| Irving to Cascais | 4,729.84 mi (7,611.94 km) |
| Irving to Castelo Branco | 4,788.54 mi (7,706.40 km) |
| Irving to Castro Daire | 4,735.40 mi (7,620.90 km) |
| Irving to Celorico de Basto | 4,717.94 mi (7,592.79 km) |
| Irving to Chamusca | 4,755.56 mi (7,653.33 km) |
| Irving to Chaves | 4,732.05 mi (7,615.50 km) |
| Irving to Cinfaes | 4,720.05 mi (7,596.19 km) |
| Irving to Coimbra | 4,732.41 mi (7,616.07 km) |
| Irving to Condeixa-a-Nova | 4,731.84 mi (7,615.16 km) |
| Irving to Corroios | 4,745.33 mi (7,636.86 km) |
| Irving to Coruche | 4,765.29 mi (7,669.00 km) |
| Irving to Costa de Caparica | 4,740.31 mi (7,628.79 km) |
| Irving to Covilha | 4,774.39 mi (7,683.63 km) |
| Irving to Eiras | 4,731.73 mi (7,614.99 km) |
| Irving to Elvas | 4,834.44 mi (7,780.28 km) |
