| Riverdale to Quarteira | 4,188.25 mi (6,740.34 km) |
| Riverdale to Queluz | 4,087.40 mi (6,578.03 km) |
| Riverdale to Reguengos de Monsaraz | 4,183.12 mi (6,732.08 km) |
| Riverdale to Resende | 4,096.84 mi (6,593.22 km) |
| Riverdale to Ribeira Brava | 3,824.54 mi (6,155.01 km) |
| Riverdale to Ribeira Grande | 3,263.25 mi (5,251.70 km) |
| Riverdale to Rio de Mouro | 4,083.63 mi (6,571.97 km) |
| Riverdale to Rio Maior | 4,090.31 mi (6,582.71 km) |
| Riverdale to Rio Tinto | 4,065.94 mi (6,543.49 km) |
| Riverdale to Sabugal | 4,158.04 mi (6,691.72 km) |
| Riverdale to Sacavem | 4,094.51 mi (6,589.48 km) |
| Riverdale to Salvaterra de Magos | 4,105.41 mi (6,607.01 km) |
| Riverdale to Santa Comba Dao | 4,105.79 mi (6,607.64 km) |
| Riverdale to Santa Cruz | 3,838.13 mi (6,176.87 km) |
| Riverdale to Santa Iria da Azoia | 4,094.13 mi (6,588.87 km) |
