Cheap flights from London to Perth from £496

The month of September is another great option to travel to Perth, with average flight prices from London averaging around £1,108.

On average, the least expensive day to fly to Perth from London is on a Monday. momondo users have found tickets for Monday departures for as low as £1,362. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Perth is Sunday, with ticket prices averaging around £1,441.

Fly from London Heathrow to Perth for the best London - Perth flight prices

You are more likely to see cheaper flights to Perth from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Perth for around £1,233 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Perth from London for as low as £1,137 on momondo.

There are 3 cabin classes available to choose from on London to Perth 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 12% on your flight if you consider stops on a London to Perth flight.

SWISS, British Airways, and Oman Air are the most popular carriers operating from London to Perth

Qantas Airways, Singapore Airlines and Qatar Airways are the top three most popular airlines that fly to Perth from London according to our data. Qantas Airways is the first choice among our users, with 43% of people opting to fly with this airline when travelling to Perth. Keep in mind that there are 14 different airlines that fly to Perth on a routine basis, so you have a few additional options to choose from.

Historically, on average around 25% of flights between London and Perth have experienced a delay on any given week. The average delay length over the past 12 months has been 128 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing in the morning 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. Monday 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 25% of their flights experiencing any sort of delay.

Singapore (SIN) was the most common stop: 23% of momondo users choosing one-stop flights on this route connected there.

Flights via Jeddah (JED) offer the lowest average return price of £573.

Flights connecting via Abu Dhabi (AUH) have the shortest average one-way travel time: 15h 25m.

Singapore (SIN) has the shortest average stopover time for this route: 1h 45m.

1 flights are operational daily from London to Perth as of August 2026. The most popular departure time for this route is 11:00, with 100% of flights per day taking off at midday.

The number of flights available between London and Perth is 7 per week as of August 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.