| Watford to Hameenkyro | 1,120.22 mi (1,802.82 km) |
| Watford to Hameenlinna | 1,139.43 mi (1,833.73 km) |
| Watford to Hamina | 1,215.32 mi (1,955.87 km) |
| Watford to Hanko | 1,061.42 mi (1,708.19 km) |
| Watford to Hattula | 1,138.16 mi (1,831.69 km) |
| Watford to Haukipudas | 1,301.94 mi (2,095.27 km) |
| Watford to Hausjarvi | 1,151.31 mi (1,852.85 km) |
| Watford to Heinola | 1,193.21 mi (1,920.28 km) |
| Watford to Helsinki | 1,133.34 mi (1,823.93 km) |
| Watford to Hollola | 1,171.67 mi (1,885.62 km) |
| Watford to Huittinen | 1,091.15 mi (1,756.03 km) |
| Watford to Hyvinkaa | 1,141.86 mi (1,837.65 km) |
| Watford to Ii | 1,307.58 mi (2,104.34 km) |
| Watford to Iisalmi | 1,293.57 mi (2,081.81 km) |
| Watford to Ilmajoki | 1,140.15 mi (1,834.89 km) |
