Cheap flights from the United Kingdom to Sydney from £397

In general, May is the cheapest month to fly from United Kingdom to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £790. If you don’t want to visit Sydney in May, then you should wait until June to fly from United Kingdom, when ticket prices are also cheap, with an average price of £823.

The cheapest day to depart on your flight to Sydney is on a Monday when prices can be found for as low as £1,154. 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 United Kingdom because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,279.

Fly from London Heathrow to Sydney Kingsford Smith for the best United Kingdom - Sydney Kingsford Smith flight prices

You are more likely to see cheaper flights to Sydney from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around £1,007 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 United Kingdom for as low as £943 on momondo.

There are 4 cabin classes available to choose from on United Kingdom to Sydney flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 4% on your flight if you consider stops on a United Kingdom to Sydney flight.

China Eastern, Etihad Airways, and Emirates are the most popular carriers operating from United Kingdom to Sydney Kingsford Smith

Etihad Airways, Qatar Airways and Cathay Pacific are the top three most popular airlines that fly to Sydney from United Kingdom according to our data. Etihad Airways is the first choice among our users, with 31% of people opting to fly with this airline when travelling to Sydney. Keep in mind that there are 30 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

As of April 2026, 3 flights take off from United Kingdom and land in Sydney each day. The most common flight departure time for this route is 22:00, with 100% of daily flights taking off in the evening.

The number of flights available between United Kingdom and Sydney is 21 per week as of April 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.