| Knowsley to Olivares | 1,118.97 mi (1,800.80 km) |
| Knowsley to Olivenza | 1,039.77 mi (1,673.35 km) |
| Knowsley to Olot | 816.40 mi (1,313.86 km) |
| Knowsley to Onate | 719.98 mi (1,158.70 km) |
| Knowsley to Onda | 939.74 mi (1,512.37 km) |
| Knowsley to Onteniente | 1,016.23 mi (1,635.46 km) |
| Knowsley to Orihuela | 1,065.42 mi (1,714.63 km) |
| Knowsley to Osuna | 1,125.62 mi (1,811.51 km) |
| Knowsley to Ourense | 801.71 mi (1,290.23 km) |
| Knowsley to Oviedo | 710.38 mi (1,143.24 km) |
| Knowsley to Paiporta | 975.57 mi (1,570.03 km) |
| Knowsley to Pajara | 1,825.95 mi (2,938.58 km) |
| Knowsley to Palafolls | 854.16 mi (1,374.64 km) |
| Knowsley to Palafrugell | 843.73 mi (1,357.85 km) |
| Knowsley to Palamos | 847.94 mi (1,364.63 km) |
