| Rock Island to Quarteira | 4,248.05 mi (6,836.57 km) |
| Rock Island to Queluz | 4,133.05 mi (6,651.51 km) |
| Rock Island to Reguengos de Monsaraz | 4,224.97 mi (6,799.43 km) |
| Rock Island to Resende | 4,109.31 mi (6,613.29 km) |
| Rock Island to Ribeira Brava | 3,977.22 mi (6,400.71 km) |
| Rock Island to Ribeira Grande | 3,388.09 mi (5,452.60 km) |
| Rock Island to Rio de Mouro | 4,129.37 mi (6,645.58 km) |
| Rock Island to Rio Maior | 4,127.70 mi (6,642.90 km) |
| Rock Island to Rio Tinto | 4,080.01 mi (6,566.14 km) |
| Rock Island to Sabugal | 4,175.65 mi (6,720.05 km) |
| Rock Island to Sacavem | 4,138.95 mi (6,661.00 km) |
| Rock Island to Salvaterra de Magos | 4,145.85 mi (6,672.10 km) |
| Rock Island to Santa Comba Dao | 4,127.20 mi (6,642.09 km) |
| Rock Island to Santa Cruz | 3,989.59 mi (6,420.62 km) |
| Rock Island to Santa Iria da Azoia | 4,137.89 mi (6,659.30 km) |
