| Prospect Heights to Delaware (Ohio) | 281.80 mi (453.51 km) |
| Prospect Heights to Delhi (California) | 1,762.94 mi (2,837.18 km) |
| Prospect Heights to Delray Beach (Florida) | 1,168.81 mi (1,881.03 km) |
| Prospect Heights to Deltona (Florida) | 986.19 mi (1,587.13 km) |
| Prospect Heights to Deming (New Mexico) | 1,281.01 mi (2,061.58 km) |
| Prospect Heights to Denison (Texas) | 743.59 mi (1,196.69 km) |
| Prospect Heights to Dent (Ohio) | 264.19 mi (425.16 km) |
| Prospect Heights to Denton (Texas) | 793.36 mi (1,276.78 km) |
| Prospect Heights to Dentsville (South Carolina) | 671.35 mi (1,080.44 km) |
| Prospect Heights to Denver (Colorado) | 897.83 mi (1,444.91 km) |
| Prospect Heights to Depew (New York) | 472.80 mi (760.90 km) |
| Prospect Heights to Derby (Connecticut) | 766.47 mi (1,233.51 km) |
| Prospect Heights to Derby (Kansas) | 585.71 mi (942.62 km) |
| Prospect Heights to Des Moines (Iowa) | 294.82 mi (474.47 km) |
| Prospect Heights to Des Moines (Washington) | 1,711.81 mi (2,754.89 km) |
