There are
1,157 mi
from Warwick, RI to Maryland Heights, MO
That's the driving distance. It would take 22 hours 9 mins to go from Warwick, Rhode Island to Maryland Heights, Missouri.
The flight distance (direct flight from Warwick, RI to Maryland Heights, MO) is 1,022.08 mi.
1,157 mi = 1.61 kms