| Willimantic to Dover (New Hampshire) | 122.12 mi (196.53 km) |
| Willimantic to Dover (New Jersey) | 134.74 mi (216.84 km) |
| Willimantic to Dover (Ohio) | 489.10 mi (787.13 km) |
| Willimantic to Downers Grove (Illinois) | 813.54 mi (1,309.27 km) |
| Willimantic to Downey (California) | 2,532.05 mi (4,074.95 km) |
| Willimantic to Dranesville (Virginia) | 330.22 mi (531.44 km) |
| Willimantic to Draper (Utah) | 2,047.54 mi (3,295.20 km) |
| Willimantic to Drexel Heights (Arizona) | 2,223.54 mi (3,578.43 km) |
| Willimantic to Drexel Hill (Pennsylvania) | 202.58 mi (326.03 km) |
| Willimantic to Duarte (California) | 2,516.01 mi (4,049.13 km) |
| Willimantic to Dublin (California) | 2,618.40 mi (4,213.91 km) |
| Willimantic to Dublin (Georgia) | 865.17 mi (1,392.36 km) |
| Willimantic to Dublin (Ohio) | 581.16 mi (935.28 km) |
| Willimantic to Dubuque (Iowa) | 947.72 mi (1,525.20 km) |
| Willimantic to Duluth (Georgia) | 839.99 mi (1,351.84 km) |
