There are
2,043 mi
from Naperville, IL to Oxnard, CA
That's the driving distance. It would take 1 day 11 hours to go from Naperville, Illinois to Oxnard, California.
The flight distance (direct flight from Naperville, IL to Oxnard, CA) is 1,758.16 mi.
2,043 mi = 3.22 kms