There are
456 mi
from Warwick, RI to Tonawanda, NY
That's the driving distance. It would take 9 hours 2 mins to go from Warwick, Rhode Island to Tonawanda, New York.
The flight distance (direct flight from Warwick, RI to Tonawanda, NY) is 389.95 mi.
456 mi = 733.73 kms