There are
1,586 mi
from Irvine, CA to Weslaco, TX
That's the driving distance. It would take 1 day 3 hours to go from Irvine, California to Weslaco, Texas.
The flight distance (direct flight from Irvine, CA to Weslaco, TX) is 1,291.98 mi.
1,586 mi = 1.61 kms