| Trento to Octeville | 639.73 mi (1,029.55 km) |
| Trento to Oignies | 481.29 mi (774.57 km) |
| Trento to Oissel | 517.61 mi (833.02 km) |
| Trento to Olivet | 451.63 mi (726.84 km) |
| Trento to Ollioules | 328.68 mi (528.97 km) |
| Trento to Olonne-sur-Mer | 615.44 mi (990.45 km) |
| Trento to Oloron-Sainte-Marie | 608.96 mi (980.03 km) |
| Trento to Onet Village | 430.92 mi (693.50 km) |
| Trento to Onnaing | 456.66 mi (734.92 km) |
| Trento to Orange | 335.08 mi (539.26 km) |
| Trento to Orchies | 472.67 mi (760.69 km) |
| Trento to Orleans | 451.84 mi (727.17 km) |
| Trento to Orly | 447.58 mi (720.32 km) |
| Trento to Ormesson-sur-Marne | 442.48 mi (712.10 km) |
| Trento to Orsay | 455.22 mi (732.61 km) |
