| Castelsarrasin to Novi di Modena | 486.22 mi (782.49 km) |
| Castelsarrasin to Novi Ligure | 382.16 mi (615.03 km) |
| Castelsarrasin to Nuoro | 493.20 mi (793.72 km) |
| Castelsarrasin to Occhiobello | 519.56 mi (836.15 km) |
| Castelsarrasin to Oderzo | 569.45 mi (916.44 km) |
| Castelsarrasin to Oggiono | 420.72 mi (677.09 km) |
| Castelsarrasin to Olbia | 478.74 mi (770.45 km) |
| Castelsarrasin to Oleggio | 384.12 mi (618.18 km) |
| Castelsarrasin to Olgiate Comasco | 402.81 mi (648.27 km) |
| Castelsarrasin to Olgiate Olona | 396.41 mi (637.95 km) |
| Castelsarrasin to Omegna | 378.66 mi (609.39 km) |
| Castelsarrasin to Opera | 408.68 mi (657.71 km) |
| Castelsarrasin to Oppeano | 502.37 mi (808.48 km) |
| Castelsarrasin to Orbassano | 323.63 mi (520.83 km) |
| Castelsarrasin to Orbetello | 520.18 mi (837.14 km) |
