Miles between Thornton, CO and Mission Viejo, CA

There are
1,029 mi
from Thornton, CO to Mission Viejo, CA

That's the driving distance. It would take 18 hours 2 mins to go from Thornton, Colorado to Mission Viejo, California.

The flight distance (direct flight from Thornton, CO to Mission Viejo, CA) is 824.65 mi.

1,029 mi = 1.61 kms