There are
1,851 mi
from Mission Viejo, CA to Swansea, IL
That's the driving distance. It would take 1 day 8 hours to go from Mission Viejo, California to Swansea, Illinois.
The flight distance (direct flight from Mission Viejo, CA to Swansea, IL) is 1,576.86 mi.
1,851 mi = 1.61 kms