| Altamont to Olivares | 5,605.82 mi (9,021.69 km) |
| Altamont to Olivenza | 5,506.36 mi (8,861.63 km) |
| Altamont to Olot | 5,652.89 mi (9,097.45 km) |
| Altamont to Onate | 5,448.30 mi (8,768.19 km) |
| Altamont to Onda | 5,682.06 mi (9,144.40 km) |
| Altamont to Onteniente | 5,731.00 mi (9,223.16 km) |
| Altamont to Orihuela | 5,758.35 mi (9,267.17 km) |
| Altamont to Osuna | 5,654.00 mi (9,099.24 km) |
| Altamont to Ourense | 5,296.22 mi (8,523.44 km) |
| Altamont to Oviedo | 5,315.63 mi (8,554.68 km) |
| Altamont to Paiporta | 5,705.27 mi (9,181.75 km) |
| Altamont to Pajara | 5,736.01 mi (9,231.22 km) |
| Altamont to Palafolls | 5,689.07 mi (9,155.68 km) |
| Altamont to Palafrugell | 5,688.61 mi (9,154.93 km) |
| Altamont to Palamos | 5,691.44 mi (9,159.49 km) |
