| Idrija to Oak Harbor (Washington) | 5,417.32 mi (8,718.33 km) |
| Idrija to Oak Hills (Oregon) | 5,588.72 mi (8,994.17 km) |
| Idrija to Oak Lawn (Illinois) | 4,705.99 mi (7,573.56 km) |
| Idrija to Oak Park (California) | 6,163.71 mi (9,919.53 km) |
| Idrija to Oak Park (Illinois) | 4,699.24 mi (7,562.70 km) |
| Idrija to Oak Park (Michigan) | 4,496.54 mi (7,236.49 km) |
| Idrija to Oak Ridge (Florida) | 5,074.22 mi (8,166.16 km) |
| Idrija to Oak Ridge (New Jersey) | 4,210.45 mi (6,776.06 km) |
| Idrija to Oak Ridge (Tennessee) | 4,840.40 mi (7,789.87 km) |
| Idrija to Oakdale (California) | 6,008.19 mi (9,669.24 km) |
| Idrija to Oakdale (Minnesota) | 4,739.30 mi (7,627.17 km) |
| Idrija to Oakland (California) | 6,042.89 mi (9,725.09 km) |
| Idrija to Oakland (New Jersey) | 4,199.87 mi (6,759.04 km) |
| Idrija to Oakland Park (Florida) | 5,128.22 mi (8,253.07 km) |
| Idrija to Oakleaf Plantation (Florida) | 5,011.39 mi (8,065.05 km) |
