| Pittsburgh to Cascais | 3,654.81 mi (5,881.85 km) |
| Pittsburgh to Castelo Branco | 3,713.46 mi (5,976.24 km) |
| Pittsburgh to Castro Daire | 3,660.76 mi (5,891.42 km) |
| Pittsburgh to Celorico de Basto | 3,643.62 mi (5,863.85 km) |
| Pittsburgh to Chamusca | 3,680.36 mi (5,922.97 km) |
| Pittsburgh to Chaves | 3,658.21 mi (5,887.33 km) |
| Pittsburgh to Cinfaes | 3,645.49 mi (5,866.85 km) |
| Pittsburgh to Coimbra | 3,657.35 mi (5,885.94 km) |
| Pittsburgh to Condeixa-a-Nova | 3,656.75 mi (5,884.97 km) |
| Pittsburgh to Corroios | 3,670.29 mi (5,906.76 km) |
| Pittsburgh to Coruche | 3,690.12 mi (5,938.67 km) |
| Pittsburgh to Costa de Caparica | 3,665.27 mi (5,898.68 km) |
| Pittsburgh to Covilha | 3,699.49 mi (5,953.75 km) |
| Pittsburgh to Eiras | 3,656.69 mi (5,884.87 km) |
| Pittsburgh to Elvas | 3,759.24 mi (6,049.91 km) |
