| Santa Marinella to Navodari | 857.70 mi (1,380.34 km) |
| Santa Marinella to Negresti-Oas | 693.72 mi (1,116.44 km) |
| Santa Marinella to Nehoiu | 756.46 mi (1,217.41 km) |
| Santa Marinella to Ocna Mures | 665.65 mi (1,071.26 km) |
| Santa Marinella to Odobesti | 798.78 mi (1,285.52 km) |
| Santa Marinella to Odorheiu Secuiesc | 728.05 mi (1,171.69 km) |
| Santa Marinella to Oltenita | 758.74 mi (1,221.07 km) |
| Santa Marinella to Onesti | 793.67 mi (1,277.28 km) |
| Santa Marinella to Oradea | 605.11 mi (973.83 km) |
| Santa Marinella to Orastie | 622.45 mi (1,001.73 km) |
| Santa Marinella to Oravita | 534.19 mi (859.70 km) |
| Santa Marinella to Orsova | 560.82 mi (902.55 km) |
| Santa Marinella to Otelu Rosu | 576.07 mi (927.09 km) |
| Santa Marinella to Otopeni | 734.93 mi (1,182.76 km) |
| Santa Marinella to Ovidiu | 854.79 mi (1,375.65 km) |
