| Aranda de Duero to Orbetello | 764.90 mi (1,231.00 km) |
| Aranda de Duero to Oria | 1,110.18 mi (1,786.66 km) |
| Aranda de Duero to Oristano | 653.11 mi (1,051.08 km) |
| Aranda de Duero to Orta Nova | 1,001.70 mi (1,612.08 km) |
| Aranda de Duero to Orte | 824.68 mi (1,327.20 km) |
| Aranda de Duero to Ortona | 927.66 mi (1,492.92 km) |
| Aranda de Duero to Orvieto | 810.34 mi (1,304.12 km) |
| Aranda de Duero to Orzinuovi | 727.59 mi (1,170.94 km) |
| Aranda de Duero to Osimo | 880.51 mi (1,417.05 km) |
| Aranda de Duero to Ospitaletto | 737.08 mi (1,186.22 km) |
| Aranda de Duero to Ostuni | 1,104.58 mi (1,777.65 km) |
| Aranda de Duero to Ottaviano | 943.17 mi (1,517.88 km) |
| Aranda de Duero to Ovada | 653.33 mi (1,051.44 km) |
| Aranda de Duero to Ozieri | 663.93 mi (1,068.50 km) |
| Aranda de Duero to Paceco | 896.86 mi (1,443.35 km) |
