| Adel to Olivares | 1,155.97 mi (1,860.36 km) |
| Adel to Olivenza | 1,079.47 mi (1,737.24 km) |
| Adel to Olot | 827.44 mi (1,331.63 km) |
| Adel to Onate | 748.24 mi (1,204.18 km) |
| Adel to Onda | 961.44 mi (1,547.28 km) |
| Adel to Onteniente | 1,039.27 mi (1,672.54 km) |
| Adel to Orihuela | 1,089.56 mi (1,753.47 km) |
| Adel to Osuna | 1,160.20 mi (1,867.16 km) |
| Adel to Ourense | 845.75 mi (1,361.10 km) |
| Adel to Oviedo | 750.04 mi (1,207.08 km) |
| Adel to Paiporta | 997.90 mi (1,605.97 km) |
| Adel to Pajara | 1,872.04 mi (3,012.76 km) |
| Adel to Palafolls | 864.88 mi (1,391.89 km) |
| Adel to Palafrugell | 852.75 mi (1,372.37 km) |
| Adel to Palamos | 857.17 mi (1,379.48 km) |
