| Olton to Olivares | 1,058.89 mi (1,704.12 km) |
| Olton to Olivenza | 983.41 mi (1,582.65 km) |
| Olton to Olot | 736.26 mi (1,184.89 km) |
| Olton to Onate | 650.39 mi (1,046.71 km) |
| Olton to Onda | 865.05 mi (1,392.16 km) |
| Olton to Onteniente | 942.49 mi (1,516.78 km) |
| Olton to Orihuela | 992.49 mi (1,597.27 km) |
| Olton to Osuna | 1,062.56 mi (1,710.03 km) |
| Olton to Ourense | 752.61 mi (1,211.20 km) |
| Olton to Oviedo | 654.25 mi (1,052.92 km) |
| Olton to Paiporta | 901.32 mi (1,450.54 km) |
| Olton to Pajara | 1,779.88 mi (2,864.44 km) |
| Olton to Palafolls | 773.93 mi (1,245.52 km) |
| Olton to Palafrugell | 762.96 mi (1,227.87 km) |
| Olton to Palamos | 767.24 mi (1,234.75 km) |
