| Sid to Olivenza | 1,417.86 mi (2,281.83 km) |
| Sid to Olot | 859.61 mi (1,383.40 km) |
| Sid to Onate | 1,080.97 mi (1,739.65 km) |
| Sid to Onda | 1,051.34 mi (1,691.97 km) |
| Sid to Onteniente | 1,104.41 mi (1,777.37 km) |
| Sid to Orihuela | 1,146.10 mi (1,844.47 km) |
| Sid to Osuna | 1,370.88 mi (2,206.22 km) |
| Sid to Ourense | 1,359.99 mi (2,188.68 km) |
| Sid to Oviedo | 1,242.30 mi (1,999.29 km) |
| Sid to Paiporta | 1,075.43 mi (1,730.74 km) |
| Sid to Pajara | 2,156.05 mi (3,469.82 km) |
| Sid to Palafolls | 859.41 mi (1,383.09 km) |
| Sid to Palafrugell | 833.39 mi (1,341.22 km) |
| Sid to Palamos | 836.81 mi (1,346.71 km) |
| Sid to Palencia | 1,204.40 mi (1,938.30 km) |
