A car is a bonus for sight seeing as Perth is very spread out.

You can pre book a rental car at the airport and drive to your accommodation!

A taxi from the International Airport is approx 20 minutes

A taxi from the Domestic Airport is approx 15 minutes.

There is a shuttle service from the airport but this goes to the City, not your accommodation and is approx $18 per person. A taxi will cost about $20-30

no matter how many people.