There are
2,545 mi
from Waltham, MA to Cedar City, UT
That's the driving distance. It would take 1 day 21 hours to go from Waltham, Massachusetts to Cedar City, Utah.
The flight distance (direct flight from Waltham, MA to Cedar City, UT) is 2,214 mi.
2,545 mi = 4,096.08 kms