| Boston to Quarteira | 1,165.88 mi (1,876.30 km) |
| Boston to Queluz | 1,076.59 mi (1,732.61 km) |
| Boston to Reguengos de Monsaraz | 1,067.73 mi (1,718.34 km) |
| Boston to Resende | 899.95 mi (1,448.33 km) |
| Boston to Ribeira Brava | 1,636.90 mi (2,634.33 km) |
| Boston to Ribeira Grande | 1,605.45 mi (2,583.72 km) |
| Boston to Rio de Mouro | 1,076.76 mi (1,732.87 km) |
| Boston to Rio Maior | 1,032.65 mi (1,661.88 km) |
| Boston to Rio Tinto | 907.18 mi (1,459.97 km) |
| Boston to Sabugal | 933.20 mi (1,501.84 km) |
| Boston to Sacavem | 1,070.71 mi (1,723.14 km) |
| Boston to Salvaterra de Magos | 1,050.23 mi (1,690.18 km) |
| Boston to Santa Comba Dao | 948.30 mi (1,526.14 km) |
| Boston to Santa Cruz | 1,630.55 mi (2,624.12 km) |
| Boston to Santa Iria da Azoia | 1,067.02 mi (1,717.21 km) |
