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Cheap flights from London to Sydney from $458

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 5/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from London to Sydney

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from London to Sydney.
9:20 pm - 9:00 amLHR-SYD
26h 40m1 stop
11:00 am - 6:40 pmSYD-LHR
40h 40m1 stop
$741China Eastern
Find Deal
mar., may. 13 - lun., may. 26
9:20 pm - 9:00 amLHR-SYD
26h 40m1 stop
11:20 am - 6:40 pmSYD-LHR
40h 20m2 stops
$759China Eastern
Find Deal
mar., may. 13 - lun., may. 26
10:10 pm - 8:25 amLHR-SYD
25h 15m1 stop
9:45 pm - 7:00 pmSYD-LHR
30h 15m1 stop
$822China Southern
Find Deal
dom., may. 11 - mar., may. 27
7:15 pm - 8:25 amLHR-SYD
52h 10m2 stops
9:45 pm - 7:00 pmSYD-LHR
30h 15m1 stop
$829China Southern
Find Deal
dom., may. 11 - mar., may. 27
11:00 am - 7:35 pmLHR-SYD
23h 35m1 stop
10:10 pm - 4:35 pmSYD-LHR
27h 25m1 stop
$1,173Malaysia Airlines
Find Deal
vie., jun. 6 - dom., jun. 15
11:00 am - 7:35 pmLHR-SYD
23h 35m1 stop
1:05 pm - 4:35 pmSYD-LHR
36h 30m1 stop
$1,178Malaysia Airlines
Find Deal
lun., sep. 1 - mar., sep. 23
9:45 pm - 6:05 amLGW-SYD
23h 20m1 stop
10:20 am - 7:20 amSYD-LGW
30h 00m2 stops
$1,357Emirates
Find Deal
mié., may. 7 - mar., may. 13
2:30 pm - 6:05 amLGW-SYD
30h 35m1 stop
6:00 am - 7:20 amSYD-LGW
34h 20m1 stop
$1,363Emirates
Find Deal
dom., may. 4 - mié., may. 14
10:15 am - 7:15 pmLGW-SYD
24h 00m1 stop
11:00 am - 6:25 amSYD-LGW
28h 25m1 stop
$1,391Singapore Airlines
Find Deal
jue., sep. 4 - jue., sep. 25
10:15 am - 4:45 pmLGW-SYD
21h 30m1 stop
3:00 pm - 6:25 amSYD-LGW
48h 25m1 stop
$1,424Singapore Airlines
Find Deal
lun., ago. 25 - lun., sep. 8

China Eastern flights from London to Sydney

Our best China Eastern deals on London to Sydney flight tickets
China Eastern
May 13
LHR9:20 pmLondon Heathrow
26h 40m
1 stop
SYD9:00 amSydney Kingsford Smith
May 26
SYD11:00 amSydney Kingsford Smith
40h 40m
1 stop
LHR6:40 pmLondon Heathrow
China Eastern
May 13
LHR9:20 pmLondon Heathrow
26h 40m
1 stop
SYD9:00 amSydney Kingsford Smith
May 26
SYD11:20 amSydney Kingsford Smith
40h 20m
2 stops
LHR6:40 pmLondon Heathrow
China Eastern
May 15
LHR9:20 pmLondon Heathrow
26h 40m
1 stop
SYD9:00 amSydney Kingsford Smith
May 24
SYD11:20 amSydney Kingsford Smith
40h 20m
2 stops
LHR6:40 pmLondon Heathrow

China Southern flights from London to Sydney

Our best China Southern deals on London to Sydney flight tickets
China Southern
May 11
LHR10:10 pmLondon Heathrow
25h 15m
1 stop
SYD8:25 amSydney Kingsford Smith
May 27
SYD9:45 pmSydney Kingsford Smith
30h 15m
1 stop
LHR7:00 pmLondon Heathrow
China Southern
May 11
LHR7:15 pmLondon Heathrow
52h 10m
2 stops
SYD8:25 amSydney Kingsford Smith
May 27
SYD9:45 pmSydney Kingsford Smith
30h 15m
1 stop
LHR7:00 pmLondon Heathrow
China Southern
May 10
LGW9:30 pmLondon Gatwick
49h 55m
2 stops
SYD8:25 amSydney Kingsford Smith
May 26
SYD8:45 amSydney Kingsford Smith
42h 45m
2 stops
LGW6:30 pmLondon Gatwick

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 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 $988. If you are unable to visit Sydney during the month of May, then departing from London during the month March is also very affordable. Most momondo users find prices during this month for around $1,094.

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

The cheapest day to depart from London to Sydney is on a Sunday when prices can be found for as low as $1,197. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $1,490.

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 $1,245. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the evening, with an average ticket price of $1,817. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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 24 weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,341 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 for as low as $1,080 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.

How have London to Sydney flight prices changed over time?

As of March 2025, prices for London to Sydney flights are approximately 25% 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 round-trip 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

$458

Fastest flight time

21h 30m

Direct flights

None

Airports in Sydney

1 airport
The best one-way flight to Sydney from London in the past 72 hours is $458. The best round-trip flight deal from London to Sydney found on momondo in the last 72 hours is $741.
The fastest flight from London to Sydney takes 21h 30m
There are no direct flights from London to Sydney. Popular non-direct routes for this connection are London Gatwick Airport - Sydney Kingsford Smith Airport and London Heathrow Airport - Sydney Kingsford Smith Airport.
There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)

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

    The straight-line distance from London to Sydney Kingsford Smith is 10552.8 mi. 21h 30m is a normal flight duration for this route.

  • 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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London 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 license 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 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 $747Free CancellationRating
7.1
81 reviews
Search Air China flights
China SouthernPriceFrom $766Free CancellationRating
7.4
92 reviews
Search China Southern flights
Etihad AirwaysPriceFrom $1,029Free CancellationRating
7.4
1,180 reviews
Search Etihad Airways flights
Cathay PacificPriceFrom $1,107Free CancellationRating
7.5
837 reviews
Search Cathay Pacific flights
Malaysia AirlinesPriceFrom $1,147Free CancellationRating
7.3
251 reviews
Search Malaysia Airlines flights
Singapore AirlinesPriceFrom $1,181Free CancellationRating
8.1
1,285 reviews
Search Singapore Airlines flights
Qantas AirwaysPriceFrom $1,197Free CancellationRating
7.5
811 reviews
Search Qantas Airways flights
British AirwaysPriceFrom $1,253Free CancellationRating
6.6
6,712 reviews
Search British Airways flights
  • Qantas Airways Flights From London to Sydney

    Across 3 Qantas Airways flights from London to Sydney this week, the average price was $1,438, with the best Qantas Airways deals starting from $1,197 round-trip. 811 users have rated Qantas Airways on momondo, with an average score of 7.5/10.

  • British Airways Flights From London to Sydney

    Across 6,712 British Airways reviews on momondo, the average score is 6.6/10. British Airways flies from London to Sydney about 3 times each week, with ticket deals ranging from $1,253 to $1,490. Price data is based on momondo searches in the last 72 hours.


Traveling to a place near Sydney?

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

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?

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?

Once you have performed a search for London to Sydney flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from London to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from London to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.


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