| Buckeye to Cascais | 5,439.63 mi (8,754.24 km) |
| Buckeye to Castelo Branco | 5,480.44 mi (8,819.91 km) |
| Buckeye to Castro Daire | 5,419.05 mi (8,721.11 km) |
| Buckeye to Celorico de Basto | 5,397.29 mi (8,686.10 km) |
| Buckeye to Chamusca | 5,455.75 mi (8,780.18 km) |
| Buckeye to Chaves | 5,405.82 mi (8,699.82 km) |
| Buckeye to Cinfaes | 5,402.63 mi (8,694.69 km) |
| Buckeye to Coimbra | 5,424.49 mi (8,729.88 km) |
| Buckeye to Condeixa-a-Nova | 5,425.09 mi (8,730.83 km) |
| Buckeye to Corroios | 5,454.81 mi (8,778.67 km) |
| Buckeye to Coruche | 5,469.20 mi (8,801.83 km) |
| Buckeye to Costa de Caparica | 5,449.86 mi (8,770.71 km) |
| Buckeye to Covilha | 5,461.99 mi (8,790.23 km) |
| Buckeye to Eiras | 5,423.51 mi (8,728.30 km) |
| Buckeye to Elvas | 5,533.49 mi (8,905.29 km) |
