Cheap flights from London Heathrow Airport to Perth from $777

The month of November is, on average, the cheapest month to fly to Perth from London Heathrow Airport, with most prices found around $2,152. If you’re not able to fly to Perth in November, then May is your next best option. Flight prices from London Heathrow Airport to Perth during May average around $2,154.

The cheapest day to depart from London Heathrow Airport to Perth is on a Wednesday. Travellers who choose to depart for Perth on a Wednesday will often find tickets for as low as $2,370. The most expensive day to fly to Perth is Friday, with ticket prices averaging around $3,463.

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

You are more likely to see cheaper flights to Perth from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Perth for around $2,353 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 Heathrow Airport for as low as $2,205 on momondo.

There are 2 cabin classes available to choose from on London Heathrow Airport 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 5% on your flight if you consider stops on a London Heathrow Airport to Perth flight.

Etihad Airways and British Airways are the most popular carriers operating from London Heathrow to Perth

Qantas Airways, Singapore Airlines and Malaysia Airlines are the top three most popular airlines that fly to Perth from London Heathrow Airport according to our data. Qantas Airways is the first choice among our users, with 39% of people opting to fly with this airline when travelling to Perth. Keep in mind that there are 5 different airlines that fly to Perth on a routine basis, so you have a few additional options to choose from.

Historically, on average around 22% 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 114 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 22% of their flights experiencing any sort of delay.

Singapore (SIN) was the most common stop: 57% of momondo users choosing one-stop flights on this route connected there.

Flights via Kuala Lumpur (KUL) offer the lowest average return price of $1,932.

Flights connecting via Singapore (SIN) have the shortest average one-way travel time: 20h 20m.

Kuala Lumpur (KUL) has the shortest average stopover time for this route: 1h 45m.

1 flights are operational daily from London Heathrow Airport to Perth as of September 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 Heathrow Airport and Perth is 7 per week as of September 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.