There are
1,818 mi
from Pasco, WA to Gainesville, TX
That's the driving distance. It would take 1 day 7 hours to go from Pasco, Washington to Gainesville, Texas.
The flight distance (direct flight from Pasco, WA to Gainesville, TX) is 1,445.76 mi.
1,818 mi = 2,925.94 kms