| Monsummano to Octeville | 710.19 mi (1,142.94 km) |
| Monsummano to Oignies | 585.12 mi (941.66 km) |
| Monsummano to Oissel | 596.04 mi (959.23 km) |
| Monsummano to Olivet | 509.70 mi (820.28 km) |
| Monsummano to Ollioules | 254.04 mi (408.84 km) |
| Monsummano to Olonne-sur-Mer | 639.25 mi (1,028.77 km) |
| Monsummano to Oloron-Sainte-Marie | 573.66 mi (923.21 km) |
| Monsummano to Onet Village | 409.18 mi (658.51 km) |
| Monsummano to Onnaing | 563.49 mi (906.85 km) |
| Monsummano to Orange | 299.07 mi (481.30 km) |
| Monsummano to Orchies | 578.13 mi (930.42 km) |
| Monsummano to Orleans | 510.68 mi (821.86 km) |
| Monsummano to Orly | 524.07 mi (843.42 km) |
| Monsummano to Ormesson-sur-Marne | 520.55 mi (837.75 km) |
| Monsummano to Orsay | 529.74 mi (852.53 km) |
