| Castelnaudary to Novi di Modena | 456.78 mi (735.11 km) |
| Castelnaudary to Novi Ligure | 353.51 mi (568.91 km) |
| Castelnaudary to Nuoro | 432.66 mi (696.30 km) |
| Castelnaudary to Occhiobello | 489.88 mi (788.39 km) |
| Castelnaudary to Oderzo | 545.62 mi (878.09 km) |
| Castelnaudary to Oggiono | 401.82 mi (646.67 km) |
| Castelnaudary to Olbia | 420.63 mi (676.94 km) |
| Castelnaudary to Oleggio | 365.03 mi (587.45 km) |
| Castelnaudary to Olgiate Comasco | 384.83 mi (619.33 km) |
| Castelnaudary to Olgiate Olona | 377.05 mi (606.80 km) |
| Castelnaudary to Omegna | 363.26 mi (584.61 km) |
| Castelnaudary to Opera | 385.98 mi (621.18 km) |
| Castelnaudary to Oppeano | 476.11 mi (766.22 km) |
| Castelnaudary to Orbassano | 300.24 mi (483.19 km) |
| Castelnaudary to Orbetello | 472.44 mi (760.32 km) |
