| Willimantic to Commerce (California) | 2,531.35 mi (4,073.82 km) |
| Willimantic to Commerce City (Colorado) | 1,701.55 mi (2,738.38 km) |
| Willimantic to Compton (California) | 2,538.38 mi (4,085.12 km) |
| Willimantic to Comstock Park (Michigan) | 692.62 mi (1,114.66 km) |
| Willimantic to Concord (California) | 2,617.12 mi (4,211.84 km) |
| Willimantic to Concord (Missouri) | 982.06 mi (1,580.48 km) |
| Willimantic to Concord (New Hampshire) | 109.72 mi (176.57 km) |
| Willimantic to Concord (North Carolina) | 630.40 mi (1,014.52 km) |
| Willimantic to Conneaut (Ohio) | 430.38 mi (692.63 km) |
| Willimantic to Connersville (Indiana) | 691.47 mi (1,112.81 km) |
| Willimantic to Conroe (Texas) | 1,512.71 mi (2,434.47 km) |
| Willimantic to Converse (Texas) | 1,681.31 mi (2,705.81 km) |
| Willimantic to Conway (Arkansas) | 1,185.41 mi (1,907.73 km) |
| Willimantic to Conway (Florida) | 1,047.37 mi (1,685.58 km) |
| Willimantic to Conway (South Carolina) | 659.33 mi (1,061.09 km) |
