| Pittsburgh to Cabestany | 4,105.73 mi (6,607.53 km) |
| Pittsburgh to Cabries | 4,187.72 mi (6,739.48 km) |
| Pittsburgh to Cachan | 3,888.73 mi (6,258.31 km) |
| Pittsburgh to Caen | 3,765.93 mi (6,060.68 km) |
| Pittsburgh to Cagnes-sur-Mer | 4,256.88 mi (6,850.79 km) |
| Pittsburgh to Cahors | 3,982.20 mi (6,408.74 km) |
| Pittsburgh to Calais | 3,808.50 mi (6,129.18 km) |
| Pittsburgh to Caluire-et-Cuire | 4,086.54 mi (6,576.66 km) |
| Pittsburgh to Cambrai | 3,885.46 mi (6,253.05 km) |
| Pittsburgh to Canet-en-Roussillon | 4,107.77 mi (6,610.82 km) |
| Pittsburgh to Cannes | 4,254.93 mi (6,847.65 km) |
| Pittsburgh to Canteleu | 3,816.57 mi (6,142.17 km) |
| Pittsburgh to Capbreton | 3,879.43 mi (6,243.33 km) |
| Pittsburgh to Carcassonne | 4,061.96 mi (6,537.09 km) |
| Pittsburgh to Carmaux | 4,026.38 mi (6,479.83 km) |
