| Mentana to Olivenza | 1,062.57 mi (1,710.04 km) |
| Mentana to Olot | 520.73 mi (838.04 km) |
| Mentana to Onate | 769.37 mi (1,238.18 km) |
| Mentana to Onda | 687.58 mi (1,106.56 km) |
| Mentana to Onteniente | 730.55 mi (1,175.71 km) |
| Mentana to Orihuela | 767.64 mi (1,235.40 km) |
| Mentana to Osuna | 998.52 mi (1,606.96 km) |
| Mentana to Ourense | 1,048.04 mi (1,686.65 km) |
| Mentana to Oviedo | 941.93 mi (1,515.89 km) |
| Mentana to Paiporta | 706.51 mi (1,137.02 km) |
| Mentana to Pajara | 1,769.90 mi (2,848.37 km) |
| Mentana to Palafolls | 509.83 mi (820.49 km) |
| Mentana to Palafrugell | 487.17 mi (784.02 km) |
| Mentana to Palamos | 489.29 mi (787.44 km) |
| Mentana to Palencia | 880.58 mi (1,417.16 km) |
