| Clemmons to Oliveira de Frades | 3,812.27 mi (6,135.25 km) |
| Clemmons to Oliveira do Bairro | 3,801.48 mi (6,117.89 km) |
| Clemmons to Oliveira do Hospital | 3,836.70 mi (6,174.57 km) |
| Clemmons to Ourem | 3,819.18 mi (6,146.38 km) |
| Clemmons to Ovar | 3,786.60 mi (6,093.94 km) |
| Clemmons to Pacos de Ferreira | 3,788.62 mi (6,097.20 km) |
| Clemmons to Palmela | 3,829.43 mi (6,162.87 km) |
| Clemmons to Paredes | 3,793.45 mi (6,104.96 km) |
| Clemmons to Paredes de Coura | 3,765.78 mi (6,060.43 km) |
| Clemmons to Penacova | 3,818.09 mi (6,144.63 km) |
| Clemmons to Penafiel | 3,795.72 mi (6,108.61 km) |
| Clemmons to Peniche | 3,786.63 mi (6,093.98 km) |
| Clemmons to Peso da Regua | 3,821.47 mi (6,150.07 km) |
| Clemmons to Pinhal Novo | 3,827.11 mi (6,159.14 km) |
| Clemmons to Pinhel | 3,865.39 mi (6,220.74 km) |
