| Ianca to Benavente | 1,892.36 mi (3,045.46 km) |
| Ianca to Bombarral | 1,901.01 mi (3,059.37 km) |
| Ianca to Bougado | 1,817.37 mi (2,924.77 km) |
| Ianca to Braga | 1,805.50 mi (2,905.67 km) |
| Ianca to Braganca | 1,718.83 mi (2,766.19 km) |
| Ianca to Cabeceiras de Basto | 1,786.31 mi (2,874.80 km) |
| Ianca to Cacem | 1,922.86 mi (3,094.55 km) |
| Ianca to Cadaval | 1,899.30 mi (3,056.63 km) |
| Ianca to Caldas da Rainha | 1,896.11 mi (3,051.50 km) |
| Ianca to Calheta | 2,511.34 mi (4,041.61 km) |
| Ianca to Camara de Lobos | 2,503.37 mi (4,028.79 km) |
| Ianca to Canico | 2,499.22 mi (4,022.11 km) |
| Ianca to Cantanhede | 1,844.12 mi (2,967.82 km) |
| Ianca to Carregal do Sal | 1,812.91 mi (2,917.59 km) |
| Ianca to Cartaxo | 1,886.25 mi (3,035.63 km) |
