Cheap flights from London Heathrow Airport to Perth from €485

The month of September is, on average, the cheapest month to fly to Perth from London Heathrow Airport, with most prices found around €1,147. If you aren’t able to travel during the month of September, then book flights to Perth from London Heathrow Airport during May instead. Flights to Perth in May, while not as cheap as those in September, still average around €1,149.

The cheapest day to depart from London Heathrow Airport to Perth is on a Thursday. Travellers who choose to depart for Perth on a Thursday will often find tickets for as low as €1,595. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Perth on Sunday is €2,917.

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 €1,342 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 €1,184 on momondo.

There is only 1 cabin class available to choose from on London Heathrow 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 29% on your flight if you consider stops on a London Heathrow Airport to Perth flight.

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 129 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.

Saturday 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 22% of their flights experiencing any sort of delay.

As of March 2026, there are 1 flights per day flying from London Heathrow Airport to Perth. The most common time of day flights depart is 11:00, with 100% of flights taking off at midday.

As of March 2026, 7 flights take off from London Heathrow Airport and land in Perth each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.