| Prudhoe to Olivares | 1,228.95 mi (1,977.80 km) |
| Prudhoe to Olivenza | 1,150.78 mi (1,852.01 km) |
| Prudhoe to Olot | 904.48 mi (1,455.63 km) |
| Prudhoe to Onate | 824.52 mi (1,326.93 km) |
| Prudhoe to Onda | 1,038.87 mi (1,671.90 km) |
| Prudhoe to Onteniente | 1,116.58 mi (1,796.96 km) |
| Prudhoe to Orihuela | 1,166.74 mi (1,877.69 km) |
| Prudhoe to Osuna | 1,234.39 mi (1,986.56 km) |
| Prudhoe to Ourense | 913.62 mi (1,470.33 km) |
| Prudhoe to Oviedo | 821.29 mi (1,321.74 km) |
| Prudhoe to Paiporta | 1,075.28 mi (1,730.50 km) |
| Prudhoe to Pajara | 1,937.86 mi (3,118.69 km) |
| Prudhoe to Palafolls | 941.86 mi (1,515.78 km) |
| Prudhoe to Palafrugell | 929.45 mi (1,495.80 km) |
| Prudhoe to Palamos | 933.90 mi (1,502.97 km) |
