| Pittsburgh to Cromer | 3,734.26 mi (6,009.70 km) |
| Pittsburgh to Crosby | 3,552.56 mi (5,717.30 km) |
| Pittsburgh to Crowborough | 3,737.50 mi (6,014.92 km) |
| Pittsburgh to Croxley Green | 3,698.18 mi (5,951.65 km) |
| Pittsburgh to Croydon | 3,718.57 mi (5,984.45 km) |
| Pittsburgh to Cudworth | 3,613.40 mi (5,815.21 km) |
| Pittsburgh to Culcheth | 3,573.32 mi (5,750.70 km) |
| Pittsburgh to Cullercoats | 3,580.12 mi (5,761.64 km) |
| Pittsburgh to Cumbernauld | 3,465.75 mi (5,577.59 km) |
| Pittsburgh to Cumnock | 3,465.03 mi (5,576.43 km) |
| Pittsburgh to Cupar | 3,494.96 mi (5,624.60 km) |
| Pittsburgh to Cwmbran | 3,594.70 mi (5,785.11 km) |
| Pittsburgh to Dagenham | 3,724.34 mi (5,993.75 km) |
| Pittsburgh to Dalkeith | 3,501.48 mi (5,635.09 km) |
| Pittsburgh to Darfield | 3,615.64 mi (5,818.81 km) |
