Cheap flights from Perth to London from £421

The cheapest month to fly to London Gatwick Airport from Perth is in October. Flight prices, which tend to average around £750, are often lower during this time because this is during the off-season. If you don’t want to visit London Gatwick Airport in October, then you should wait until February to fly from Perth, when ticket prices are also cheap, with an average price of £750.

You are more likely to see cheaper flights to London Gatwick Airport from Perth when booking weeks ahead of your departure date. In general, you can expect to find flights to London Gatwick Airport for around £958 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Gatwick Airport from Perth for as low as £695 on momondo.

You could potentially save up to 31% on your flight if you consider stops on a Perth to London Gatwick Airport flight.

As of June 2026, prices for Perth to London Gatwick Airport flights are approximately 21% cheaper when compared to flights at the same time last year.

Dubai (DXB) was the most common stop: 60% of momondo users choosing one-stop flights on this route connected there.

Flights via Dubai (DXB) offer the lowest average return price of £866.

Flights connecting via Singapore (SIN) have the shortest average one-way travel time: 21h 10m.

Singapore (SIN) has the shortest average stopover time for this route: 1h 23m.