| Willimantic to Des Plaines (Illinois) | 806.33 mi (1,297.66 km) |
| Willimantic to Desert Hot Springs (California) | 2,449.72 mi (3,942.44 km) |
| Willimantic to DeSoto (Texas) | 1,489.47 mi (2,397.06 km) |
| Willimantic to Destin (Florida) | 1,113.47 mi (1,791.96 km) |
| Willimantic to Destrehan (Louisiana) | 1,296.71 mi (2,086.86 km) |
| Willimantic to Detroit (Michigan) | 560.28 mi (901.68 km) |
| Willimantic to Diamond Bar (California) | 2,513.97 mi (4,045.85 km) |
| Willimantic to Diamond Springs (California) | 2,540.38 mi (4,088.35 km) |
| Willimantic to Dickinson (North Dakota) | 1,543.23 mi (2,483.60 km) |
| Willimantic to Dickinson (Texas) | 1,530.51 mi (2,463.12 km) |
| Willimantic to Dickson (Tennessee) | 902.06 mi (1,451.73 km) |
| Willimantic to Difficult Run (Virginia) | 333.16 mi (536.17 km) |
| Willimantic to Dinuba (California) | 2,522.32 mi (4,059.29 km) |
| Willimantic to Discovery Bay (California) | 2,598.44 mi (4,181.78 km) |
| Willimantic to Dix Hills (New York) | 86.06 mi (138.51 km) |
