| Pittsburgh to Chivasso | 4,235.59 mi (6,816.52 km) |
| Pittsburgh to Ciampino | 4,559.70 mi (7,338.14 km) |
| Pittsburgh to Cicciano | 4,674.94 mi (7,523.60 km) |
| Pittsburgh to Cingoli | 4,526.08 mi (7,284.02 km) |
| Pittsburgh to Cinisello Balsamo | 4,278.94 mi (6,886.29 km) |
| Pittsburgh to Cinisi | 4,723.45 mi (7,601.65 km) |
| Pittsburgh to Cirie | 4,221.95 mi (6,794.57 km) |
| Pittsburgh to Ciro Marina | 4,850.58 mi (7,806.26 km) |
| Pittsburgh to Cislago | 4,265.02 mi (6,863.89 km) |
| Pittsburgh to Cisterna di Latina | 4,577.53 mi (7,366.82 km) |
| Pittsburgh to Cisternino | 4,807.54 mi (7,736.99 km) |
| Pittsburgh to Citta di Castello | 4,481.63 mi (7,212.49 km) |
| Pittsburgh to Citta Sant'Angelo | 4,593.75 mi (7,392.93 km) |
| Pittsburgh to Cittadella | 4,381.66 mi (7,051.60 km) |
| Pittsburgh to Cittanova | 4,847.33 mi (7,801.03 km) |
