There are
1,986 mi
from Peoria, IL to Klamath Falls, OR
That's the driving distance. It would take 1 day 11 hours to go from Peoria, Illinois to Klamath Falls, Oregon.
The flight distance (direct flight from Peoria, IL to Klamath Falls, OR) is 1,660.41 mi.
1,986 mi = 1.61 kms