| Monteriggioni to Navodari | 867.37 mi (1,395.89 km) |
| Monteriggioni to Negresti-Oas | 664.67 mi (1,069.68 km) |
| Monteriggioni to Nehoiu | 756.08 mi (1,216.79 km) |
| Monteriggioni to Ocna Mures | 651.55 mi (1,048.57 km) |
| Monteriggioni to Odobesti | 795.52 mi (1,280.27 km) |
| Monteriggioni to Odorheiu Secuiesc | 717.52 mi (1,154.74 km) |
| Monteriggioni to Oltenita | 770.04 mi (1,239.26 km) |
| Monteriggioni to Onesti | 785.84 mi (1,264.69 km) |
| Monteriggioni to Oradea | 578.67 mi (931.27 km) |
| Monteriggioni to Orastie | 612.43 mi (985.61 km) |
| Monteriggioni to Oravita | 530.21 mi (853.28 km) |
| Monteriggioni to Orsova | 562.08 mi (904.58 km) |
| Monteriggioni to Otelu Rosu | 567.82 mi (913.83 km) |
| Monteriggioni to Otopeni | 741.76 mi (1,193.75 km) |
| Monteriggioni to Ovidiu | 864.85 mi (1,391.85 km) |
