| Clemson to Nyon | 4,496.30 mi (7,236.09 km) |
| Clemson to Oberriet | 4,610.14 mi (7,419.30 km) |
| Clemson to Obersiggenthal | 4,551.45 mi (7,324.85 km) |
| Clemson to Oberwil | 4,519.59 mi (7,273.57 km) |
| Clemson to Oberwingert | 4,570.57 mi (7,355.62 km) |
| Clemson to Oftringen | 4,540.71 mi (7,307.57 km) |
| Clemson to Olten | 4,539.02 mi (7,304.84 km) |
| Clemson to Onex | 4,496.36 mi (7,236.19 km) |
| Clemson to Opfikon | 4,564.61 mi (7,346.03 km) |
| Clemson to Ostermundigen | 4,533.36 mi (7,295.73 km) |
| Clemson to Payerne | 4,513.71 mi (7,264.11 km) |
| Clemson to Pfaffikon | 4,575.73 mi (7,363.93 km) |
| Clemson to Plan-les-Ouates | 4,497.57 mi (7,238.13 km) |
| Clemson to Pratteln | 4,525.63 mi (7,283.29 km) |
| Clemson to Prilly | 4,507.73 mi (7,254.48 km) |
