There are
2,125 mi
from Palatine, IL to Petaluma, CA
That's the driving distance. It would take 1 day 12 hours to go from Palatine, Illinois to Petaluma, California.
The flight distance (direct flight from Palatine, IL to Petaluma, CA) is 1,833.67 mi.
2,125 mi = 3,420.28 kms