| Seia to Hetton le Hole | 1,035.60 mi (1,666.65 km) |
| Seia to Hexham | 1,037.61 mi (1,669.87 km) |
| Seia to Heysham | 967.41 mi (1,556.90 km) |
| Seia to Heywood | 945.08 mi (1,520.96 km) |
| Seia to High Blantyre | 1,074.61 mi (1,729.42 km) |
| Seia to High Wycombe | 842.19 mi (1,355.37 km) |
| Seia to Highbury | 850.18 mi (1,368.24 km) |
| Seia to Highgate | 850.41 mi (1,368.60 km) |
| Seia to Hilsea | 786.52 mi (1,265.78 km) |
| Seia to Hinckley | 889.02 mi (1,430.74 km) |
| Seia to Hindley | 937.23 mi (1,508.33 km) |
| Seia to Hipperholme | 959.26 mi (1,543.78 km) |
| Seia to Hitchin | 870.72 mi (1,401.29 km) |
| Seia to Hockley | 868.59 mi (1,397.87 km) |
| Seia to Hoddesdon | 864.45 mi (1,391.20 km) |
