There are
1,470 mi
from Markham, IL to Rexburg, ID
That's the driving distance. It would take 1 day 2 hours to go from Markham, Illinois to Rexburg, Idaho.
The flight distance (direct flight from Markham, IL to Rexburg, ID) is 1,228.32 mi.
1,470 mi = 2,365.83 kms