| Boulogne-sur-Mer to Queluz | 982.46 mi (1,581.12 km) |
| Boulogne-sur-Mer to Reguengos de Monsaraz | 960.65 mi (1,546.02 km) |
| Boulogne-sur-Mer to Resende | 807.15 mi (1,298.98 km) |
| Boulogne-sur-Mer to Ribeira Brava | 1,565.70 mi (2,519.75 km) |
| Boulogne-sur-Mer to Ribeira Grande | 1,597.31 mi (2,570.63 km) |
| Boulogne-sur-Mer to Rio de Mouro | 983.15 mi (1,582.23 km) |
| Boulogne-sur-Mer to Rio Maior | 938.65 mi (1,510.62 km) |
| Boulogne-sur-Mer to Rio Tinto | 819.44 mi (1,318.76 km) |
| Boulogne-sur-Mer to Sabugal | 830.08 mi (1,335.88 km) |
| Boulogne-sur-Mer to Sacavem | 975.66 mi (1,570.17 km) |
| Boulogne-sur-Mer to Salvaterra de Magos | 953.87 mi (1,535.10 km) |
| Boulogne-sur-Mer to Santa Comba Dao | 853.18 mi (1,373.06 km) |
| Boulogne-sur-Mer to Santa Cruz | 1,558.09 mi (2,507.50 km) |
| Boulogne-sur-Mer to Santa Iria da Azoia | 972.06 mi (1,564.39 km) |
| Boulogne-sur-Mer to Santarem | 938.20 mi (1,509.89 km) |
