| Pittsburgh to Cavaillon | 4,159.42 mi (6,693.95 km) |
| Pittsburgh to Cebazat | 4,010.78 mi (6,454.73 km) |
| Pittsburgh to Cenon | 3,882.77 mi (6,248.71 km) |
| Pittsburgh to Cergy | 3,870.58 mi (6,229.09 km) |
| Pittsburgh to Cernay | 4,118.26 mi (6,627.69 km) |
| Pittsburgh to Cesson | 3,906.48 mi (6,286.86 km) |
| Pittsburgh to Cesson-Sevigne | 3,742.93 mi (6,023.66 km) |
| Pittsburgh to Cestas | 3,879.53 mi (6,243.51 km) |
| Pittsburgh to Chalette-sur-Loing | 3,928.51 mi (6,322.32 km) |
| Pittsburgh to Challans | 3,766.28 mi (6,061.24 km) |
| Pittsburgh to Chalon-sur-Saone | 4,055.09 mi (6,526.04 km) |
| Pittsburgh to Chalons-en-Champagne | 3,967.22 mi (6,384.63 km) |
| Pittsburgh to Chamalieres | 4,011.18 mi (6,455.37 km) |
| Pittsburgh to Chambery | 4,139.16 mi (6,661.34 km) |
| Pittsburgh to Chambly | 3,874.42 mi (6,235.27 km) |
