| Aiud to Octeville | 1,189.86 mi (1,914.90 km) |
| Aiud to Oignies | 990.03 mi (1,593.30 km) |
| Aiud to Oissel | 1,066.51 mi (1,716.37 km) |
| Aiud to Olivet | 1,029.01 mi (1,656.03 km) |
| Aiud to Ollioules | 902.64 mi (1,452.67 km) |
| Aiud to Olonne-sur-Mer | 1,209.37 mi (1,946.30 km) |
| Aiud to Oloron-Sainte-Marie | 1,208.36 mi (1,944.67 km) |
| Aiud to Onet Village | 1,032.12 mi (1,661.04 km) |
| Aiud to Onnaing | 962.87 mi (1,549.59 km) |
| Aiud to Orange | 930.56 mi (1,497.59 km) |
| Aiud to Orchies | 979.21 mi (1,575.88 km) |
| Aiud to Orleans | 1,028.52 mi (1,655.25 km) |
| Aiud to Orly | 1,006.06 mi (1,619.10 km) |
| Aiud to Ormesson-sur-Marne | 999.53 mi (1,608.58 km) |
| Aiud to Orsay | 1,015.34 mi (1,634.04 km) |