| Keystone to Quarteira | 4,271.16 mi (6,873.77 km) |
| Keystone to Queluz | 4,180.38 mi (6,727.67 km) |
| Keystone to Reguengos de Monsaraz | 4,276.79 mi (6,882.83 km) |
| Keystone to Resende | 4,209.12 mi (6,773.92 km) |
| Keystone to Ribeira Brava | 3,856.68 mi (6,206.72 km) |
| Keystone to Ribeira Grande | 3,324.27 mi (5,349.89 km) |
| Keystone to Rio de Mouro | 4,176.62 mi (6,721.62 km) |
| Keystone to Rio Maior | 4,188.11 mi (6,740.11 km) |
| Keystone to Rio Tinto | 4,177.79 mi (6,723.50 km) |
| Keystone to Sabugal | 4,266.35 mi (6,866.02 km) |
| Keystone to Sacavem | 4,188.08 mi (6,740.07 km) |
| Keystone to Salvaterra de Magos | 4,201.17 mi (6,761.12 km) |
| Keystone to Santa Comba Dao | 4,212.72 mi (6,779.72 km) |
| Keystone to Santa Cruz | 3,870.78 mi (6,229.42 km) |
| Keystone to Santa Iria da Azoia | 4,188.12 mi (6,740.12 km) |
