There are
1,195 mi
from Mission Viejo, CA to Sammamish, WA
That's the driving distance. It would take 22 hours 42 mins to go from Mission Viejo, California to Sammamish, Washington.
The flight distance (direct flight from Mission Viejo, CA to Sammamish, WA) is 996.92 mi.
1,195 mi = 1.61 kms