| Sliven to Bombarral | 1,852.46 mi (2,981.24 km) |
| Sliven to Bougado | 1,780.97 mi (2,866.19 km) |
| Sliven to Braga | 1,770.30 mi (2,849.02 km) |
| Sliven to Braganca | 1,682.83 mi (2,708.25 km) |
| Sliven to Cabeceiras de Basto | 1,750.37 mi (2,816.96 km) |
| Sliven to Cacem | 1,871.60 mi (3,012.04 km) |
| Sliven to Cadaval | 1,850.44 mi (2,977.99 km) |
| Sliven to Caldas da Rainha | 1,848.38 mi (2,974.68 km) |
| Sliven to Calheta | 2,446.04 mi (3,936.53 km) |
| Sliven to Camara de Lobos | 2,437.54 mi (3,922.84 km) |
| Sliven to Canico | 2,432.88 mi (3,915.35 km) |
| Sliven to Cantanhede | 1,801.31 mi (2,898.93 km) |
| Sliven to Carregal do Sal | 1,769.63 mi (2,847.94 km) |
| Sliven to Cartaxo | 1,836.28 mi (2,955.20 km) |
| Sliven to Cascais | 1,878.76 mi (3,023.56 km) |
