There are
2,368 mi
from Mcallen, TX to Seatac, WA
That's the driving distance. It would take 1 day 19 hours to go from Mcallen, Texas to Seatac, Washington.
The flight distance (direct flight from Mcallen, TX to Seatac, WA) is 1,966.33 mi.
2,368 mi = 3.22 kms