| Sulmona to Cicero (Illinois) | 4,867.09 mi (7,832.83 km) |
| Sulmona to Cimarron Hills (Colorado) | 5,649.60 mi (9,092.15 km) |
| Sulmona to Cincinnati (Ohio) | 4,852.12 mi (7,808.74 km) |
| Sulmona to Cinco Ranch (Texas) | 5,762.04 mi (9,273.11 km) |
| Sulmona to Circleville (Ohio) | 4,766.28 mi (7,670.58 km) |
| Sulmona to Citrus (California) | 6,354.03 mi (10,225.82 km) |
| Sulmona to Citrus Heights (California) | 6,189.27 mi (9,960.66 km) |
| Sulmona to Citrus Park (Florida) | 5,254.30 mi (8,455.98 km) |
| Sulmona to Claiborne (Louisiana) | 5,476.26 mi (8,813.19 km) |
| Sulmona to Claremont (California) | 6,347.95 mi (10,216.03 km) |
| Sulmona to Claremont (New Hampshire) | 4,167.60 mi (6,707.11 km) |
| Sulmona to Claremore (Oklahoma) | 5,435.19 mi (8,747.10 km) |
| Sulmona to Clarksburg (Maryland) | 4,539.24 mi (7,305.20 km) |
| Sulmona to Clarksburg (West Virginia) | 4,668.89 mi (7,513.85 km) |
| Sulmona to Clarksdale (Mississippi) | 5,329.53 mi (8,577.06 km) |
