There are
2,608 mi
from Yakima, WA to Martinsburg, WV
That's the driving distance. It would take 1 day 22 hours to go from Yakima, Washington to Martinsburg, West Virginia.
The flight distance (direct flight from Yakima, WA to Martinsburg, WV) is 2,176.76 mi.
2,608 mi = 4,197.05 kms