| Amarillo to Cascais | 4,872.26 mi (7,841.15 km) |
| Amarillo to Castelo Branco | 4,921.86 mi (7,920.97 km) |
| Amarillo to Castro Daire | 4,864.35 mi (7,828.42 km) |
| Amarillo to Celorico de Basto | 4,844.66 mi (7,796.73 km) |
| Amarillo to Chamusca | 4,893.05 mi (7,874.61 km) |
| Amarillo to Chaves | 4,856.00 mi (7,814.98 km) |
| Amarillo to Cinfaes | 4,848.42 mi (7,802.77 km) |
| Amarillo to Coimbra | 4,865.66 mi (7,830.52 km) |
| Amarillo to Condeixa-a-Nova | 4,865.68 mi (7,830.56 km) |
| Amarillo to Corroios | 4,887.63 mi (7,865.88 km) |
| Amarillo to Coruche | 4,904.74 mi (7,893.42 km) |
| Amarillo to Costa de Caparica | 4,882.64 mi (7,857.84 km) |
| Amarillo to Covilha | 4,905.47 mi (7,894.59 km) |
| Amarillo to Eiras | 4,864.82 mi (7,829.17 km) |
| Amarillo to Elvas | 4,971.57 mi (8,000.97 km) |
