| Southborough to Quarteira | 1,056.74 mi (1,700.66 km) |
| Southborough to Queluz | 973.95 mi (1,567.42 km) |
| Southborough to Reguengos de Monsaraz | 958.62 mi (1,542.75 km) |
| Southborough to Resende | 797.47 mi (1,283.40 km) |
| Southborough to Ribeira Brava | 1,547.83 mi (2,490.99 km) |
| Southborough to Ribeira Grande | 1,556.58 mi (2,505.07 km) |
| Southborough to Rio de Mouro | 974.38 mi (1,568.12 km) |
| Southborough to Rio Maior | 929.96 mi (1,496.63 km) |
| Southborough to Rio Tinto | 807.38 mi (1,299.36 km) |
| Southborough to Sabugal | 825.65 mi (1,328.75 km) |
| Southborough to Sacavem | 967.58 mi (1,557.16 km) |
| Southborough to Salvaterra de Magos | 946.37 mi (1,523.04 km) |
| Southborough to Santa Comba Dao | 844.79 mi (1,359.56 km) |
| Southborough to Santa Cruz | 1,540.75 mi (2,479.59 km) |
| Southborough to Santa Iria da Azoia | 963.93 mi (1,551.29 km) |
