Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London to Sydney from $676

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 14/5. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

Find the cheapest flights from London to Sydney

Cheap return flights

KAYAK's recommended return flight deals from the most popular airlines that fly from London to Sydney.
18:00 - 09:00LGW-SYD
30h 00m1 stop
11:00 - 15:10SYD-LGW
37h 10m1 stop
$1,056China Eastern
Find Deal
Tue, 20 May - Thu, 12 Jun
18:05 - 07:40LGW-SYD
52h 35m3 stops
11:00 - 15:00SYD-LGW
37h 00m1 stop
$1,064China Eastern
Find Deal
Mon, 5 May - Mon, 26 May
12:35 - 14:50LGW-SYD
41h 15m1 stop
19:40 - 06:35SYD-LGW
43h 55m1 stop
$1,134Air China
Find Deal
Tue, 3 Jun - Tue, 17 Jun
20:25 - 14:50LHR-SYD
33h 25m1 stop
19:40 - 20:30SYD-LHR
33h 50m1 stop
$1,209Air China
Find Deal
Thu, 8 May - Tue, 27 May
21:00 - 19:40LHR-SYD
37h 40m2 stops
10:05 - 19:00SYD-LHR
41h 55m1 stop
$1,217China Southern
Find Deal
Tue, 10 Jun - Tue, 17 Jun
21:00 - 19:40LHR-SYD
37h 40m2 stops
21:45 - 19:00SYD-LHR
30h 15m1 stop
$1,225China Southern
Find Deal
Tue, 13 May - Tue, 27 May
21:10 - 22:05STN-SYD
39h 55m1 stop
20:10 - 12:55SYD-STN
25h 45m1 stop
$1,979Emirates
Find Deal
Tue, 29 Apr - Sun, 18 May
14:55 - 22:05STN-SYD
22h 10m1 stop
06:00 - 12:55SYD-STN
39h 55m1 stop
$1,988Emirates
Find Deal
Mon, 5 May - Mon, 19 May
08:10 - 05:55LCY-SYD
36h 45m2 stops
11:00 - 12:30SYD-LCY
34h 30m2 stops
$2,046SWISS
Find Deal
Mon, 2 Jun - Mon, 9 Jun
09:25 - 06:10LCY-SYD
35h 45m2 stops
15:00 - 08:50SYD-LCY
26h 50m2 stops
$2,049SWISS
Find Deal
Thu, 22 May - Tue, 27 May

SWISS flights from London to Sydney

Our best SWISS deals on London to Sydney flight tickets
SWISS
2 June
LCY08:10London City
36h 45m
2 stops
SYD05:55Sydney Kingsford Smith
9 June
SYD11:00Sydney Kingsford Smith
34h 30m
2 stops
LCY12:30London City
SWISS
22 May
LCY09:25London City
35h 45m
2 stops
SYD06:10Sydney Kingsford Smith
27 May
SYD15:00Sydney Kingsford Smith
26h 50m
2 stops
LCY08:50London City
SWISS
29 May
LCY19:20London City
25h 50m
2 stops
SYD06:10Sydney Kingsford Smith
11 June
SYD15:00Sydney Kingsford Smith
30h 30m
2 stops
LCY12:30London City

Air China flights from London to Sydney

Our best Air China deals on London to Sydney flight tickets
Air China
3 June
LGW12:35London Gatwick
41h 15m
1 stop
SYD14:50Sydney Kingsford Smith
17 June
SYD19:40Sydney Kingsford Smith
43h 55m
1 stop
LGW06:35London Gatwick
Air China
8 May
LHR20:25London Heathrow
33h 25m
1 stop
SYD14:50Sydney Kingsford Smith
27 May
SYD19:40Sydney Kingsford Smith
33h 50m
1 stop
LHR20:30London Heathrow
Air China
12 June
LHR22:40London Heathrow
31h 10m
1 stop
SYD14:50Sydney Kingsford Smith
19 June
SYD19:40Sydney Kingsford Smith
31h 05m
1 stop
LHR17:45London 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 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 $1,572. If you aren’t able to travel to Sydney during the month of May, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $1,740.

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 $3,207.

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 $2,006. 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 $2,789 on average. Flights to Sydney from London in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 $2,133 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 $1,718 on momondo.

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

There are 3 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 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

$676

Fastest flight time

21h 30m

Direct flights

Every day

Airports in Sydney

1 airport
The best one-way flight to Sydney from London in the past 72 hours is $676. The best return flight deal from London to Sydney found on momondo in the last 72 hours is $1,056.
The fastest flight from London to Sydney takes 21h 30m
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?

    A flight from London to Sydney Kingsford Smith will travel around 16983.0 km. A reasonable flight in good conditions will take 22h 10m.

  • 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 $646Free cancellationRating
7.0
80 reviews
Search Air China flights
China SouthernPriceFrom $1,042Free cancellationRating
7.4
91 reviews
Search China Southern flights
China EasternPriceFrom $1,217Free cancellationRating
7.1
135 reviews
Search China Eastern flights
China AirlinesPriceFrom $1,559Free cancellationRating
8.2
722 reviews
Search China Airlines flights
Air IndiaPriceFrom $1,658Free cancellationRating
5.5
2,886 reviews
Search Air India flights
Etihad AirwaysPriceFrom $1,695Free cancellationRating
7.4
1,176 reviews
Search Etihad Airways flights
Cathay PacificPriceFrom $1,719Free cancellationRating
7.5
834 reviews
Search Cathay Pacific flights
EmiratesPriceFrom $1,804Free cancellationRating
8.0
3,190 reviews
Search Emirates flights
Malaysia AirlinesPriceFrom $1,813Free cancellationRating
7.3
252 reviews
Search Malaysia Airlines flights
Qatar AirwaysPriceFrom $1,920Free cancellationRating
7.4
3,539 reviews
Search Qatar Airways flights
  • Qantas Airways Flights From London to Sydney

    The lowest priced Qantas Airways flight from London to Sydney from the last 72 hours was $1,271. Generally, Qantas Airways has 5 flights on this route every week with an average price of $1,803. 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
Katoomba
Terrigal
Lithgow
Penrith
Leura
Manly
Coogee
Cronulla
Bondi Beach
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

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Sun 30/3
Sun 6/4

Find better results for your trip to Australia