Cheap flights from Western Australia to London from $709

The month of March is, on average, the cheapest month to fly to London Heathrow Airport from Western Australia, with most prices found around $1,499. If you aren’t able to travel during the month of March, then book flights to London Heathrow Airport from Western Australia during October instead. Flights to London Heathrow Airport in October, while not as cheap as those in March, still average around $1,632.

Our data shows that Monday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $2,157. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Western Australia to London Heathrow Airport for around $2,585.

In the afternoon is the cheapest time of day to fly from Western Australia to London Heathrow Airport when you can find flight prices for as low as $2,220. Flying to London Heathrow Airport in the afternoon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to London Heathrow Airport is at midday when prices are around $2,976.

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

You are more likely to see cheaper flights to London Heathrow Airport from Western Australia when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $1,975 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Western Australia for as low as $1,821 on momondo.

There are 3 cabin classes available to choose from on Western Australia to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cathay Pacific and Qantas Airways are the most popular carriers operating from Western Australia to London Heathrow

Qantas Airways, Malaysia Airlines and Singapore Airlines are the top three most popular airlines that fly to London Heathrow Airport from Western Australia according to our data. Qantas Airways is the first choice among our users, with 31% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 11 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

The number of flights available between Western Australia and London Heathrow Airport is 1 per week as of September 2026. The most frequent departure day is Mon, with 100% of weekly flights leaving on this day.

The flight from Western Australia to London Heathrow Airport depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Perth (a popular airport in Western Australia) to London Heathrow Airport (the most popular airport in London Heathrow Airport), then the flight time is 17h 50m on average. If you fly from Broome (another popular airport in Western Australia) to London Heathrow Airport, then the average flight time is 29h 10m.