| Monte San Pietro to Navodari | 858.24 mi (1,381.21 km) |
| Monte San Pietro to Negresti-Oas | 629.85 mi (1,013.65 km) |
| Monte San Pietro to Nehoiu | 740.73 mi (1,192.09 km) |
| Monte San Pietro to Ocna Mures | 627.59 mi (1,010.00 km) |
| Monte San Pietro to Odobesti | 777.68 mi (1,251.56 km) |
| Monte San Pietro to Odorheiu Secuiesc | 695.28 mi (1,118.95 km) |
| Monte San Pietro to Oltenita | 763.04 mi (1,228.00 km) |
| Monte San Pietro to Onesti | 764.81 mi (1,230.85 km) |
| Monte San Pietro to Oradea | 546.92 mi (880.18 km) |
| Monte San Pietro to Orastie | 592.02 mi (952.76 km) |
| Monte San Pietro to Oravita | 515.77 mi (830.05 km) |
| Monte San Pietro to Orsova | 550.81 mi (886.44 km) |
| Monte San Pietro to Otelu Rosu | 549.49 mi (884.33 km) |
| Monte San Pietro to Otopeni | 731.82 mi (1,177.75 km) |
| Monte San Pietro to Ovidiu | 856.05 mi (1,377.67 km) |
