| Sinnai to Queluz | 990.36 mi (1,593.83 km) |
| Sinnai to Reguengos de Monsaraz | 901.24 mi (1,450.40 km) |
| Sinnai to Resende | 912.91 mi (1,469.19 km) |
| Sinnai to Ribeira Brava | 1,530.92 mi (2,463.77 km) |
| Sinnai to Ribeira Grande | 1,867.13 mi (3,004.86 km) |
| Sinnai to Rio de Mouro | 993.73 mi (1,599.25 km) |
| Sinnai to Rio Maior | 967.82 mi (1,557.56 km) |
| Sinnai to Rio Tinto | 944.09 mi (1,519.36 km) |
| Sinnai to Sabugal | 866.00 mi (1,393.69 km) |
| Sinnai to Sacavem | 981.36 mi (1,579.34 km) |
| Sinnai to Salvaterra de Magos | 962.22 mi (1,548.54 km) |
| Sinnai to Santa Comba Dao | 920.35 mi (1,481.16 km) |
| Sinnai to Santa Cruz | 1,517.73 mi (2,442.54 km) |
| Sinnai to Santa Iria da Azoia | 979.96 mi (1,577.09 km) |
| Sinnai to Santarem | 955.36 mi (1,537.51 km) |
