| Monthey to Cascais | 980.86 mi (1,578.54 km) |
| Monthey to Castelo Branco | 852.54 mi (1,372.03 km) |
| Monthey to Castro Daire | 829.87 mi (1,335.55 km) |
| Monthey to Celorico de Basto | 815.97 mi (1,313.18 km) |
| Monthey to Chamusca | 913.83 mi (1,470.66 km) |
| Monthey to Chaves | 780.12 mi (1,255.49 km) |
| Monthey to Cinfaes | 831.73 mi (1,338.53 km) |
| Monthey to Coimbra | 877.37 mi (1,412.00 km) |
| Monthey to Condeixa-a-Nova | 884.10 mi (1,422.81 km) |
| Monthey to Corroios | 973.11 mi (1,566.07 km) |
| Monthey to Coruche | 932.07 mi (1,500.02 km) |
| Monthey to Costa de Caparica | 975.45 mi (1,569.84 km) |
| Monthey to Covilha | 833.92 mi (1,342.07 km) |
| Monthey to Eiras | 875.96 mi (1,409.73 km) |
| Monthey to Elvas | 878.34 mi (1,413.55 km) |
