| Ortahisar to Nasaud | 797.28 mi (1,283.09 km) |
| Ortahisar to Navodari | 509.44 mi (819.86 km) |
| Ortahisar to Negresti-Oas | 858.33 mi (1,381.35 km) |
| Ortahisar to Nehoiu | 639.29 mi (1,028.84 km) |
| Ortahisar to Ocna Mures | 774.74 mi (1,246.82 km) |
| Ortahisar to Odobesti | 634.26 mi (1,020.75 km) |
| Ortahisar to Odorheiu Secuiesc | 720.13 mi (1,158.94 km) |
| Ortahisar to Oltenita | 569.33 mi (916.25 km) |
| Ortahisar to Onesti | 669.23 mi (1,077.02 km) |
| Ortahisar to Oradea | 875.94 mi (1,409.69 km) |
| Ortahisar to Orastie | 776.77 mi (1,250.08 km) |
| Ortahisar to Oravita | 809.05 mi (1,302.04 km) |
| Ortahisar to Orsova | 768.07 mi (1,236.10 km) |
| Ortahisar to Otelu Rosu | 797.82 mi (1,283.96 km) |
| Ortahisar to Otopeni | 611.23 mi (983.68 km) |
