There are
2,079 mi
from Peoria, IL to San Mateo, CA
That's the driving distance. It would take 1 day 11 hours to go from Peoria, Illinois to San Mateo, California.
The flight distance (direct flight from Peoria, IL to San Mateo, CA) is 1,757.67 mi.
2,079 mi = 3.22 kms