| Pittsburgh to Casamassima | 4,776.91 mi (7,687.69 km) |
| Pittsburgh to Casandrino | 4,664.13 mi (7,506.18 km) |
| Pittsburgh to Casapulla | 4,660.30 mi (7,500.03 km) |
| Pittsburgh to Casarano | 4,868.06 mi (7,834.39 km) |
| Pittsburgh to Casatenovo | 4,277.72 mi (6,884.32 km) |
| Pittsburgh to Casciana Terme | 4,410.41 mi (7,097.86 km) |
| Pittsburgh to Cascina | 4,401.79 mi (7,084.00 km) |
| Pittsburgh to Caselle Torinese | 4,225.88 mi (6,800.90 km) |
| Pittsburgh to Caserta | 4,662.44 mi (7,503.47 km) |
| Pittsburgh to Casier | 4,402.86 mi (7,085.72 km) |
| Pittsburgh to Casorate Primo | 4,278.74 mi (6,885.96 km) |
| Pittsburgh to Casoria | 4,667.58 mi (7,511.75 km) |
| Pittsburgh to Cassano al Ionio | 4,798.84 mi (7,722.99 km) |
| Pittsburgh to Cassano d'Adda | 4,292.04 mi (6,907.37 km) |
| Pittsburgh to Cassano delle Murge | 4,773.28 mi (7,681.85 km) |
