| Issum to Queluz | 1,163.45 mi (1,872.39 km) |
| Issum to Reguengos de Monsaraz | 1,130.51 mi (1,819.38 km) |
| Issum to Resende | 991.98 mi (1,596.44 km) |
| Issum to Ribeira Brava | 1,757.94 mi (2,829.14 km) |
| Issum to Ribeira Grande | 1,811.96 mi (2,916.07 km) |
| Issum to Rio de Mouro | 1,164.54 mi (1,874.15 km) |
| Issum to Rio Maior | 1,120.39 mi (1,803.09 km) |
| Issum to Rio Tinto | 1,007.69 mi (1,621.72 km) |
| Issum to Sabugal | 1,006.04 mi (1,619.06 km) |
| Issum to Sacavem | 1,156.00 mi (1,860.40 km) |
| Issum to Salvaterra de Magos | 1,133.46 mi (1,824.12 km) |
| Issum to Santa Comba Dao | 1,035.40 mi (1,666.32 km) |
| Issum to Santa Cruz | 1,749.58 mi (2,815.68 km) |
| Issum to Santa Iria da Azoia | 1,152.53 mi (1,854.82 km) |
| Issum to Santarem | 1,118.21 mi (1,799.58 km) |
