Miles between Thornton, CO and Merriam, KS

There are
604 mi
from Thornton, CO to Merriam, KS

That's the driving distance. It would take 10 hours 17 mins to go from Thornton, Colorado to Merriam, Kansas.

The flight distance (direct flight from Thornton, CO to Merriam, KS) is 551.19 mi.

604 mi = 972.27 kms