| Tournai to Novi di Modena | 526.33 mi (847.04 km) |
| Tournai to Novi Ligure | 475.32 mi (764.96 km) |
| Tournai to Nuoro | 766.44 mi (1,233.46 km) |
| Tournai to Occhiobello | 546.21 mi (879.04 km) |
| Tournai to Oderzo | 535.06 mi (861.09 km) |
| Tournai to Oggiono | 431.47 mi (694.38 km) |
| Tournai to Olbia | 730.78 mi (1,176.08 km) |
| Tournai to Oleggio | 421.88 mi (678.96 km) |
| Tournai to Olgiate Comasco | 420.50 mi (676.72 km) |
| Tournai to Olgiate Olona | 426.68 mi (686.68 km) |
| Tournai to Omegna | 399.83 mi (643.46 km) |
| Tournai to Opera | 450.06 mi (724.30 km) |
| Tournai to Oppeano | 513.77 mi (826.83 km) |
| Tournai to Orbassano | 431.90 mi (695.08 km) |
| Tournai to Orbetello | 674.98 mi (1,086.27 km) |
