Miles between Casper, WY and Duarte, CA

There are
1,057 mi
from Casper, WY to Duarte, CA

That's the driving distance. It would take 18 hours 34 mins to go from Casper, Wyoming to Duarte, California.

The flight distance (direct flight from Casper, WY to Duarte, CA) is 870.97 mi.

1,057 mi = 1,700.33 kms