Cheap flights from Australia to London from £331

The cheapest month to fly to London from Australia is in February. Flight prices, which tend to average around £853, are often lower during this time because this is during the off-season. The month of May is another great option to travel to London, with average flight prices from Australia averaging around £900.

Our data shows that Wednesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £1,255. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Australia to London for around £2,022.

The cheapest time of day to fly to London is in the afternoon when flights can be purchased for as low as £1,457. Flights at midday are often more expensive, with an average ticket price of £1,511.

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

You are more likely to see cheaper flights to London from Australia when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £1,059 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Australia for as low as £992 on momondo.

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

China Eastern, China Southern, and Hainan Airlines are the most popular carriers operating from Australia to London

Qantas Airways, Emirates and Etihad Airways are the top three most popular airlines that fly to London from Australia according to our data. Qantas Airways is the first choice among our users, with 27% of people opting to fly with this airline when travelling to London. Keep in mind that there are 13 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 10% of flights between Australia and London have experienced a delay on any given week. The average delay length over the past 12 months has been 136 minutes.

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

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday 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 10% of their flights experiencing any sort of delay.

The number of flights available between Australia and London is 3 per day as of October 2026. The most frequent departure time is 14:00, with 100% of daily flights leaving in the afternoon.

As of October 2026, 24 flights take off from Australia and land in London each week. The most common flight departure day for this route is Wed, with 17% of weekly flights taking off on this day.