| Twickenham to Olivares | 1,010.26 mi (1,625.85 km) |
| Twickenham to Olivenza | 940.60 mi (1,513.75 km) |
| Twickenham to Olot | 653.94 mi (1,052.41 km) |
| Twickenham to Onate | 589.53 mi (948.76 km) |
| Twickenham to Onda | 793.65 mi (1,277.25 km) |
| Twickenham to Onteniente | 872.53 mi (1,404.19 km) |
| Twickenham to Orihuela | 923.80 mi (1,486.71 km) |
| Twickenham to Osuna | 1,009.46 mi (1,624.57 km) |
| Twickenham to Ourense | 722.10 mi (1,162.11 km) |
| Twickenham to Oviedo | 614.96 mi (989.69 km) |
| Twickenham to Paiporta | 830.59 mi (1,336.71 km) |
| Twickenham to Pajara | 1,748.08 mi (2,813.26 km) |
| Twickenham to Palafolls | 691.29 mi (1,112.53 km) |
| Twickenham to Palafrugell | 678.94 mi (1,092.64 km) |
| Twickenham to Palamos | 683.37 mi (1,099.78 km) |
