| Sulmona to Cloverly (Maryland) | 4,532.34 mi (7,294.10 km) |
| Sulmona to Clovis (California) | 6,252.11 mi (10,061.81 km) |
| Sulmona to Clovis (New Mexico) | 5,823.53 mi (9,372.06 km) |
| Sulmona to Clute (Texas) | 5,781.64 mi (9,304.66 km) |
| Sulmona to Coachella (California) | 6,322.17 mi (10,174.55 km) |
| Sulmona to Coalinga (California) | 6,311.20 mi (10,156.90 km) |
| Sulmona to Coamo (Puerto Rico) | 4,900.14 mi (7,886.01 km) |
| Sulmona to Coatesville (Pennsylvania) | 4,446.06 mi (7,155.24 km) |
| Sulmona to Cockeysville (Maryland) | 4,501.27 mi (7,244.09 km) |
| Sulmona to Cocoa (Florida) | 5,157.03 mi (8,299.45 km) |
| Sulmona to Cocoa Beach (Florida) | 5,152.68 mi (8,292.43 km) |
| Sulmona to Coconut Creek (Florida) | 5,222.94 mi (8,405.51 km) |
| Sulmona to Coeur d'Alene (Idaho) | 5,544.54 mi (8,923.08 km) |
| Sulmona to Cohoes (New York) | 4,248.46 mi (6,837.23 km) |
| Sulmona to Cold Springs (Nevada) | 6,093.63 mi (9,806.75 km) |
