| Middletown to Decatur (Alabama) | 370.07 mi (595.58 km) |
| Middletown to Decatur (Georgia) | 396.08 mi (637.42 km) |
| Middletown to Decatur (Illinois) | 244.11 mi (392.86 km) |
| Middletown to Deer Park (New York) | 589.45 mi (948.63 km) |
| Middletown to Deer Park (Texas) | 911.56 mi (1,467.01 km) |
| Middletown to Deerfield (Illinois) | 258.87 mi (416.60 km) |
| Middletown to Deerfield Beach (Florida) | 944.15 mi (1,519.46 km) |
| Middletown to Defiance (Ohio) | 122.85 mi (197.70 km) |
| Middletown to DeForest (Wisconsin) | 364.44 mi (586.51 km) |
| Middletown to DeKalb (Illinois) | 284.21 mi (457.39 km) |
| Middletown to Del Aire (California) | 1,910.75 mi (3,075.06 km) |
| Middletown to Del City (Oklahoma) | 768.81 mi (1,237.29 km) |
| Middletown to Del Rio (Texas) | 1,169.68 mi (1,882.42 km) |
| Middletown to DeLand (Florida) | 745.04 mi (1,199.03 km) |
| Middletown to Delano (California) | 1,914.76 mi (3,081.51 km) |
