| Southborough to Dover (New Jersey) | 3,500.14 mi (5,632.93 km) |
| Southborough to Dover (Ohio) | 3,795.17 mi (6,107.74 km) |
| Southborough to Downers Grove (Illinois) | 3,992.44 mi (6,425.20 km) |
| Southborough to Downey (California) | 5,472.07 mi (8,806.44 km) |
| Southborough to Dranesville (Virginia) | 3,698.04 mi (5,951.42 km) |
| Southborough to Draper (Utah) | 4,903.05 mi (7,890.70 km) |
| Southborough to Drexel Heights (Arizona) | 5,334.51 mi (8,585.07 km) |
| Southborough to Drexel Hill (Pennsylvania) | 3,571.23 mi (5,747.33 km) |
| Southborough to Duarte (California) | 5,453.51 mi (8,776.57 km) |
| Southborough to Dublin (California) | 5,371.07 mi (8,643.90 km) |
| Southborough to Dublin (Georgia) | 4,229.30 mi (6,806.40 km) |
| Southborough to Dublin (Ohio) | 3,880.34 mi (6,244.80 km) |
| Southborough to Dubuque (Iowa) | 4,061.09 mi (6,535.69 km) |
| Southborough to Duluth (Georgia) | 4,208.32 mi (6,772.63 km) |
| Southborough to Duluth (Minnesota) | 3,915.11 mi (6,300.77 km) |
