| Thonex to Octeville | 433.26 mi (697.27 km) |
| Thonex to Oignies | 330.32 mi (531.60 km) |
| Thonex to Oissel | 321.67 mi (517.68 km) |
| Thonex to Olivet | 232.70 mi (374.50 km) |
| Thonex to Ollioules | 210.96 mi (339.51 km) |
| Thonex to Olonne-sur-Mer | 379.99 mi (611.54 km) |
| Thonex to Oloron-Sainte-Marie | 392.09 mi (631.00 km) |
| Thonex to Onet Village | 214.99 mi (345.99 km) |
| Thonex to Onnaing | 313.83 mi (505.06 km) |
| Thonex to Orange | 156.34 mi (251.60 km) |
| Thonex to Orchies | 325.73 mi (524.22 km) |
| Thonex to Orleans | 233.64 mi (376.01 km) |
| Thonex to Orly | 250.24 mi (402.72 km) |
| Thonex to Ormesson-sur-Marne | 247.53 mi (398.36 km) |
| Thonex to Orsay | 255.00 mi (410.39 km) |
