| Slidell to Hameenkyro | 5,080.03 mi (8,175.52 km) |
| Slidell to Hameenlinna | 5,139.68 mi (8,271.51 km) |
| Slidell to Hamina | 5,231.46 mi (8,419.22 km) |
| Slidell to Hanko | 5,143.29 mi (8,277.32 km) |
| Slidell to Hattula | 5,134.62 mi (8,263.37 km) |
| Slidell to Haukipudas | 4,996.19 mi (8,040.58 km) |
| Slidell to Hausjarvi | 5,163.21 mi (8,309.38 km) |
| Slidell to Heinola | 5,173.82 mi (8,326.46 km) |
| Slidell to Helsinki | 5,185.69 mi (8,345.57 km) |
| Slidell to Hollola | 5,168.41 mi (8,317.76 km) |
| Slidell to Huittinen | 5,083.95 mi (8,181.82 km) |
| Slidell to Hyvinkaa | 5,164.65 mi (8,311.70 km) |
| Slidell to Ii | 4,991.45 mi (8,032.96 km) |
| Slidell to Iisalmi | 5,105.97 mi (8,217.26 km) |
| Slidell to Ilmajoki | 5,021.40 mi (8,081.16 km) |
