| Sieradz to Bombarral | 1,584.02 mi (2,549.23 km) |
| Sieradz to Bougado | 1,468.10 mi (2,362.68 km) |
| Sieradz to Braga | 1,453.36 mi (2,338.95 km) |
| Sieradz to Braganca | 1,374.89 mi (2,212.68 km) |
| Sieradz to Cabeceiras de Basto | 1,437.63 mi (2,313.64 km) |
| Sieradz to Cacem | 1,613.16 mi (2,596.14 km) |
| Sieradz to Cadaval | 1,583.41 mi (2,548.26 km) |
| Sieradz to Caldas da Rainha | 1,576.86 mi (2,537.70 km) |
| Sieradz to Calheta | 2,219.67 mi (3,572.21 km) |
| Sieradz to Camara de Lobos | 2,213.74 mi (3,562.67 km) |
| Sieradz to Canico | 2,211.40 mi (3,558.90 km) |
| Sieradz to Cantanhede | 1,512.72 mi (2,434.49 km) |
| Sieradz to Carregal do Sal | 1,484.95 mi (2,389.80 km) |
| Sieradz to Cartaxo | 1,574.66 mi (2,534.17 km) |
| Sieradz to Cascais | 1,620.77 mi (2,608.37 km) |
