Miles between Ontario, CA and Sammamish, WA

There are
1,180 mi
from Ontario, CA to Sammamish, WA

That's the driving distance. It would take 22 hours 27 mins to go from Ontario, California to Sammamish, Washington.

The flight distance (direct flight from Ontario, CA to Sammamish, WA) is 965.89 mi.

1,180 mi = 1.61 kms