There are
987 mi
from Temecula, CA to Riverton, WY
That's the driving distance. It would take 17 hours 27 mins to go from Temecula, California to Riverton, Wyoming.
The flight distance (direct flight from Temecula, CA to Riverton, WY) is 811.36 mi.
987 mi = 1,588.21 kms