There are
734 mi
from Tempe, AZ to Palo Alto, CA
That's the driving distance. It would take 13 hours 32 mins to go from Tempe, Arizona to Palo Alto, California.
The flight distance (direct flight from Tempe, AZ to Palo Alto, CA) is 637.42 mi.
734 mi = 1,181.19 kms