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Distance from Iona to Old Faithful
Route Information
The driving distance from Iona, Idaho to Old Faithful, Wyoming is 135.8 mi (218.5 km)
The straight-line (air) distance is 84.8 mi (136.5 km)
The estimated flight time is 0 hr 10 min
The estimated travel time by road is 2 hours 35 minutes
Traveling mixed highways and local roads, substantial in a northeast direction. Average speeds around 52 mph.
Location Details
Origin:
Destination:
Journey Summary
Traveling from Iona, Idaho to Old Faithful, Wyoming covers 135.8 mi (218.5 km) in a northeast direction. This mixed highways and local roads, substantial route typically takes 2 hours 35 minutes under normal conditions.
The route features scenic views, toll sections. with average speeds around 52 mph (84 km/h).
How is the distance calculated?
Driving distances are based on actual road data. We use advanced routing algorithms that consider traffic, tolls, highways, and local streets. For air distances (as the crow flies), we use the Vincenty formula. It's a precise method that accounts for the Earth's shape and provides accuracy up to 0.5 mm.
When multiple route options exist, we display both the shortest and fastest paths. Travel times are estimated based on typical speeds for each road type, though actual times may vary with traffic and weather conditions. All distances are shown in both miles and kilometers for convenience.