| Fort William to Octeville | 517.03 mi (832.09 km) |
| Fort William to Oignies | 549.28 mi (883.98 km) |
| Fort William to Oissel | 576.59 mi (927.93 km) |
| Fort William to Olivet | 684.99 mi (1,102.39 km) |
| Fort William to Ollioules | 1,060.14 mi (1,706.12 km) |
| Fort William to Olonne-sur-Mer | 724.51 mi (1,165.99 km) |
| Fort William to Oloron-Sainte-Marie | 961.87 mi (1,547.99 km) |
| Fort William to Onet Village | 923.01 mi (1,485.44 km) |
| Fort William to Onnaing | 569.02 mi (915.75 km) |
| Fort William to Orange | 976.37 mi (1,571.31 km) |
| Fort William to Orchies | 555.17 mi (893.46 km) |
| Fort William to Orleans | 682.69 mi (1,098.68 km) |
| Fort William to Orly | 639.10 mi (1,028.53 km) |
| Fort William to Ormesson-sur-Marne | 639.48 mi (1,029.14 km) |
| Fort William to Orsay | 637.83 mi (1,026.50 km) |
