There are
2,053 mi
from Napa, CA to Sycamore, IL
That's the driving distance. It would take 1 day 11 hours to go from Napa, California to Sycamore, Illinois.
The flight distance (direct flight from Napa, CA to Sycamore, IL) is 1,781.75 mi.
2,053 mi = 3.22 kms