| Idrija to Ukiah (California) | 5,986.15 mi (9,633.78 km) |
| Idrija to Union (Missouri) | 4,986.33 mi (8,024.72 km) |
| Idrija to Union City (California) | 6,048.99 mi (9,734.91 km) |
| Idrija to Union City (Georgia) | 4,963.94 mi (7,988.68 km) |
| Idrija to Union City (New Jersey) | 4,202.26 mi (6,762.88 km) |
| Idrija to Union City (Tennessee) | 5,009.21 mi (8,061.55 km) |
| Idrija to Union Hill-Novelty Hill (Washington) | 5,440.86 mi (8,756.21 km) |
| Idrija to Union Park (Florida) | 5,061.82 mi (8,146.21 km) |
| Idrija to Uniondale (New York) | 4,186.11 mi (6,736.90 km) |
| Idrija to Universal City (Texas) | 5,721.57 mi (9,207.97 km) |
| Idrija to University (Florida) | 5,137.69 mi (8,268.32 km) |
| Idrija to University City (Missouri) | 4,950.04 mi (7,966.32 km) |
| Idrija to University Heights (Ohio) | 4,475.46 mi (7,202.55 km) |
| Idrija to University of California-Santa Barbara (California) | 6,181.42 mi (9,948.03 km) |
| Idrija to University Park (Texas) | 5,490.65 mi (8,836.35 km) |
