Miles between Casper, WY and Seatac, WA

There are
1,104 mi
from Casper, WY to Seatac, WA

That's the driving distance. It would take 18 hours 57 mins to go from Casper, Wyoming to Seatac, Washington.

The flight distance (direct flight from Casper, WY to Seatac, WA) is 839.92 mi.

1,104 mi = 1,776.47 kms