Miles between Riverside, CA and Alton, IL

There are
1,815 mi
from Riverside, CA to Alton, IL

That's the driving distance. It would take 1 day 7 hours to go from Riverside, California to Alton, Illinois.

The flight distance (direct flight from Riverside, CA to Alton, IL) is 1,544.71 mi.

1,815 mi = 1.61 kms