| Clemson to Quarteira | 4,071.89 mi (6,553.07 km) |
| Clemson to Queluz | 3,970.36 mi (6,389.68 km) |
| Clemson to Reguengos de Monsaraz | 4,066.00 mi (6,543.59 km) |
| Clemson to Resende | 3,978.64 mi (6,403.00 km) |
| Clemson to Ribeira Brava | 3,713.29 mi (5,975.96 km) |
| Clemson to Ribeira Grande | 3,149.42 mi (5,068.51 km) |
| Clemson to Rio de Mouro | 3,966.59 mi (6,383.62 km) |
| Clemson to Rio Maior | 3,972.95 mi (6,393.84 km) |
| Clemson to Rio Tinto | 3,947.77 mi (6,353.32 km) |
| Clemson to Sabugal | 4,040.03 mi (6,501.81 km) |
| Clemson to Sacavem | 3,977.43 mi (6,401.05 km) |
| Clemson to Salvaterra de Magos | 3,988.17 mi (6,418.35 km) |
| Clemson to Santa Comba Dao | 3,987.88 mi (6,417.87 km) |
| Clemson to Santa Cruz | 3,726.80 mi (5,997.71 km) |
| Clemson to Santa Iria da Azoia | 3,977.02 mi (6,400.40 km) |
