| Preston to Quarteira | 1,181.72 mi (1,901.80 km) |
| Preston to Queluz | 1,082.21 mi (1,741.65 km) |
| Preston to Reguengos de Monsaraz | 1,084.43 mi (1,745.22 km) |
| Preston to Resende | 907.58 mi (1,460.61 km) |
| Preston to Ribeira Brava | 1,618.53 mi (2,604.77 km) |
| Preston to Ribeira Grande | 1,543.06 mi (2,483.31 km) |
| Preston to Rio de Mouro | 1,081.94 mi (1,741.21 km) |
| Preston to Rio Maior | 1,038.82 mi (1,671.82 km) |
| Preston to Rio Tinto | 910.57 mi (1,465.42 km) |
| Preston to Sabugal | 948.72 mi (1,526.81 km) |
| Preston to Sacavem | 1,077.18 mi (1,733.56 km) |
| Preston to Salvaterra de Magos | 1,058.10 mi (1,702.84 km) |
| Preston to Santa Comba Dao | 956.87 mi (1,539.93 km) |
| Preston to Santa Cruz | 1,613.21 mi (2,596.21 km) |
| Preston to Santa Iria da Azoia | 1,073.47 mi (1,727.58 km) |
