| Frederick to Hazleton (Pennsylvania) | 129.50 mi (208.42 km) |
| Frederick to Healdsburg (California) | 2,413.87 mi (3,884.75 km) |
| Frederick to Heath (Ohio) | 270.19 mi (434.84 km) |
| Frederick to Heber (Utah) | 1,789.89 mi (2,880.55 km) |
| Frederick to Helena (Alabama) | 676.02 mi (1,087.95 km) |
| Frederick to Helena (Montana) | 1,800.88 mi (2,898.24 km) |
| Frederick to Hemet (California) | 2,213.01 mi (3,561.50 km) |
| Frederick to Henderson (Kentucky) | 559.26 mi (900.05 km) |
| Frederick to Henderson (Nevada) | 2,054.78 mi (3,306.85 km) |
| Frederick to Henderson (North Carolina) | 221.57 mi (356.59 km) |
| Frederick to Henderson (Texas) | 1,093.56 mi (1,759.91 km) |
| Frederick to Hendersonville (North Carolina) | 396.44 mi (638.02 km) |
| Frederick to Hendersonville (Tennessee) | 545.27 mi (877.53 km) |
| Frederick to Hercules (California) | 2,394.19 mi (3,853.08 km) |
| Frederick to Hereford (Texas) | 1,407.90 mi (2,265.80 km) |
