| Pittsburg to Collegno | 5,891.52 mi (9,481.48 km) |
| Pittsburg to Cologno al Serio | 5,925.65 mi (9,536.40 km) |
| Pittsburg to Cologno Monzese | 5,916.60 mi (9,521.84 km) |
| Pittsburg to Colorno | 5,981.51 mi (9,626.31 km) |
| Pittsburg to Comacchio | 6,045.45 mi (9,729.20 km) |
| Pittsburg to Comiso | 6,560.97 mi (10,558.86 km) |
| Pittsburg to Como | 5,895.44 mi (9,487.79 km) |
| Pittsburg to Concordia Sagittaria | 6,002.83 mi (9,660.63 km) |
| Pittsburg to Concorezzo | 5,914.86 mi (9,519.04 km) |
| Pittsburg to Conegliano | 5,980.99 mi (9,625.48 km) |
| Pittsburg to Conselice | 6,046.09 mi (9,730.24 km) |
| Pittsburg to Conselve | 6,006.33 mi (9,666.25 km) |
| Pittsburg to Conversano | 6,397.56 mi (10,295.87 km) |
| Pittsburg to Copertino | 6,464.18 mi (10,403.09 km) |
| Pittsburg to Copparo | 6,024.32 mi (9,695.21 km) |
