Miles between Plano, TX and Alton, IL

There are
629 mi
from Plano, TX to Alton, IL

That's the driving distance. It would take 11 hours 54 mins to go from Plano, Texas to Alton, Illinois.

The flight distance (direct flight from Plano, TX to Alton, IL) is 544.93 mi.

629 mi = 1,011.55 kms