| Northampton to Decatur (Georgia) | 4,155.16 mi (6,687.09 km) |
| Northampton to Decatur (Illinois) | 4,041.20 mi (6,503.68 km) |
| Northampton to Deer Park (New York) | 3,384.94 mi (5,447.53 km) |
| Northampton to Deer Park (Texas) | 4,792.87 mi (7,713.39 km) |
| Northampton to Deerfield (Illinois) | 3,890.54 mi (6,261.22 km) |
| Northampton to Deerfield Beach (Florida) | 4,357.87 mi (7,013.32 km) |
| Northampton to Defiance (Ohio) | 3,798.80 mi (6,113.57 km) |
| Northampton to DeForest (Wisconsin) | 3,896.35 mi (6,270.56 km) |
| Northampton to DeKalb (Illinois) | 3,935.24 mi (6,333.16 km) |
| Northampton to Del Aire (California) | 5,394.68 mi (8,681.90 km) |
| Northampton to Del City (Oklahoma) | 4,582.55 mi (7,374.90 km) |
| Northampton to Del Rio (Texas) | 5,032.36 mi (8,098.79 km) |
| Northampton to DeLand (Florida) | 4,268.49 mi (6,869.47 km) |
| Northampton to Delano (California) | 5,316.43 mi (8,555.96 km) |
| Northampton to Delaware (Ohio) | 3,794.76 mi (6,107.08 km) |
