| Clayton to Quarteira | 1,193.20 mi (1,920.27 km) |
| Clayton to Queluz | 1,096.37 mi (1,764.43 km) |
| Clayton to Reguengos de Monsaraz | 1,095.55 mi (1,763.11 km) |
| Clayton to Resende | 920.92 mi (1,482.07 km) |
| Clayton to Ribeira Brava | 1,639.30 mi (2,638.20 km) |
| Clayton to Ribeira Grande | 1,573.39 mi (2,532.13 km) |
| Clayton to Rio de Mouro | 1,096.21 mi (1,764.18 km) |
| Clayton to Rio Maior | 1,052.77 mi (1,694.26 km) |
| Clayton to Rio Tinto | 925.06 mi (1,488.74 km) |
| Clayton to Sabugal | 959.96 mi (1,544.91 km) |
| Clayton to Sacavem | 1,091.10 mi (1,755.96 km) |
| Clayton to Salvaterra de Magos | 1,071.61 mi (1,724.59 km) |
| Clayton to Santa Comba Dao | 970.04 mi (1,561.13 km) |
| Clayton to Santa Cruz | 1,633.72 mi (2,629.23 km) |
| Clayton to Santa Iria da Azoia | 1,087.39 mi (1,749.99 km) |
