There are
2,230 mi
from Yakima, WA to Weslaco, TX
That's the driving distance. It would take 1 day 16 hours to go from Yakima, Washington to Weslaco, Texas.
The flight distance (direct flight from Yakima, WA to Weslaco, TX) is 1,874.13 mi.
2,230 mi = 3.22 kms