| Williamstown to Darby (Pennsylvania) | 22.03 mi (35.45 km) |
| Williamstown to Dardenne Prairie (Missouri) | 844.58 mi (1,359.22 km) |
| Williamstown to Darien (Illinois) | 694.94 mi (1,118.40 km) |
| Williamstown to Davenport (Iowa) | 828.45 mi (1,333.26 km) |
| Williamstown to Davidson (North Carolina) | 432.02 mi (695.27 km) |
| Williamstown to Davie (Florida) | 988.90 mi (1,591.48 km) |
| Williamstown to Davis (California) | 2,478.78 mi (3,989.22 km) |
| Williamstown to Dayton (Nevada) | 2,353.11 mi (3,786.97 km) |
| Williamstown to Dayton (Ohio) | 489.81 mi (788.28 km) |
| Williamstown to Daytona Beach (Florida) | 803.64 mi (1,293.34 km) |
| Williamstown to De Pere (Wisconsin) | 746.48 mi (1,201.34 km) |
| Williamstown to De Witt (New York) | 237.93 mi (382.91 km) |
| Williamstown to Dearborn (Michigan) | 465.87 mi (749.74 km) |
| Williamstown to Dearborn Heights (Michigan) | 469.02 mi (754.82 km) |
| Williamstown to DeBary (Florida) | 829.27 mi (1,334.58 km) |
