| Watford to Hazebrouck | 142.40 mi (229.17 km) |
| Watford to Hellemmes-Lille | 167.69 mi (269.87 km) |
| Watford to Hem | 169.94 mi (273.49 km) |
| Watford to Hendaye | 576.80 mi (928.27 km) |
| Watford to Henin-Beaumont | 168.50 mi (271.17 km) |
| Watford to Hennebont | 295.53 mi (475.61 km) |
| Watford to Hericourt | 426.30 mi (686.06 km) |
| Watford to Herouville-Saint-Clair | 169.35 mi (272.54 km) |
| Watford to Hirson | 229.35 mi (369.10 km) |
| Watford to Hoenheim | 416.93 mi (670.98 km) |
| Watford to Houilles | 220.36 mi (354.63 km) |
| Watford to Hyeres | 663.45 mi (1,067.71 km) |
| Watford to Ifs | 173.90 mi (279.86 km) |
| Watford to Igny | 232.24 mi (373.75 km) |
| Watford to Illkirch-Graffenstaden | 419.21 mi (674.66 km) |
