There are
2,135 mi
from Macomb, IL to Arcata, CA
That's the driving distance. It would take 1 day 13 hours to go from Macomb, Illinois to Arcata, California.
The flight distance (direct flight from Macomb, IL to Arcata, CA) is 1,740.61 mi.
2,135 mi = 3,435.22 kms