| Delaware to Hilliard (Ohio) | 17.82 mi (28.67 km) |
| Delaware to Hillsboro (Oregon) | 2,028.12 mi (3,263.94 km) |
| Delaware to Hillsborough (California) | 2,102.86 mi (3,384.23 km) |
| Delaware to Hillsborough (New Jersey) | 443.25 mi (713.35 km) |
| Delaware to Hilo (Hawaii) | 4,416.37 mi (7,107.47 km) |
| Delaware to Hilton Head Island (South Carolina) | 574.08 mi (923.90 km) |
| Delaware to Hinesville (Georgia) | 590.19 mi (949.82 km) |
| Delaware to Hinsdale (Illinois) | 273.68 mi (440.44 km) |
| Delaware to Hobart (Indiana) | 235.11 mi (378.38 km) |
| Delaware to Hobbs (New Mexico) | 1,227.86 mi (1,976.05 km) |
| Delaware to Hobe Sound (Florida) | 928.15 mi (1,493.71 km) |
| Delaware to Hoboken (New Jersey) | 476.01 mi (766.06 km) |
| Delaware to Hockessin (Delaware) | 392.50 mi (631.66 km) |
| Delaware to Hoffman Estates (Illinois) | 290.98 mi (468.28 km) |
| Delaware to Holbrook (New York) | 526.18 mi (846.81 km) |
