| Sliven to Queluz | 1,869.93 mi (3,009.36 km) |
| Sliven to Reguengos de Monsaraz | 1,789.97 mi (2,880.67 km) |
| Sliven to Resende | 1,755.19 mi (2,824.71 km) |
| Sliven to Ribeira Brava | 2,441.59 mi (3,929.37 km) |
| Sliven to Ribeira Grande | 2,711.88 mi (4,364.35 km) |
| Sliven to Rio de Mouro | 1,872.88 mi (3,014.11 km) |
| Sliven to Rio Maior | 1,839.77 mi (2,960.82 km) |
| Sliven to Rio Tinto | 1,783.84 mi (2,870.82 km) |
| Sliven to Sabugal | 1,724.99 mi (2,776.10 km) |
| Sliven to Sacavem | 1,860.76 mi (2,994.60 km) |
| Sliven to Salvaterra de Magos | 1,839.30 mi (2,960.07 km) |
| Sliven to Santa Comba Dao | 1,776.17 mi (2,858.47 km) |
| Sliven to Santa Cruz | 2,428.90 mi (3,908.94 km) |
| Sliven to Santa Iria da Azoia | 1,858.67 mi (2,991.25 km) |
| Sliven to Santarem | 1,829.47 mi (2,944.25 km) |
