| Idrija to Superior (Colorado) | 5,413.07 mi (8,711.49 km) |
| Idrija to Superior (Wisconsin) | 4,626.87 mi (7,446.23 km) |
| Idrija to Surprise (Arizona) | 5,999.39 mi (9,655.08 km) |
| Idrija to Susanville (California) | 5,842.33 mi (9,402.33 km) |
| Idrija to Sussex (Wisconsin) | 4,656.91 mi (7,494.58 km) |
| Idrija to Suwanee (Georgia) | 4,921.63 mi (7,920.61 km) |
| Idrija to Swansea (Illinois) | 4,942.39 mi (7,954.01 km) |
| Idrija to Sweetwater (Florida) | 5,157.37 mi (8,299.98 km) |
| Idrija to Sweetwater (Texas) | 5,647.34 mi (9,088.51 km) |
| Idrija to Sycamore (Illinois) | 4,727.64 mi (7,608.41 km) |
| Idrija to Sylacauga (Alabama) | 5,054.30 mi (8,134.11 km) |
| Idrija to Sylvania (Ohio) | 4,551.07 mi (7,324.24 km) |
| Idrija to Syosset (New York) | 4,178.16 mi (6,724.09 km) |
| Idrija to Syracuse (New York) | 4,193.58 mi (6,748.92 km) |
| Idrija to Syracuse (Utah) | 5,564.99 mi (8,955.99 km) |
