Miles between Napa, CA and Alton, IL

There are
2,040 mi
from Napa, CA to Alton, IL

That's the driving distance. It would take 1 day 11 hours to go from Napa, California to Alton, Illinois.

The flight distance (direct flight from Napa, CA to Alton, IL) is 1,725.64 mi.

2,040 mi = 3.22 kms