| Staines-upon-Thames to Noventa Vicentina | 695.93 mi (1,120.00 km) |
| Staines-upon-Thames to Novi di Modena | 692.02 mi (1,113.70 km) |
| Staines-upon-Thames to Novi Ligure | 628.91 mi (1,012.13 km) |
| Staines-upon-Thames to Nuoro | 900.58 mi (1,449.34 km) |
| Staines-upon-Thames to Occhiobello | 714.58 mi (1,150.01 km) |
| Staines-upon-Thames to Oderzo | 709.41 mi (1,141.68 km) |
| Staines-upon-Thames to Oggiono | 595.23 mi (957.92 km) |
| Staines-upon-Thames to Olbia | 868.57 mi (1,397.83 km) |
| Staines-upon-Thames to Oleggio | 580.25 mi (933.82 km) |
| Staines-upon-Thames to Olgiate Comasco | 582.17 mi (936.92 km) |
| Staines-upon-Thames to Olgiate Olona | 586.83 mi (944.42 km) |
| Staines-upon-Thames to Omegna | 558.76 mi (899.23 km) |
| Staines-upon-Thames to Opera | 610.47 mi (982.46 km) |
| Staines-upon-Thames to Oppeano | 682.57 mi (1,098.48 km) |
| Staines-upon-Thames to Orbassano | 577.60 mi (929.55 km) |
