| Trofarello to Octeville | 543.34 mi (874.41 km) |
| Trofarello to Oignies | 438.19 mi (705.20 km) |
| Trofarello to Oissel | 433.34 mi (697.39 km) |
| Trofarello to Olivet | 341.58 mi (549.72 km) |
| Trofarello to Ollioules | 158.11 mi (254.46 km) |
| Trofarello to Olonne-sur-Mer | 470.31 mi (756.89 km) |
| Trofarello to Oloron-Sainte-Marie | 431.72 mi (694.79 km) |
| Trofarello to Onet Village | 256.06 mi (412.10 km) |
| Trofarello to Onnaing | 419.88 mi (675.73 km) |
| Trofarello to Orange | 155.31 mi (249.94 km) |
| Trofarello to Orchies | 432.80 mi (696.53 km) |
| Trofarello to Orleans | 342.74 mi (551.58 km) |
| Trofarello to Orly | 361.99 mi (582.57 km) |
| Trofarello to Ormesson-sur-Marne | 359.29 mi (578.22 km) |
| Trofarello to Orsay | 366.66 mi (590.09 km) |
