| London Colney to Heswall | 161.52 mi (259.94 km) |
| London Colney to Hetton le Hole | 219.04 mi (352.51 km) |
| London Colney to Hexham | 236.17 mi (380.08 km) |
| London Colney to Heysham | 193.34 mi (311.15 km) |
| London Colney to Heywood | 151.83 mi (244.34 km) |
| London Colney to High Blantyre | 320.85 mi (516.36 km) |
| London Colney to High Wycombe | 20.35 mi (32.74 km) |
| London Colney to Highbury | 14.84 mi (23.89 km) |
| London Colney to Highgate | 12.57 mi (20.23 km) |
| London Colney to Hilsea | 70.28 mi (113.11 km) |
| London Colney to Hinckley | 72.40 mi (116.52 km) |
| London Colney to Hindley | 157.02 mi (252.69 km) |
| London Colney to Hipperholme | 151.96 mi (244.56 km) |
| London Colney to Hitchin | 15.29 mi (24.60 km) |
| London Colney to Hockley | 41.04 mi (66.05 km) |
