| Ruislip to Nasaud | 1,148.76 mi (1,848.75 km) |
| Ruislip to Navodari | 1,423.18 mi (2,290.38 km) |
| Ruislip to Negresti-Oas | 1,090.67 mi (1,755.27 km) |
| Ruislip to Nehoiu | 1,289.59 mi (2,075.39 km) |
| Ruislip to Ocna Mures | 1,152.10 mi (1,854.12 km) |
| Ruislip to Odobesti | 1,308.36 mi (2,105.60 km) |
| Ruislip to Odorheiu Secuiesc | 1,215.80 mi (1,956.64 km) |
| Ruislip to Oltenita | 1,348.19 mi (2,169.71 km) |
| Ruislip to Onesti | 1,280.11 mi (2,060.14 km) |
| Ruislip to Oradea | 1,048.90 mi (1,688.04 km) |
| Ruislip to Orastie | 1,141.63 mi (1,837.28 km) |
| Ruislip to Oravita | 1,106.61 mi (1,780.91 km) |
| Ruislip to Orsova | 1,147.65 mi (1,846.96 km) |
| Ruislip to Otelu Rosu | 1,117.33 mi (1,798.16 km) |
| Ruislip to Otopeni | 1,307.54 mi (2,104.28 km) |
