| Southport to Nasaud | 1,273.67 mi (2,049.77 km) |
| Southport to Navodari | 1,555.11 mi (2,502.71 km) |
| Southport to Negresti-Oas | 1,213.82 mi (1,953.46 km) |
| Southport to Nehoiu | 1,421.58 mi (2,287.82 km) |
| Southport to Ocna Mures | 1,283.97 mi (2,066.35 km) |
| Southport to Odobesti | 1,436.34 mi (2,311.56 km) |
| Southport to Odorheiu Secuiesc | 1,344.71 mi (2,164.10 km) |
| Southport to Oltenita | 1,485.79 mi (2,391.15 km) |
| Southport to Onesti | 1,405.97 mi (2,262.69 km) |
| Southport to Oradea | 1,181.18 mi (1,900.92 km) |
| Southport to Orastie | 1,278.30 mi (2,057.23 km) |
| Southport to Oravita | 1,251.48 mi (2,014.07 km) |
| Southport to Orsova | 1,292.35 mi (2,079.83 km) |
| Southport to Otelu Rosu | 1,257.97 mi (2,024.50 km) |
| Southport to Otopeni | 1,444.23 mi (2,324.26 km) |
