| Pont-y-pwl to Olivares | 998.64 mi (1,607.16 km) |
| Pont-y-pwl to Olivenza | 920.49 mi (1,481.39 km) |
| Pont-y-pwl to Olot | 707.15 mi (1,138.04 km) |
| Pont-y-pwl to Onate | 599.72 mi (965.16 km) |
| Pont-y-pwl to Onda | 821.97 mi (1,322.84 km) |
| Pont-y-pwl to Onteniente | 897.68 mi (1,444.67 km) |
| Pont-y-pwl to Orihuela | 946.33 mi (1,522.98 km) |
| Pont-y-pwl to Osuna | 1,004.79 mi (1,617.06 km) |
| Pont-y-pwl to Ourense | 685.49 mi (1,103.19 km) |
| Pont-y-pwl to Oviedo | 590.98 mi (951.09 km) |
| Pont-y-pwl to Paiporta | 857.42 mi (1,379.89 km) |
| Pont-y-pwl to Pajara | 1,711.87 mi (2,754.98 km) |
| Pont-y-pwl to Palafolls | 745.05 mi (1,199.04 km) |
| Pont-y-pwl to Palafrugell | 736.37 mi (1,185.08 km) |
| Pont-y-pwl to Palamos | 740.35 mi (1,191.48 km) |
