| Williamsport to Benavente | 3,513.51 mi (5,654.45 km) |
| Williamsport to Bombarral | 3,487.34 mi (5,612.33 km) |
| Williamsport to Bougado | 3,456.00 mi (5,561.90 km) |
| Williamsport to Braga | 3,456.57 mi (5,562.82 km) |
| Williamsport to Braganca | 3,527.48 mi (5,676.92 km) |
| Williamsport to Cabeceiras de Basto | 3,476.10 mi (5,594.24 km) |
| Williamsport to Cacem | 3,494.79 mi (5,624.32 km) |
| Williamsport to Cadaval | 3,491.04 mi (5,618.29 km) |
| Williamsport to Caldas da Rainha | 3,484.16 mi (5,607.21 km) |
| Williamsport to Calheta | 3,290.93 mi (5,296.24 km) |
| Williamsport to Camara de Lobos | 3,301.54 mi (5,313.31 km) |
| Williamsport to Canico | 3,309.85 mi (5,326.69 km) |
| Williamsport to Cantanhede | 3,482.68 mi (5,604.83 km) |
| Williamsport to Carregal do Sal | 3,508.50 mi (5,646.38 km) |
| Williamsport to Cartaxo | 3,508.82 mi (5,646.91 km) |
