| Cities | Distance |
|---|---|
| Idrija to Nasaud | 499.84 mi (804.41 km) |
| Idrija to Navodari | 718.97 mi (1,157.07 km) |
| Idrija to Negresti-Oas | 461.36 mi (742.49 km) |
| Idrija to Nehoiu | 593.80 mi (955.63 km) |
| Idrija to Ocna Mures | 470.70 mi (757.52 km) |
| Idrija to Odobesti | 626.65 mi (1,008.49 km) |
| Idrija to Odorheiu Secuiesc | 539.54 mi (868.31 km) |
| Idrija to Oltenita | 628.91 mi (1,012.13 km) |
| Idrija to Onesti | 609.71 mi (981.23 km) |
| Idrija to Oradea | 382.20 mi (615.09 km) |
| Idrija to Orastie | 440.71 mi (709.26 km) |
| Idrija to Oravita | 376.47 mi (605.87 km) |
| Idrija to Orsova | 415.52 mi (668.71 km) |
| Idrija to Otelu Rosu | 402.51 mi (647.78 km) |
| Idrija to Otopeni | 593.45 mi (955.06 km) |