Cheap flights from the United Kingdom to Australia from £399

The month of May is, on average, the cheapest month to fly to Australia from United Kingdom, with most prices found around £926. The month of November is another great option to travel to Australia, with average flight prices from United Kingdom averaging around £979.

The cheapest day to depart on your flight to Australia is on a Monday when prices can be found for as low as £1,152. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Australia is Friday, with ticket prices averaging around £1,272.

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

You are more likely to see cheaper flights to Australia from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around £1,002 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from United Kingdom for as low as £942 on momondo.

You could potentially save up to 1% on your flight if you consider stops on a United Kingdom to Australia flight.

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

Qatar Airways, Emirates and Cathay Pacific are the top three most popular airlines that fly to Australia from United Kingdom according to our data. Qatar Airways is the first choice among our users, with 39% of people opting to fly with this airline when travelling to Australia. Keep in mind that there are 35 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

Historically, on average around 24% of flights between United Kingdom and Australia have experienced a delay on any given week. The average delay length over the past 12 months has been 118 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Thursday is statistically the day of the week that experiences the fewest delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

According to our data, Qantas Airways have had the fewest delays on this route over the last 12 months, with about 24% of their flights experiencing any sort of delay.

3 flights are operational daily from United Kingdom to Australia as of May 2026. The most popular departure time for this route is 22:00, with 74% of flights per day taking off in the evening.

As of May 2026, 27 flights take off from United Kingdom and land in Australia each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.