| Cities | Distance |
|---|---|
| Seclin to Hetton le Hole | 349.61 mi (562.64 km) |
| Seclin to Hexham | 373.14 mi (600.51 km) |
| Seclin to Heysham | 347.70 mi (559.58 km) |
| Seclin to Heywood | 306.21 mi (492.80 km) |
| Seclin to High Blantyre | 466.87 mi (751.36 km) |
| Seclin to High Wycombe | 180.11 mi (289.86 km) |
| Seclin to Highbury | 152.46 mi (245.36 km) |
| Seclin to Highgate | 154.90 mi (249.28 km) |
| Seclin to Hilsea | 180.47 mi (290.44 km) |
| Seclin to Hinckley | 233.90 mi (376.42 km) |
| Seclin to Hindley | 314.70 mi (506.46 km) |
| Seclin to Hipperholme | 300.45 mi (483.53 km) |
| Seclin to Hitchin | 172.78 mi (278.06 km) |
| Seclin to Hockley | 126.82 mi (204.10 km) |
| Seclin to Hoddesdon | 156.20 mi (251.38 km) |