There are
3,126 mi
from Waltham, MA to Lompoc, CA
That's the driving distance. It would take 2 days 8 hours to go from Waltham, Massachusetts to Lompoc, California.
The flight distance (direct flight from Waltham, MA to Lompoc, CA) is 2,676.21 mi.
3,126 mi = 5,030.39 kms