There are
1,765 mi
from Mcallen, TX to Hyattsville, MD
That's the driving distance. It would take 1 day 8 hours to go from Mcallen, Texas to Hyattsville, Maryland.
The flight distance (direct flight from Mcallen, TX to Hyattsville, MD) is 1,514.15 mi.
1,765 mi = 1.61 kms