| Pittsburgh to Cosham | 3,693.60 mi (5,944.28 km) |
| Pittsburgh to Costessey | 3,737.85 mi (6,015.49 km) |
| Pittsburgh to Cottingham | 3,647.23 mi (5,869.64 km) |
| Pittsburgh to Coulsdon | 3,718.74 mi (5,984.74 km) |
| Pittsburgh to Coventry | 3,637.13 mi (5,853.39 km) |
| Pittsburgh to Cowdenbeath | 3,486.49 mi (5,610.96 km) |
| Pittsburgh to Cowes | 3,686.20 mi (5,932.37 km) |
| Pittsburgh to Cowley | 3,699.75 mi (5,954.18 km) |
| Pittsburgh to Cowley | 3,665.28 mi (5,898.70 km) |
| Pittsburgh to Cramlington | 3,573.34 mi (5,750.74 km) |
| Pittsburgh to Cranleigh | 3,709.84 mi (5,970.41 km) |
| Pittsburgh to Crawley | 3,722.26 mi (5,990.39 km) |
| Pittsburgh to Crayford | 3,728.24 mi (6,000.01 km) |
| Pittsburgh to Crewe | 3,584.45 mi (5,768.61 km) |
| Pittsburgh to Crigglestone | 3,607.73 mi (5,806.09 km) |
