| Grayslake to Hazleton (Pennsylvania) | 629.55 mi (1,013.16 km) |
| Grayslake to Healdsburg (California) | 1,835.43 mi (2,953.84 km) |
| Grayslake to Heath (Ohio) | 331.85 mi (534.05 km) |
| Grayslake to Heber (Utah) | 1,213.26 mi (1,952.55 km) |
| Grayslake to Helena (Alabama) | 628.91 mi (1,012.14 km) |
| Grayslake to Helena (Montana) | 1,213.54 mi (1,953.01 km) |
| Grayslake to Hemet (California) | 1,674.56 mi (2,694.95 km) |
| Grayslake to Henderson (Kentucky) | 311.90 mi (501.95 km) |
| Grayslake to Henderson (Nevada) | 1,503.71 mi (2,419.99 km) |
| Grayslake to Henderson (North Carolina) | 660.28 mi (1,062.62 km) |
| Grayslake to Henderson (Texas) | 795.16 mi (1,279.68 km) |
| Grayslake to Hendersonville (North Carolina) | 569.82 mi (917.04 km) |
| Grayslake to Hendersonville (Tennessee) | 423.89 mi (682.19 km) |
| Grayslake to Hercules (California) | 1,818.81 mi (2,927.09 km) |
| Grayslake to Hereford (Texas) | 931.76 mi (1,499.52 km) |
