| Alatri to Octeville | 903.57 mi (1,454.16 km) |
| Alatri to Oignies | 780.04 mi (1,255.35 km) |
| Alatri to Oissel | 791.01 mi (1,273.00 km) |
| Alatri to Olivet | 702.06 mi (1,129.86 km) |
| Alatri to Ollioules | 394.35 mi (634.64 km) |
| Alatri to Olonne-sur-Mer | 818.23 mi (1,316.81 km) |
| Alatri to Oloron-Sainte-Marie | 717.35 mi (1,154.47 km) |
| Alatri to Onet Village | 572.05 mi (920.62 km) |
| Alatri to Onnaing | 757.94 mi (1,219.79 km) |
| Alatri to Orange | 462.42 mi (744.20 km) |
| Alatri to Orchies | 772.83 mi (1,243.74 km) |
| Alatri to Orleans | 703.19 mi (1,131.67 km) |
| Alatri to Orly | 719.11 mi (1,157.29 km) |
| Alatri to Ormesson-sur-Marne | 715.73 mi (1,151.86 km) |
| Alatri to Orsay | 724.54 mi (1,166.04 km) |
