Miles between Harlingen, TX and Gaithersburg, MD

There are
1,747 mi
from Harlingen, TX to Gaithersburg, MD

That's the driving distance. It would take 1 day 8 hours to go from Harlingen, Texas to Gaithersburg, Maryland.

The flight distance (direct flight from Harlingen, TX to Gaithersburg, MD) is 1,484.56 mi.

1,747 mi = 2,811.28 kms