| Casas Adobes to Olivares | 5,610.52 mi (9,029.25 km) |
| Casas Adobes to Olivenza | 5,518.65 mi (8,881.41 km) |
| Casas Adobes to Olot | 5,783.69 mi (9,307.95 km) |
| Casas Adobes to Onate | 5,549.52 mi (8,931.09 km) |
| Casas Adobes to Onda | 5,765.28 mi (9,278.32 km) |
| Casas Adobes to Onteniente | 5,798.40 mi (9,331.62 km) |
| Casas Adobes to Orihuela | 5,814.49 mi (9,357.51 km) |
| Casas Adobes to Osuna | 5,665.21 mi (9,117.27 km) |
| Casas Adobes to Ourense | 5,347.44 mi (8,605.87 km) |
| Casas Adobes to Oviedo | 5,394.59 mi (8,681.75 km) |
| Casas Adobes to Paiporta | 5,781.13 mi (9,303.84 km) |
| Casas Adobes to Pajara | 5,563.95 mi (8,954.31 km) |
| Casas Adobes to Palafolls | 5,816.41 mi (9,360.61 km) |
| Casas Adobes to Palafrugell | 5,822.08 mi (9,369.73 km) |
| Casas Adobes to Palamos | 5,823.85 mi (9,372.57 km) |
