| London Colney to Hazleton (Pennsylvania) | 3,518.74 mi (5,662.87 km) |
| London Colney to Healdsburg (California) | 5,301.54 mi (8,532.01 km) |
| London Colney to Heath (Ohio) | 3,818.67 mi (6,145.55 km) |
| London Colney to Heber (Utah) | 4,843.39 mi (7,794.68 km) |
| London Colney to Helena (Alabama) | 4,318.43 mi (6,949.84 km) |
| London Colney to Helena (Montana) | 4,533.60 mi (7,296.12 km) |
| London Colney to Hemet (California) | 5,402.91 mi (8,695.14 km) |
| London Colney to Henderson (Kentucky) | 4,123.56 mi (6,636.23 km) |
| London Colney to Henderson (Nevada) | 5,210.24 mi (8,385.07 km) |
| London Colney to Henderson (North Carolina) | 3,827.86 mi (6,160.35 km) |
| London Colney to Henderson (Texas) | 4,689.23 mi (7,546.59 km) |
| London Colney to Hendersonville (North Carolina) | 4,040.15 mi (6,502.00 km) |
| London Colney to Hendersonville (Tennessee) | 4,159.07 mi (6,693.38 km) |
| London Colney to Hercules (California) | 5,319.67 mi (8,561.19 km) |
| London Colney to Hereford (Texas) | 4,837.86 mi (7,785.79 km) |
