| Aranjuez to Orbetello | 786.42 mi (1,265.63 km) |
| Aranjuez to Oria | 1,117.35 mi (1,798.21 km) |
| Aranjuez to Oristano | 645.28 mi (1,038.47 km) |
| Aranjuez to Orta Nova | 1,013.84 mi (1,631.62 km) |
| Aranjuez to Orte | 846.02 mi (1,361.54 km) |
| Aranjuez to Ortona | 947.75 mi (1,525.26 km) |
| Aranjuez to Orvieto | 834.20 mi (1,342.51 km) |
| Aranjuez to Orzinuovi | 779.37 mi (1,254.28 km) |
| Aranjuez to Osimo | 910.48 mi (1,465.28 km) |
| Aranjuez to Ospitaletto | 789.91 mi (1,271.24 km) |
| Aranjuez to Ostuni | 1,113.37 mi (1,791.80 km) |
| Aranjuez to Ottaviano | 950.73 mi (1,530.05 km) |
| Aranjuez to Ovada | 700.90 mi (1,127.99 km) |
| Aranjuez to Ozieri | 664.72 mi (1,069.76 km) |
| Aranjuez to Paceco | 877.46 mi (1,412.13 km) |
