| Helensburgh to Quarteira | 1,318.52 mi (2,121.95 km) |
| Helensburgh to Queluz | 1,210.97 mi (1,948.86 km) |
| Helensburgh to Reguengos de Monsaraz | 1,222.86 mi (1,968.01 km) |
| Helensburgh to Resende | 1,040.47 mi (1,674.48 km) |
| Helensburgh to Ribeira Brava | 1,717.18 mi (2,763.54 km) |
| Helensburgh to Ribeira Grande | 1,581.68 mi (2,545.48 km) |
| Helensburgh to Rio de Mouro | 1,210.30 mi (1,947.79 km) |
| Helensburgh to Rio Maior | 1,168.61 mi (1,880.69 km) |
| Helensburgh to Rio Tinto | 1,039.65 mi (1,673.15 km) |
| Helensburgh to Sabugal | 1,087.70 mi (1,750.48 km) |
| Helensburgh to Sacavem | 1,206.77 mi (1,942.11 km) |
| Helensburgh to Salvaterra de Magos | 1,189.18 mi (1,913.79 km) |
| Helensburgh to Santa Comba Dao | 1,089.86 mi (1,753.96 km) |
| Helensburgh to Santa Cruz | 1,713.10 mi (2,756.96 km) |
| Helensburgh to Santa Iria da Azoia | 1,203.09 mi (1,936.18 km) |
