| Idrija to Wichita (Kansas) | 5,260.99 mi (8,466.74 km) |
| Idrija to Wichita Falls (Texas) | 5,501.28 mi (8,853.46 km) |
| Idrija to Wickliffe (Ohio) | 4,467.84 mi (7,190.30 km) |
| Idrija to Wildomar (California) | 6,152.67 mi (9,901.76 km) |
| Idrija to Wildwood (Florida) | 5,085.54 mi (8,184.39 km) |
| Idrija to Wildwood (Missouri) | 4,967.15 mi (7,993.86 km) |
| Idrija to Wilkes-Barre (Pennsylvania) | 4,258.22 mi (6,852.94 km) |
| Idrija to Wilkinsburg (Pennsylvania) | 4,455.70 mi (7,170.76 km) |
| Idrija to Williamsburg (Virginia) | 4,465.20 mi (7,186.04 km) |
| Idrija to Williamsport (Pennsylvania) | 4,305.98 mi (6,929.80 km) |
| Idrija to Williamstown (New Jersey) | 4,287.42 mi (6,899.93 km) |
| Idrija to Willimantic (Connecticut) | 4,087.21 mi (6,577.73 km) |
| Idrija to Williston (North Dakota) | 4,924.40 mi (7,925.06 km) |
| Idrija to Willmar (Minnesota) | 4,804.99 mi (7,732.88 km) |
| Idrija to Willoughby (Ohio) | 4,463.73 mi (7,183.67 km) |
