Cheap Flights from London (LON) to Sydney (SYD)

Prices were available within the past 7 days and starts at £582 for one-way flights and £707 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from London to Sydney: Reviews from verified customers

Jan 19, 2020

Comfortable new A380 long haul from London to Sydney.

Jan 9, 2020

Overall the flight was good but the food was poor (especially the breakfast choices) and the film selection was limited!

Dec 9, 2019

Sophie on the Singapore leg of flight was great! Great customer service, friendly, joking with passengers. Hayley on next part of the trip from Singapore to Sydney was the same and gave good travel knowledge tips of destinations

Nov 16, 2019

First time flying with Qantas definitely won’t be the last thanks

Sep 26, 2019

Good food except for early morning pre-arrival meal - a very basic thick white bread sandwich, fresh enough but I couldn’t finish it. (Was it connected to the low complement of cabin crew on that leg?)

Aug 27, 2019

No wifi charger, passenger in front reclines seat = no space

Mar 13, 2019

Highly recommend xxx

Dec 17, 2018

The service was minimal but ok, due to the length of the flight the staff kept the lights off so that everyone could try to sleep

Nov 1, 2018

Really excellent service in World Traveller Plus cabin.

Aug 3, 2018

For any reason, I was not able to choose my sit at the moment the check-in opened. Maybe technicals problems on the web?

Flight from London to Sydney route information

Origin Airport Heathrow
Destination Airport Kingsford Smith Intl.
Airlines Serving Air Canada, All Nippon Airways, American Airlines, British Airways, Cathay Pacific, China Airlines, Delta, Emirates, Etihad Airways, Finnair, Japan Airlines, Korean Air, Malaysia Airlines, Qantas Airways, Qatar Airways, Singapore Airlines, Thai Airways International, United, Vietnam Airlines, Virgin Atlantic
Flight Price £706
Distance 16,918 km

Compare flights from London to Sydney easily and book in confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from to . Operating between them flights per day, airlines cover the route. And fly direct, getting you to Kingsford Smith Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from LON-All Airports to Kingsford Smith Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from LON-All Airports ( LON) to Kingsford Smith Intl. (SYD) 

The easiest way to view the best deals on flights from to today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from LON-All Airports to Kingsford Smith Intl. start at just and range up to .  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near London and Sydney
  • booking your flight during March, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why book your London to Sydney flights with Expedia?  

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from LON-All Airports to Kingsford Smith Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.