There are
1,755 mi
from Pendleton, OR to Gainesville, TX
That's the driving distance. It would take 1 day 6 hours to go from Pendleton, Oregon to Gainesville, Texas.
The flight distance (direct flight from Pendleton, OR to Gainesville, TX) is 1,413.70 mi.
1,755 mi = 2,823.68 kms