| Williamstown to Cascais | 3,428.99 mi (5,518.43 km) |
| Williamstown to Castelo Branco | 3,493.11 mi (5,621.63 km) |
| Williamstown to Castro Daire | 3,443.40 mi (5,541.61 km) |
| Williamstown to Celorico de Basto | 3,427.78 mi (5,516.48 km) |
| Williamstown to Chamusca | 3,457.51 mi (5,564.32 km) |
| Williamstown to Chaves | 3,444.12 mi (5,542.78 km) |
| Williamstown to Cinfaes | 3,428.57 mi (5,517.75 km) |
| Williamstown to Coimbra | 3,437.24 mi (5,531.70 km) |
| Williamstown to Condeixa-a-Nova | 3,436.26 mi (5,530.13 km) |
| Williamstown to Corroios | 3,444.50 mi (5,543.39 km) |
| Williamstown to Coruche | 3,466.02 mi (5,578.02 km) |
| Williamstown to Costa de Caparica | 3,439.48 mi (5,535.31 km) |
| Williamstown to Covilha | 3,480.61 mi (5,601.50 km) |
| Williamstown to Eiras | 3,436.68 mi (5,530.80 km) |
| Williamstown to Elvas | 3,536.37 mi (5,691.24 km) |
