| Willimantic to Carlsbad (California) | 2,513.46 mi (4,045.03 km) |
| Willimantic to Carlsbad (New Mexico) | 1,866.57 mi (3,003.96 km) |
| Willimantic to Carmel (Indiana) | 737.52 mi (1,186.92 km) |
| Willimantic to Carmichael (California) | 2,566.43 mi (4,130.28 km) |
| Willimantic to Carney (Maryland) | 276.99 mi (445.76 km) |
| Willimantic to Carnot-Moon (Pennsylvania) | 424.73 mi (683.53 km) |
| Willimantic to Carol Stream (Illinois) | 818.68 mi (1,317.53 km) |
| Willimantic to Carolina (Puerto Rico) | 1,652.05 mi (2,658.72 km) |
| Willimantic to Carolina Forest (South Carolina) | 659.76 mi (1,061.79 km) |
| Willimantic to Carpentersville (Illinois) | 825.85 mi (1,329.08 km) |
| Willimantic to Carpinteria (California) | 2,589.30 mi (4,167.07 km) |
| Willimantic to Carrboro (North Carolina) | 544.72 mi (876.64 km) |
| Willimantic to Carroll (Iowa) | 1,161.94 mi (1,869.97 km) |
| Willimantic to Carrollton (Georgia) | 899.29 mi (1,447.28 km) |
| Willimantic to Carrollton (Texas) | 1,477.15 mi (2,377.24 km) |
