There are
1,983 mi
from Vallejo, CA to Weslaco, TX
That's the driving distance. It would take 1 day 10 hours to go from Vallejo, California to Weslaco, Texas.
The flight distance (direct flight from Vallejo, CA to Weslaco, TX) is 1,634.73 mi.
1,983 mi = 1.61 kms