| Avon Lake to Cascais | 3,724.76 mi (5,994.43 km) |
| Avon Lake to Castelo Branco | 3,779.47 mi (6,082.46 km) |
| Avon Lake to Castro Daire | 3,724.78 mi (5,994.45 km) |
| Avon Lake to Celorico de Basto | 3,706.63 mi (5,965.25 km) |
| Avon Lake to Chamusca | 3,748.17 mi (6,032.09 km) |
| Avon Lake to Chaves | 3,720.01 mi (5,986.78 km) |
| Avon Lake to Cinfaes | 3,709.23 mi (5,969.43 km) |
| Avon Lake to Coimbra | 3,723.27 mi (5,992.02 km) |
| Avon Lake to Condeixa-a-Nova | 3,722.93 mi (5,991.47 km) |
| Avon Lake to Corroios | 3,740.20 mi (6,019.27 km) |
| Avon Lake to Coruche | 3,758.79 mi (6,049.19 km) |
| Avon Lake to Costa de Caparica | 3,735.19 mi (6,011.20 km) |
| Avon Lake to Covilha | 3,764.49 mi (6,058.37 km) |
| Avon Lake to Eiras | 3,722.53 mi (5,990.84 km) |
| Avon Lake to Elvas | 3,826.95 mi (6,158.88 km) |
