| Boone to Cascais | 3,858.98 mi (6,210.43 km) |
| Boone to Castelo Branco | 3,925.41 mi (6,317.33 km) |
| Boone to Castro Daire | 3,876.73 mi (6,239.00 km) |
| Boone to Celorico de Basto | 3,861.57 mi (6,214.60 km) |
| Boone to Chamusca | 3,888.83 mi (6,258.46 km) |
| Boone to Chaves | 3,878.38 mi (6,241.65 km) |
| Boone to Cinfaes | 3,862.05 mi (6,215.37 km) |
| Boone to Coimbra | 3,869.66 mi (6,227.61 km) |
| Boone to Condeixa-a-Nova | 3,868.54 mi (6,225.82 km) |
| Boone to Corroios | 3,874.49 mi (6,235.39 km) |
| Boone to Coruche | 3,896.79 mi (6,271.28 km) |
| Boone to Costa de Caparica | 3,869.47 mi (6,227.31 km) |
| Boone to Covilha | 3,913.43 mi (6,298.06 km) |
| Boone to Eiras | 3,869.14 mi (6,226.77 km) |
| Boone to Elvas | 3,967.63 mi (6,385.28 km) |
