| Pittsburgh to Cadiz | 3,874.91 mi (6,236.06 km) |
| Pittsburgh to Calafell | 4,093.04 mi (6,587.11 km) |
| Pittsburgh to Calahorra | 3,896.37 mi (6,270.61 km) |
| Pittsburgh to Calasparra | 4,040.18 mi (6,502.05 km) |
| Pittsburgh to Calatayud | 3,941.46 mi (6,343.16 km) |
| Pittsburgh to Caldas de Montbuy | 4,105.77 mi (6,607.61 km) |
| Pittsburgh to Caldas de Reyes | 3,579.40 mi (5,760.48 km) |
| Pittsburgh to Calella | 4,128.75 mi (6,644.58 km) |
| Pittsburgh to Callosa de Segura | 4,082.71 mi (6,570.49 km) |
| Pittsburgh to Calpe | 4,108.52 mi (6,612.03 km) |
| Pittsburgh to Calvia | 4,191.48 mi (6,745.54 km) |
| Pittsburgh to Camas | 3,859.54 mi (6,211.33 km) |
| Pittsburgh to Cambados | 3,574.67 mi (5,752.88 km) |
| Pittsburgh to Cambre | 3,575.03 mi (5,753.45 km) |
| Pittsburgh to Cambrils | 4,074.07 mi (6,556.59 km) |
