| Sines to Navodari | 1,980.94 mi (3,188.01 km) |
| Sines to Negresti-Oas | 1,755.54 mi (2,825.26 km) |
| Sines to Nehoiu | 1,869.72 mi (3,009.02 km) |
| Sines to Ocna Mures | 1,759.35 mi (2,831.39 km) |
| Sines to Odobesti | 1,908.21 mi (3,070.96 km) |
| Sines to Odorheiu Secuiesc | 1,827.00 mi (2,940.27 km) |
| Sines to Oltenita | 1,883.00 mi (3,030.40 km) |
| Sines to Onesti | 1,896.40 mi (3,051.96 km) |
| Sines to Oradea | 1,676.18 mi (2,697.55 km) |
| Sines to Orastie | 1,723.29 mi (2,773.37 km) |
| Sines to Oravita | 1,643.80 mi (2,645.44 km) |
| Sines to Orsova | 1,676.19 mi (2,697.57 km) |
| Sines to Otelu Rosu | 1,679.92 mi (2,703.57 km) |
| Sines to Otopeni | 1,855.70 mi (2,986.46 km) |
| Sines to Ovidiu | 1,978.33 mi (3,183.81 km) |
