| Houma to Cascais | 4,539.78 mi (7,306.07 km) |
| Houma to Castelo Branco | 4,610.37 mi (7,419.67 km) |
| Houma to Castro Daire | 4,563.77 mi (7,344.67 km) |
| Houma to Celorico de Basto | 4,549.54 mi (7,321.77 km) |
| Houma to Chamusca | 4,572.01 mi (7,357.93 km) |
| Houma to Chaves | 4,567.29 mi (7,350.34 km) |
| Houma to Cinfaes | 4,549.38 mi (7,321.52 km) |
| Houma to Coimbra | 4,554.90 mi (7,330.41 km) |
| Houma to Condeixa-a-Nova | 4,553.53 mi (7,328.20 km) |
| Houma to Corroios | 4,555.27 mi (7,331.00 km) |
| Houma to Coruche | 4,578.96 mi (7,369.12 km) |
| Houma to Costa de Caparica | 4,550.27 mi (7,322.95 km) |
| Houma to Covilha | 4,599.42 mi (7,402.06 km) |
| Houma to Eiras | 4,554.46 mi (7,329.69 km) |
| Houma to Elvas | 4,650.61 mi (7,484.43 km) |
