| Idrija to Willow Grove (Pennsylvania) | 4,273.62 mi (6,877.72 km) |
| Idrija to Willowbrook (California) | 6,163.81 mi (9,919.70 km) |
| Idrija to Willowick (Ohio) | 4,466.59 mi (7,188.29 km) |
| Idrija to Wilmette (Illinois) | 4,688.00 mi (7,544.61 km) |
| Idrija to Wilmington (Delaware) | 4,308.60 mi (6,934.02 km) |
| Idrija to Wilmington (North Carolina) | 4,652.74 mi (7,487.87 km) |
| Idrija to Wilmington (Ohio) | 4,659.17 mi (7,498.22 km) |
| Idrija to Wilmington Island (Georgia) | 4,887.57 mi (7,865.79 km) |
| Idrija to Wilson (North Carolina) | 4,585.61 mi (7,379.83 km) |
| Idrija to Wilsonville (Oregon) | 5,600.97 mi (9,013.89 km) |
| Idrija to Wilton Manors (Florida) | 5,128.52 mi (8,253.56 km) |
| Idrija to Wimauma (Florida) | 5,150.35 mi (8,288.69 km) |
| Idrija to Winchester (Kentucky) | 4,740.71 mi (7,629.43 km) |
| Idrija to Winchester (Nevada) | 5,941.35 mi (9,561.67 km) |
| Idrija to Winchester (Virginia) | 4,442.46 mi (7,149.45 km) |
