There are
2,404 mi
from Mt Vernon, WA to Seabrook, TX
That's the driving distance. It would take 1 day 18 hours to go from Mt Vernon, Washington to Seabrook, Texas.
The flight distance (direct flight from Mt Vernon, WA to Seabrook, TX) is 1,942.65 mi.
2,404 mi = 3,868.47 kms