| Owings Mills to Hazelwood (Missouri) | 729.69 mi (1,174.32 km) |
| Owings Mills to Hazleton (Pennsylvania) | 114.78 mi (184.72 km) |
| Owings Mills to Healdsburg (California) | 2,446.53 mi (3,937.32 km) |
| Owings Mills to Heath (Ohio) | 303.19 mi (487.94 km) |
| Owings Mills to Heber (Utah) | 1,822.57 mi (2,933.15 km) |
| Owings Mills to Helena (Alabama) | 702.38 mi (1,130.37 km) |
| Owings Mills to Helena (Montana) | 1,831.11 mi (2,946.89 km) |
| Owings Mills to Hemet (California) | 2,246.29 mi (3,615.05 km) |
| Owings Mills to Henderson (Kentucky) | 592.01 mi (952.74 km) |
| Owings Mills to Henderson (Nevada) | 2,088.01 mi (3,360.33 km) |
| Owings Mills to Henderson (North Carolina) | 230.87 mi (371.54 km) |
| Owings Mills to Henderson (Texas) | 1,123.94 mi (1,808.81 km) |
| Owings Mills to Hendersonville (North Carolina) | 420.00 mi (675.93 km) |
| Owings Mills to Hendersonville (Tennessee) | 576.07 mi (927.09 km) |
| Owings Mills to Hercules (California) | 2,426.99 mi (3,905.86 km) |
