Miles between Irving, TX and Florissant, MO

There are
643 mi
from Irving, TX to Florissant, MO

That's the driving distance. It would take 12 hours 2 mins to go from Irving, Texas to Florissant, Missouri.

The flight distance (direct flight from Irving, TX to Florissant, MO) is 554.93 mi.

643 mi = 1,035.01 kms