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Distance from Duncan to South Cheney
Route Information
The driving distance from Duncan, Washington to South Cheney, Washington is 2530.9 mi (4073 km)
The straight-line (air) distance is 11.2 mi (18.0 km)
The estimated flight time is 0 hr 1 min
The estimated travel time by road is 36 hours 52 minutes
Traveling fast highway, long-distance in a west direction. Average speeds around 70 mph.
Location Details
Origin:
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Destination:
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Journey Summary
Traveling from Duncan, Washington to South Cheney, Washington covers 2530.9 mi (4073 km) in a west direction. This fast highway, long-distance route typically takes 36 hours 52 minutes under normal conditions.
Drivers have 3 route options between these locations (2,528.1-2,571.0 miles / 4,069-4,138 km). The primary route shown here saves 1 hour and 14 minutes compared to alternatives.
The route features scenic views, toll sections. with average speeds around 70 mph (113 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.