| Ironton to Benavente | 3,862.27 mi (6,215.72 km) |
| Ironton to Bombarral | 3,836.27 mi (6,173.88 km) |
| Ironton to Bougado | 3,806.89 mi (6,126.60 km) |
| Ironton to Braga | 3,807.64 mi (6,127.81 km) |
| Ironton to Braganca | 3,879.03 mi (6,242.70 km) |
| Ironton to Cabeceiras de Basto | 3,827.24 mi (6,159.35 km) |
| Ironton to Cacem | 3,843.14 mi (6,184.93 km) |
| Ironton to Cadaval | 3,839.96 mi (6,179.81 km) |
| Ironton to Caldas da Rainha | 3,833.24 mi (6,169.00 km) |
| Ironton to Calheta | 3,623.41 mi (5,831.32 km) |
| Ironton to Camara de Lobos | 3,634.14 mi (5,848.58 km) |
| Ironton to Canico | 3,642.45 mi (5,861.96 km) |
| Ironton to Cantanhede | 3,832.79 mi (6,168.28 km) |
| Ironton to Carregal do Sal | 3,858.85 mi (6,210.22 km) |
| Ironton to Cartaxo | 3,857.77 mi (6,208.48 km) |
