Travel Cost (Economy) Perth – London, UK Adult Ticket Cost: ~$595 to 1,484 1 Adult + Child (Up to 11 Years Old) Ticket Cost Per Passenger: ~$1,159 to 2,212 *Note: Flight costs change all the time, please do your own research online for accurate flight ticket prices. The ticket prices quoted also do not include visa-related and customs fees. ➜ Check flight ticket prices flying from Perth to London