| Niagara Falls to Benavente | 3,561.82 mi (5,732.20 km) |
| Niagara Falls to Bombarral | 3,535.15 mi (5,689.27 km) |
| Niagara Falls to Bougado | 3,496.51 mi (5,627.09 km) |
| Niagara Falls to Braga | 3,496.23 mi (5,626.64 km) |
| Niagara Falls to Braganca | 3,564.39 mi (5,736.33 km) |
| Niagara Falls to Cabeceiras de Basto | 3,515.34 mi (5,657.40 km) |
| Niagara Falls to Cacem | 3,544.34 mi (5,704.07 km) |
| Niagara Falls to Cadaval | 3,538.89 mi (5,695.30 km) |
| Niagara Falls to Caldas da Rainha | 3,531.51 mi (5,683.42 km) |
| Niagara Falls to Calheta | 3,369.16 mi (5,422.14 km) |
| Niagara Falls to Camara de Lobos | 3,379.59 mi (5,438.93 km) |
| Niagara Falls to Canico | 3,387.88 mi (5,452.27 km) |
| Niagara Falls to Cantanhede | 3,526.41 mi (5,675.20 km) |
| Niagara Falls to Carregal do Sal | 3,551.24 mi (5,715.17 km) |
| Niagara Falls to Cartaxo | 3,556.55 mi (5,723.71 km) |
