LON - YQY

£502 Find Cheap Flights from London to Sydney

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Sydney departing on 3/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Sydney, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Sydney, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 26% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Booking Insights
Flights Deals

Cheap Flights from London to Sydney (LON-YQY)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Sydney

Wed, 3 Sep - Wed, 17 Sep
Logo
21:05 - 19:30LGW-YQY
26h 25m2 stops
Logo
08:00 - 09:25YQY-LGW
21h 25m1 stop
£503
Find Deal
Wed, 3 Sep - Wed, 17 Sep
Logo
20:05 - 19:30LHR-YQY
27h 25m2 stops
Logo
08:00 - 21:00YQY-LHR
9h 00m1 stop
£538
Find Deal
Wed, 10 Dec - Wed, 7 Jan
Air Canada Logo
09:00 - 22:53LHR-YQY
17h 53m2 stops
Air Canada Logo
05:30 - 20:35YQY-LHR
35h 05m2 stops
£540Air Canada
Find Deal
Wed, 10 Dec - Wed, 7 Jan
Air Canada Logo
09:00 - 22:53LHR-YQY
17h 53m2 stops
Air Canada Logo
05:30 - 07:10YQY-LHR
21h 40m1 stop
£542Air Canada
Find Deal
Wed, 20 Aug - Wed, 3 Sep
Air Canada Logo
09:30 - 15:54LHR-YQY
10h 24m1 stop
Air Canada Logo
16:30 - 09:35YQY-LHR
13h 05m1 stop
£547Air Canada
Find Deal
Thu, 4 Sep - Tue, 16 Sep
Air Canada Logo
09:30 - 15:48LHR-YQY
10h 18m1 stop
Air Canada Logo
16:30 - 06:30YQY-LHR
10h 00m1 stop
£548Air Canada
Find Deal
Thu, 4 Sep - Tue, 16 Sep
Air Canada Logo
06:50 - 15:48LHR-YQY
12h 58m2 stops
Air Canada Logo
16:30 - 06:30YQY-LHR
10h 00m1 stop
£553Air Canada
Find Deal
Mon, 15 Dec - Sun, 15 Feb
Air Canada Logo
11:05 - 22:53LHR-YQY
39h 48m2 stops
Air Canada Logo
05:30 - 20:35YQY-LHR
35h 05m2 stops
£554Air Canada
Find Deal
Mon, 15 Sep - Mon, 29 Sep
Logo
20:05 - 00:09LHR-YQY
32h 04m2 stops
Logo
16:30 - 09:35YQY-LHR
13h 05m1 stop
£556
Find Deal
Mon, 15 Sep - Mon, 29 Sep
Air Canada Logo
06:50 - 15:48LHR-YQY
12h 58m2 stops
Air Canada Logo
16:30 - 21:00YQY-LHR
48h 30m2 stops
£557Air Canada
Find Deal
Booking Insights

KAYAK's insights & trends for London to Sydney flights

Get data-powered insights and trends into flights from London to Sydney to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from London to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Sydney is March, where tickets cost £472 (return) on average. On the other hand, the most expensive months are August and December, where the average cost of round-trip tickets is £791 and £688 respectively.

Find deals

Good to know - Cheap tickets from London to Sydney

Low seasonJanuary
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly (35% more expensive on average)

When to book flights from London to Sydney

Are your dates flexible? Find out the best times to travel from London to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Sydney

  • What is the cheapest flight from London to Sydney?

    In the last 3 days, the lowest price for a flight from London to Sydney was £665 for a return ticket.

  • Which aircraft models fly most regularly from London to Sydney?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London to Sydney?

    Star Alliance is the only airline alliance operating flights between London and Sydney.

  • How does KAYAK find such low prices on flights from London to Sydney?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Sydney with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Sydney?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from London to Sydney

 
See real verified KAYAK customer reviews for airlines flying from London to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Sydney? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
Air CanadaOverall score based on 9851 reviews
7.1Comfort
7.3Boarding
7.8Crew
6.8Entertainment
6.3Food
Airline reviews

On-time boarding, departure, and flight. Electronic notifications about bags for the whole of their own journey too - from when they got accepted into the system through to being loaded onto the plane and then finally being disgorged onto the right carousel. That was an excellent feature.

10.0 ExcellentRobert, Jul 2025YUL - YHZ
Read more Air Canada reviews

On-time boarding, departure, and flight. Electronic notifications about bags for the whole of their own journey too - from when they got accepted into the system through to being loaded onto the plane and then finally being disgorged onto the right carousel. That was an excellent feature.

The 787 Dreamliner that we flew on was relatively new and a nice aircraft. We flew on a 777 which was noticeably older and the seats were average” but the 787 was very nice, especially for the price. No window blinds anymore, instead high tech adjustable polychromatic glass!! Nice.

Everything was fine, crew was great. Always appreciate an on-time flight.

an absolute disaster and nightmare on air condition. IT WAS FREEZING!! everyone around us had hats, hoodies, gloves outdoor jackets on. that segment of the aircraft had a fault I assume...no amount of suggestion to turn down the air con helped. otherwise all good.

Everything was very good, short delay Toronto to Regina on my return to Canada but not a big deal. Thanks Kayak, Dr. Ian Stewart

Boarded smoothly, took off on time. Entertainment screens were reliable and the movie library is abundant. Food better than wtst was served on the first leg of the journey by another airline.

Check in was incredibly fast, fukuoka was comfortable and crew very pleasant. The only negative was that the boarding was somewhat chaotic, but it so often is these days as airlines tend to board by how much you pay and not by what an orderly process of filling the plane would be.

Old, noisy plane, bad coffee, delayed. Flight attendant was very nice.

It was ok. Even after the airport bus took us to the terminal , we did not expect to walk 35 mins inside the airport to the gate . A 15 min walk is ok . Especially if there was any delay in TSA check which happens to is too then people can easily miss the flight.

Excellent bit seats are still a little too small and there's that $75 baggage charge.

Everything you need to know for your flight from London to Sydney

Information on your arrival and departure airports

Sydney (YQY)

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.