There are
2,523 mi
from Mckeesport, PA to Seatac, WA
That's the driving distance. It would take 1 day 20 hours to go from Mckeesport, Pennsylvania to Seatac, Washington.
The flight distance (direct flight from Mckeesport, PA to Seatac, WA) is 2,141.77 mi.
2,523 mi = 3.22 kms