| Seaford to Quarteira | 1,029.40 mi (1,656.66 km) |
| Seaford to Queluz | 947.33 mi (1,524.57 km) |
| Seaford to Reguengos de Monsaraz | 931.30 mi (1,498.78 km) |
| Seaford to Resende | 770.95 mi (1,240.72 km) |
| Seaford to Ribeira Brava | 1,522.84 mi (2,450.78 km) |
| Seaford to Ribeira Grande | 1,538.33 mi (2,475.70 km) |
| Seaford to Rio de Mouro | 947.79 mi (1,525.33 km) |
| Seaford to Rio Maior | 903.35 mi (1,453.80 km) |
| Seaford to Rio Tinto | 781.20 mi (1,257.23 km) |
| Seaford to Sabugal | 798.52 mi (1,285.09 km) |
| Seaford to Sacavem | 940.90 mi (1,514.23 km) |
| Seaford to Salvaterra de Magos | 919.62 mi (1,479.98 km) |
| Seaford to Santa Comba Dao | 818.11 mi (1,316.63 km) |
| Seaford to Santa Cruz | 1,515.65 mi (2,439.21 km) |
| Seaford to Santa Iria da Azoia | 937.26 mi (1,508.37 km) |
