| Willimantic to Conyers (Georgia) | 849.88 mi (1,367.74 km) |
| Willimantic to Cookeville (Tennessee) | 810.49 mi (1,304.36 km) |
| Willimantic to Coolidge (Arizona) | 2,222.52 mi (3,576.80 km) |
| Willimantic to Coon Rapids (Minnesota) | 1,081.62 mi (1,740.71 km) |
| Willimantic to Cooper City (Florida) | 1,176.27 mi (1,893.02 km) |
| Willimantic to Coos Bay (Oregon) | 2,606.90 mi (4,195.40 km) |
| Willimantic to Copiague (New York) | 94.85 mi (152.64 km) |
| Willimantic to Coppell (Texas) | 1,482.53 mi (2,385.89 km) |
| Willimantic to Copperas Cove (Texas) | 1,597.12 mi (2,570.32 km) |
| Willimantic to Coral Gables (Florida) | 1,198.08 mi (1,928.12 km) |
| Willimantic to Coral Springs (Florida) | 1,161.23 mi (1,868.82 km) |
| Willimantic to Coral Terrace (Florida) | 1,196.05 mi (1,924.85 km) |
| Willimantic to Coralville (Iowa) | 997.80 mi (1,605.80 km) |
| Willimantic to Coram (New York) | 70.97 mi (114.21 km) |
| Willimantic to Corcoran (California) | 2,543.25 mi (4,092.96 km) |
