| Willimantic to Cullman (Alabama) | 950.16 mi (1,529.14 km) |
| Willimantic to Culpeper (Virginia) | 379.24 mi (610.33 km) |
| Willimantic to Culver City (California) | 2,543.68 mi (4,093.65 km) |
| Willimantic to Cumberland (Maryland) | 371.40 mi (597.71 km) |
| Willimantic to Cupertino (California) | 2,636.51 mi (4,243.05 km) |
| Willimantic to Cutler Bay (Florida) | 1,207.71 mi (1,943.62 km) |
| Willimantic to Cutlerville (Michigan) | 691.80 mi (1,113.34 km) |
| Willimantic to Cuyahoga Falls (Ohio) | 483.45 mi (778.04 km) |
| Willimantic to Cypress (California) | 2,530.96 mi (4,073.19 km) |
| Willimantic to Cypress Gardens (Florida) | 1,087.51 mi (1,750.18 km) |
| Willimantic to Cypress Lake (Florida) | 1,184.18 mi (1,905.76 km) |
| Willimantic to D'Iberville (Mississippi) | 1,209.40 mi (1,946.34 km) |
| Willimantic to Dakota Ridge (Colorado) | 1,720.94 mi (2,769.59 km) |
| Willimantic to Dale City (Virginia) | 344.05 mi (553.70 km) |
| Willimantic to Dallas (Georgia) | 873.53 mi (1,405.81 km) |
