Miles between Billings, MT and San Marcos, CA

There are
1,271 mi
from Billings, MT to San Marcos, CA

That's the driving distance. It would take 22 hours 25 mins to go from Billings, Montana to San Marcos, California.

The flight distance (direct flight from Billings, MT to San Marcos, CA) is 986.69 mi.

1,271 mi = 1.61 kms