Distance from Iona, Idaho to Thornton, Idaho
The driving distance from Iona, Idaho to Thornton, Idaho is 19.5 mi (31.3 km)
The straight-line (air) distance is approximately 10.3 mi (16.6 km)
Estimated travel time by road is 23 minutes
We found 3 routes between Iona and Thornton.
Available Routes
Route Directions
Get on US-20 E in Jefferson County from 1st St/N 55th E
Follow US-20 E to W 5000 S in Madison County. Take exit 328 from US-20 E
Drive to S Yellowstone Hwy
Route Directions
Get on US-20 E from N 45th E/Crowley Rd, E 49th N and 25th E
Follow US-20 E to W 5000 S in Madison County. Take exit 328 from US-20 E
Drive to S Yellowstone Hwy
Route Directions
Get on US-20 E in Jefferson County from N 45th E
Follow US-20 E to W 5000 S in Madison County. Take exit 328 from US-20 E
Drive to S Yellowstone Hwy
Journey Details
Traveling from Iona, Idaho to Thornton, Idaho covers 18.7 miles (30 km) in a north direction. This mixed highways and local roads, moderate route typically takes 22 minutes under normal conditions.
Drivers have 3 route options between these locations (19-21 miles / 30-34 km). The primary route shown here saves 2 minutes compared to alternatives.
The route features scenic views. During night weekday travel, expect minimal traffic congestion with average speeds around 49 mph (79 km/h) .
Journey Waypoints
Iona
Starting Point
Thornton
Destination
