There are
2,301 mi
from Port Arthur, TX to Gresham, OR
That's the driving distance. It would take 1 day 16 hours to go from Port Arthur, Texas to Gresham, Oregon.
The flight distance (direct flight from Port Arthur, TX to Gresham, OR) is 1,878.63 mi.
2,301 mi = 3,702.91 kms