| Griffin to Cascais | 4,084.80 mi (6,573.86 km) |
| Griffin to Castelo Branco | 4,154.81 mi (6,686.52 km) |
| Griffin to Castro Daire | 4,108.06 mi (6,611.29 km) |
| Griffin to Celorico de Basto | 4,093.82 mi (6,588.36 km) |
| Griffin to Chamusca | 4,116.65 mi (6,625.12 km) |
| Griffin to Chaves | 4,111.59 mi (6,616.96 km) |
| Griffin to Cinfaes | 4,093.67 mi (6,588.12 km) |
| Griffin to Coimbra | 4,099.31 mi (6,597.21 km) |
| Griffin to Condeixa-a-Nova | 4,097.96 mi (6,595.04 km) |
| Griffin to Corroios | 4,100.30 mi (6,598.80 km) |
| Griffin to Coruche | 4,123.76 mi (6,636.54 km) |
| Griffin to Costa de Caparica | 4,095.29 mi (6,590.74 km) |
| Griffin to Covilha | 4,143.78 mi (6,668.77 km) |
| Griffin to Eiras | 4,098.86 mi (6,596.48 km) |
| Griffin to Elvas | 4,195.29 mi (6,751.66 km) |
