There are
2,128 mi
from Harlingen, TX to Warwick, RI
That's the driving distance. It would take 1 day 16 hours to go from Harlingen, Texas to Warwick, Rhode Island.
The flight distance (direct flight from Harlingen, TX to Warwick, RI) is 1,836.26 mi.
2,128 mi = 3,425.43 kms