Miles between Ontario, CA and Greenbelt, MD

There are
2,648 mi
from Ontario, CA to Greenbelt, MD

That's the driving distance. It would take 1 day 22 hours to go from Ontario, California to Greenbelt, Maryland.

The flight distance (direct flight from Ontario, CA to Greenbelt, MD) is 2,270.21 mi.

2,648 mi = 4,261.66 kms