1,882 road miles.
about 1600 miles
510 miles
Great circle (shortest direct), SLC Intl to Spokane Intl = 547 miles
650 miles
935 miles taking I-80 EAST.
It is about 530 miles.
Yuma is 180 miles southwest of Phoenix
Trenton to Phoenix is 2363 miles.
The one in Virginia is 2341 miles from Phoenix.
Montreal is 2619 miles from Phoenix.
Not to overstate the obvious, but the Phoenix Zoo is in Phoenix.