| Pittsburgh to Cloverleaf (Texas) | 1,128.07 mi (1,815.46 km) |
| Pittsburgh to Cloverly (Maryland) | 182.95 mi (294.43 km) |
| Pittsburgh to Clovis (California) | 2,139.45 mi (3,443.11 km) |
| Pittsburgh to Clovis (New Mexico) | 1,334.83 mi (2,148.20 km) |
| Pittsburgh to Clute (Texas) | 1,175.16 mi (1,891.23 km) |
| Pittsburgh to Coachella (California) | 2,032.72 mi (3,271.35 km) |
| Pittsburgh to Coalinga (California) | 2,188.94 mi (3,522.76 km) |
| Pittsburgh to Coamo (Puerto Rico) | 1,744.50 mi (2,807.50 km) |
| Pittsburgh to Coatesville (Pennsylvania) | 221.52 mi (356.50 km) |
| Pittsburgh to Cockeysville (Maryland) | 189.22 mi (304.52 km) |
| Pittsburgh to Cocoa (Florida) | 834.32 mi (1,342.70 km) |
| Pittsburgh to Cocoa Beach (Florida) | 837.33 mi (1,347.55 km) |
| Pittsburgh to Coconut Creek (Florida) | 978.39 mi (1,574.57 km) |
| Pittsburgh to Coeur d'Alene (Idaho) | 1,875.85 mi (3,018.89 km) |
| Pittsburgh to Cohoes (New York) | 361.64 mi (582.00 km) |
