Miles between Napa, CA and Casper, WY

There are
1,121 mi
from Napa, CA to Casper, WY

That's the driving distance. It would take 19 hours 19 mins to go from Napa, California to Casper, Wyoming.

The flight distance (direct flight from Napa, CA to Casper, WY) is 894.33 mi.

1,121 mi = 1.61 kms