult
Wed 9/7
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