There are
1,615 mi
from Irvine, CA to Merriam, KS
That's the driving distance. It would take 1 day 3 hours to go from Irvine, California to Merriam, Kansas.
The flight distance (direct flight from Irvine, CA to Merriam, KS) is 1,333.24 mi.
1,615 mi = 1.61 kms