| Clemson to Noventa Vicentina | 4,758.31 mi (7,657.76 km) |
| Clemson to Novi di Modena | 4,743.96 mi (7,634.67 km) |
| Clemson to Novi Ligure | 4,656.45 mi (7,493.83 km) |
| Clemson to Nuoro | 4,825.22 mi (7,765.44 km) |
| Clemson to Occhiobello | 4,772.30 mi (7,680.28 km) |
| Clemson to Oderzo | 4,782.57 mi (7,696.80 km) |
| Clemson to Oggiono | 4,648.71 mi (7,481.38 km) |
| Clemson to Olbia | 4,812.87 mi (7,745.56 km) |
| Clemson to Oleggio | 4,623.57 mi (7,440.91 km) |
| Clemson to Olgiate Comasco | 4,632.24 mi (7,454.87 km) |
| Clemson to Olgiate Olona | 4,633.32 mi (7,456.61 km) |
| Clemson to Omegna | 4,605.21 mi (7,411.37 km) |
| Clemson to Opera | 4,655.54 mi (7,492.37 km) |
| Clemson to Oppeano | 4,742.79 mi (7,632.79 km) |
| Clemson to Orbassano | 4,594.13 mi (7,393.53 km) |
