| Ath to Oignies | 35.44 mi (57.04 km) |
| Ath to Oissel | 147.93 mi (238.07 km) |
| Ath to Olivet | 207.98 mi (334.71 km) |
| Ath to Ollioules | 525.83 mi (846.24 km) |
| Ath to Olonne-sur-Mer | 378.76 mi (609.55 km) |
| Ath to Oloron-Sainte-Marie | 552.59 mi (889.31 km) |
| Ath to Onet Village | 435.35 mi (700.63 km) |
| Ath to Onnaing | 17.47 mi (28.11 km) |
| Ath to Orange | 450.25 mi (724.61 km) |
| Ath to Orchies | 24.95 mi (40.15 km) |
| Ath to Orleans | 205.37 mi (330.52 km) |
| Ath to Orly | 143.23 mi (230.51 km) |
| Ath to Ormesson-sur-Marne | 137.89 mi (221.92 km) |
| Ath to Orsay | 150.20 mi (241.72 km) |
| Ath to Orthez | 536.61 mi (863.58 km) |
