Cheap flights from Perth to London from $562

If you aren’t able to travel during the month of May, then book flights to London from Perth during November instead. Flights to London in November, while not as cheap as those in May, still average around $1,506.

Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as $2,056. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Perth to London for around $2,350.

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as $2,189. In contrast, the most expensive time of day to depart to London is in the afternoon when prices are around $2,255.

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

You are more likely to see cheaper flights to London from Perth when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $1,798 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 Perth for as low as $1,673 on momondo.

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

China Southern is the most popular carrier operating from Perth to London

Malaysia Airlines, Qantas Airways and Singapore Airlines are the top three most popular airlines that fly to London from Perth according to our data. Malaysia Airlines 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 12 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 14% of flights between Perth and London have experienced a delay on any given week. The average delay length over the past 12 months has been 226 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.

Sunday 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 14% of their flights experiencing any sort of delay.

Doha (DOH) was the most common stop: 28% of momondo users choosing one-stop flights on this route connected there.

Flights via Guangzhou (CAN) offer the lowest average return price of $1,176.

Flights connecting via Kuala Lumpur (KUL) have the shortest average one-way travel time: 20h 35m.

Kuala Lumpur (KUL) has the shortest average stopover time for this route: 1h 25m.

As of February 2026, there are 1 flights per day flying from Perth to London. The most common time of day flights depart is 19:00, with 100% of flights taking off in the evening.

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