| Pittsburg to Cortona | 6,120.99 mi (9,850.79 km) |
| Pittsburg to Cosenza | 6,471.88 mi (10,415.49 km) |
| Pittsburg to Cossato | 5,882.22 mi (9,466.52 km) |
| Pittsburg to Costa Volpino | 5,923.18 mi (9,532.44 km) |
| Pittsburg to Creazzo | 5,978.69 mi (9,621.77 km) |
| Pittsburg to Crema | 5,937.24 mi (9,555.07 km) |
| Pittsburg to Cremona | 5,960.30 mi (9,592.18 km) |
| Pittsburg to Crevalcore | 6,015.50 mi (9,681.01 km) |
| Pittsburg to Crispiano | 6,422.40 mi (10,335.86 km) |
| Pittsburg to Crosia | 6,470.64 mi (10,413.49 km) |
| Pittsburg to Crotone | 6,508.90 mi (10,475.06 km) |
| Pittsburg to Cuneo | 5,928.85 mi (9,541.56 km) |
| Pittsburg to Cuorgne | 5,876.72 mi (9,457.67 km) |
| Pittsburg to Cusano Milanino | 5,912.67 mi (9,515.53 km) |
| Pittsburg to Cutro | 6,508.14 mi (10,473.85 km) |
