| Cities | Distance |
|---|---|
| Aosta to Oria | 632.82 mi (1,018.42 km) |
| Aosta to Oristano | 407.78 mi (656.25 km) |
| Aosta to Orta Nova | 518.54 mi (834.50 km) |
| Aosta to Orte | 338.13 mi (544.16 km) |
| Aosta to Ortona | 422.14 mi (679.36 km) |
| Aosta to Orvieto | 315.69 mi (508.05 km) |
| Aosta to Orzinuovi | 128.64 mi (207.02 km) |
| Aosta to Osimo | 340.72 mi (548.33 km) |
| Aosta to Ospitaletto | 133.71 mi (215.19 km) |
| Aosta to Ostuni | 620.88 mi (999.21 km) |
| Aosta to Ottaviano | 493.12 mi (793.59 km) |
| Aosta to Ovada | 99.53 mi (160.18 km) |
| Aosta to Ozieri | 365.71 mi (588.56 km) |
| Aosta to Paceco | 599.05 mi (964.07 km) |
| Aosta to Pachino | 741.95 mi (1,194.05 km) |