Miles between Allen, TX and Gaithersburg, MD

There are
1,329 mi
from Allen, TX to Gaithersburg, MD

That's the driving distance. It would take 23 hours 58 mins to go from Allen, Texas to Gaithersburg, Maryland.

The flight distance (direct flight from Allen, TX to Gaithersburg, MD) is 1,161.03 mi.

1,329 mi = 1.61 kms