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Distance from Arbon to Underwood
Route Information
The driving distance from Arbon, Idaho to Underwood, Washington is 621.3 mi (1000 km)
The straight-line (air) distance is 499.4 mi (803.7 km)
The estimated flight time is 1 hr 0 min
The estimated travel time by road is 9 hours 9 minutes
Traveling fast highway, long-distance in a west direction. Average speeds around 68 mph.
Location Details
Origin:
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Destination:
Journey Summary
Traveling from Arbon, Idaho to Underwood, Washington covers 621.3 mi (1000 km) in a west direction. This fast highway, long-distance route typically takes 9 hours 9 minutes under normal conditions.
Drivers have 3 route options between these locations (619.5-703.6 miles / 997-1,132 km). The primary route shown here saves 2 hours and 3 minutes compared to alternatives.
The route features scenic views, toll sections. with average speeds around 68 mph (109 km/h).
Available Routes
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.