| Willimantic to Duluth (Minnesota) | 1,042.96 mi (1,678.49 km) |
| Willimantic to Dumas (Texas) | 1,643.68 mi (2,645.25 km) |
| Willimantic to Dumont (New Jersey) | 106.68 mi (171.69 km) |
| Willimantic to Duncan (Oklahoma) | 1,475.99 mi (2,375.38 km) |
| Willimantic to Duncanville (Texas) | 1,490.19 mi (2,398.23 km) |
| Willimantic to Dundalk (Maryland) | 281.40 mi (452.86 km) |
| Willimantic to Dunedin (Florida) | 1,117.46 mi (1,798.37 km) |
| Willimantic to Dunkirk (New York) | 368.74 mi (593.43 km) |
| Willimantic to Dunmore (Pennsylvania) | 176.77 mi (284.48 km) |
| Willimantic to Dunwoody (Georgia) | 849.83 mi (1,367.66 km) |
| Willimantic to Durango (Colorado) | 1,912.51 mi (3,077.89 km) |
| Willimantic to Durant (Oklahoma) | 1,416.89 mi (2,280.26 km) |
| Willimantic to Durham (North Carolina) | 535.18 mi (861.30 km) |
| Willimantic to Dyer (Indiana) | 789.41 mi (1,270.43 km) |
| Willimantic to Dyersburg (Tennessee) | 1,000.70 mi (1,610.47 km) |
