There are
2,956 mi
from Lake Forest, CA to Warwick, RI
That's the driving distance. It would take 2 days 5 hours to go from Lake Forest, California to Warwick, Rhode Island.
The flight distance (direct flight from Lake Forest, CA to Warwick, RI) is 2,559.19 mi.
2,956 mi = 4,757.55 kms