There are
2,283 mi
from Gainesville, FL to Rexburg, ID
That's the driving distance. It would take 1 day 17 hours to go from Gainesville, Florida to Rexburg, Idaho.
The flight distance (direct flight from Gainesville, FL to Rexburg, ID) is 1,887.31 mi.
2,283 mi = 3.22 kms