In general, when booking your flight to Perth, May is the cheapest month on average.
On average, from most locations, when planning your trip to Perth, try to book your flight in the region of 60 days in advance for the cheapest prices.
From most locations, the cheapest flights to Perth are found on a Tuesday. Booking a Saturday departure is usually the most expensive.
Our data shows that the cheapest Perth flights are usually those with evening departure times. morning flights are often costlier.