| Ialysos to Octeville | 1,742.89 mi (2,804.91 km) |
| Ialysos to Oignies | 1,579.11 mi (2,541.34 km) |
| Ialysos to Oissel | 1,621.58 mi (2,609.68 km) |
| Ialysos to Olivet | 1,548.85 mi (2,492.64 km) |
| Ialysos to Ollioules | 1,267.30 mi (2,039.53 km) |
| Ialysos to Olonne-sur-Mer | 1,686.17 mi (2,713.64 km) |
| Ialysos to Oloron-Sainte-Marie | 1,587.59 mi (2,554.99 km) |
| Ialysos to Onet Village | 1,445.14 mi (2,325.73 km) |
| Ialysos to Onnaing | 1,553.07 mi (2,499.42 km) |
| Ialysos to Orange | 1,335.03 mi (2,148.52 km) |
| Ialysos to Orchies | 1,569.61 mi (2,526.04 km) |
| Ialysos to Orleans | 1,549.45 mi (2,493.60 km) |
| Ialysos to Orly | 1,551.07 mi (2,496.20 km) |
| Ialysos to Ormesson-sur-Marne | 1,546.18 mi (2,488.33 km) |
| Ialysos to Orsay | 1,558.39 mi (2,507.99 km) |
