There are
2,068 mi
from Markham, IL to Oxnard, CA
That's the driving distance. It would take 1 day 12 hours to go from Markham, Illinois to Oxnard, California.
The flight distance (direct flight from Markham, IL to Oxnard, CA) is 1,779.79 mi.
2,068 mi = 3,327.44 kms