There are
1,439 mi
from Mcallen, TX to Deerfield, IL
That's the driving distance. It would take 1 day 2 hours to go from Mcallen, Texas to Deerfield, Illinois.
The flight distance (direct flight from Mcallen, TX to Deerfield, IL) is 1,250.50 mi.
1,439 mi = 1.61 kms