| Surdulica to Nasaud | 335.34 mi (539.67 km) |
| Surdulica to Navodari | 341.89 mi (550.22 km) |
| Surdulica to Negresti-Oas | 362.69 mi (583.69 km) |
| Surdulica to Nehoiu | 275.59 mi (443.53 km) |
| Surdulica to Ocna Mures | 268.55 mi (432.18 km) |
| Surdulica to Odobesti | 322.19 mi (518.52 km) |
| Surdulica to Odorheiu Secuiesc | 293.84 mi (472.90 km) |
| Surdulica to Oltenita | 244.10 mi (392.84 km) |
| Surdulica to Onesti | 334.70 mi (538.64 km) |
| Surdulica to Oradea | 302.67 mi (487.11 km) |
| Surdulica to Orastie | 223.89 mi (360.32 km) |
| Surdulica to Oravita | 163.81 mi (263.63 km) |
| Surdulica to Orsova | 140.75 mi (226.51 km) |
| Surdulica to Otelu Rosu | 195.31 mi (314.32 km) |
| Surdulica to Otopeni | 233.48 mi (375.75 km) |
