| Smolyan to Santiago do Cacem | 1,778.77 mi (2,862.65 km) |
| Smolyan to Santo Andre | 1,780.62 mi (2,865.62 km) |
| Smolyan to Santo Tirso | 1,706.80 mi (2,746.83 km) |
| Smolyan to Sao Bras de Alportel | 1,756.47 mi (2,826.76 km) |
| Smolyan to Sao Felix da Marinha | 1,719.07 mi (2,766.57 km) |
| Smolyan to Sao Joao da Madeira | 1,714.29 mi (2,758.88 km) |
| Smolyan to Sao Joao de Ver | 1,716.60 mi (2,762.59 km) |
| Smolyan to Sao Mamede de Infesta | 1,715.47 mi (2,760.78 km) |
| Smolyan to Sao Pedro do Sul | 1,695.00 mi (2,727.84 km) |
| Smolyan to Satao | 1,678.24 mi (2,700.86 km) |
| Smolyan to Seia | 1,681.53 mi (2,706.17 km) |
| Smolyan to Senhora da Hora | 1,718.27 mi (2,765.28 km) |
| Smolyan to Serpa | 1,723.52 mi (2,773.73 km) |
| Smolyan to Serta | 1,712.41 mi (2,755.86 km) |
| Smolyan to Sesimbra | 1,790.18 mi (2,881.01 km) |
