| Aiken to Quarteira | 4,051.29 mi (6,519.93 km) |
| Aiken to Queluz | 3,952.32 mi (6,360.65 km) |
| Aiken to Reguengos de Monsaraz | 4,048.28 mi (6,515.07 km) |
| Aiken to Resende | 3,965.87 mi (6,382.46 km) |
| Aiken to Ribeira Brava | 3,678.98 mi (5,920.74 km) |
| Aiken to Ribeira Grande | 3,121.45 mi (5,023.48 km) |
| Aiken to Rio de Mouro | 3,948.55 mi (6,354.58 km) |
| Aiken to Rio Maior | 3,956.22 mi (6,366.91 km) |
| Aiken to Rio Tinto | 3,934.84 mi (6,332.52 km) |
| Aiken to Sabugal | 4,026.26 mi (6,479.64 km) |
| Aiken to Sacavem | 3,959.56 mi (6,372.29 km) |
| Aiken to Salvaterra de Magos | 3,970.91 mi (6,390.56 km) |
| Aiken to Santa Comba Dao | 3,973.66 mi (6,394.98 km) |
| Aiken to Santa Cruz | 3,692.65 mi (5,942.74 km) |
| Aiken to Santa Iria da Azoia | 3,959.26 mi (6,371.82 km) |
