| Prospect Heights to Duluth (Minnesota) | 383.76 mi (617.61 km) |
| Prospect Heights to Dumas (Texas) | 866.98 mi (1,395.28 km) |
| Prospect Heights to Dumont (New Jersey) | 724.41 mi (1,165.83 km) |
| Prospect Heights to Duncan (Oklahoma) | 751.72 mi (1,209.77 km) |
| Prospect Heights to Duncanville (Texas) | 817.78 mi (1,316.09 km) |
| Prospect Heights to Dundalk (Maryland) | 629.57 mi (1,013.19 km) |
| Prospect Heights to Dunedin (Florida) | 1,014.21 mi (1,632.22 km) |
| Prospect Heights to Dunkirk (New York) | 439.83 mi (707.85 km) |
| Prospect Heights to Dunmore (Pennsylvania) | 636.17 mi (1,023.82 km) |
| Prospect Heights to Dunwoody (Georgia) | 597.12 mi (960.97 km) |
| Prospect Heights to Durango (Colorado) | 1,109.25 mi (1,785.17 km) |
| Prospect Heights to Durant (Oklahoma) | 724.51 mi (1,165.99 km) |
| Prospect Heights to Durham (North Carolina) | 642.46 mi (1,033.94 km) |
| Prospect Heights to Dyer (Indiana) | 47.09 mi (75.78 km) |
| Prospect Heights to Dyersburg (Tennessee) | 425.68 mi (685.07 km) |
