There are
2,350 mi
from Springfield, OH to San Luis Obispo, CA
That's the driving distance. It would take 1 day 17 hours to go from Springfield, Ohio to San Luis Obispo, California.
The flight distance (direct flight from Springfield, OH to San Luis Obispo, CA) is 2,027.92 mi.
2,350 mi = 3,782.13 kms