| Layton to Cascais | 5,082.37 mi (8,179.29 km) |
| Layton to Castelo Branco | 5,110.82 mi (8,225.06 km) |
| Layton to Castro Daire | 5,044.97 mi (8,119.09 km) |
| Layton to Celorico de Basto | 5,020.83 mi (8,080.24 km) |
| Layton to Chamusca | 5,091.83 mi (8,194.51 km) |
| Layton to Chaves | 5,025.85 mi (8,088.32 km) |
| Layton to Cinfaes | 5,028.09 mi (8,091.93 km) |
| Layton to Coimbra | 5,055.69 mi (8,136.35 km) |
| Layton to Condeixa-a-Nova | 5,057.02 mi (8,138.49 km) |
| Layton to Corroios | 5,097.16 mi (8,203.08 km) |
| Layton to Coruche | 5,107.59 mi (8,219.87 km) |
| Layton to Costa de Caparica | 5,092.32 mi (8,195.30 km) |
| Layton to Covilha | 5,089.87 mi (8,191.35 km) |
| Layton to Eiras | 5,054.52 mi (8,134.47 km) |
| Layton to Elvas | 5,167.84 mi (8,316.84 km) |
