There are
1,990 mi
from Mckinney, TX to Eureka, CA
That's the driving distance. It would take 1 day 12 hours to go from Mckinney, Texas to Eureka, California.
The flight distance (direct flight from Mckinney, TX to Eureka, CA) is 1,599.19 mi.
1,990 mi = 1.61 kms