There are
1,327 mi
from Orem, UT to Maryland Heights, MO
That's the driving distance. It would take 23 hours 7 mins to go from Orem, Utah to Maryland Heights, Missouri.
The flight distance (direct flight from Orem, UT to Maryland Heights, MO) is 1,136.17 mi.
1,327 mi = 1.61 kms