There are
1,882 mi
from Portland, ME to Grapevine, TX
That's the driving distance. It would take 1 day 10 hours to go from Portland, Maine to Grapevine, Texas.
The flight distance (direct flight from Portland, ME to Grapevine, TX) is 1,622.34 mi.
1,882 mi = 3,028.28 kms