| Allouez to Octeville | 3,851.59 mi (6,198.54 km) |
| Allouez to Oignies | 3,996.52 mi (6,431.78 km) |
| Allouez to Oissel | 3,966.68 mi (6,383.76 km) |
| Allouez to Olivet | 4,053.00 mi (6,522.68 km) |
| Allouez to Ollioules | 4,397.77 mi (7,077.52 km) |
| Allouez to Olonne-sur-Mer | 3,957.58 mi (6,369.11 km) |
| Allouez to Oloron-Sainte-Marie | 4,132.14 mi (6,650.04 km) |
| Allouez to Onet Village | 4,216.81 mi (6,786.30 km) |
| Allouez to Onnaing | 4,021.94 mi (6,472.69 km) |
| Allouez to Orange | 4,314.84 mi (6,944.06 km) |
| Allouez to Orchies | 4,005.60 mi (6,446.39 km) |
| Allouez to Orleans | 4,051.86 mi (6,520.84 km) |
| Allouez to Orly | 4,038.60 mi (6,499.49 km) |
| Allouez to Ormesson-sur-Marne | 4,042.56 mi (6,505.87 km) |
| Allouez to Orsay | 4,032.48 mi (6,489.66 km) |
