There are
2,685 mi
from Costa Mesa, CA to Takoma Park, MD
That's the driving distance. It would take 1 day 23 hours to go from Costa Mesa, California to Takoma Park, Maryland.
The flight distance (direct flight from Costa Mesa, CA to Takoma Park, MD) is 2,288.07 mi.
2,685 mi = 4,320.66 kms