Sky Harbor has three areas for pets to stretch their legs, drink water and take potty breaks (mitts for cleaning up provided). The Pet Patch is located just east of Terminal 2.
The Paw Pad is located just outside of the west doors of Terminal 3 [PDF].
The Bone Yard is on the west side of Terminal 4 [PDF] just outside of baggage claim, level 1.
There are also pet parks located near the PHX Sky Train stations. The East Economy Park & Bark is located near the East Economy parking garages. The Park 'n Play is located on the northwest corner of the 44th Street PHX Sky Train Station.