| Slidell to Hoyo de Manzanares | 4,695.37 mi (7,556.47 km) |
| Slidell to Huelva | 4,627.92 mi (7,447.91 km) |
| Slidell to Huercal de Almeria | 4,867.54 mi (7,833.56 km) |
| Slidell to Huercal-Overa | 4,878.81 mi (7,851.69 km) |
| Slidell to Huesca | 4,822.13 mi (7,760.47 km) |
| Slidell to Huetor Vega | 4,802.85 mi (7,729.43 km) |
| Slidell to Huetor-Tajar | 4,777.33 mi (7,688.36 km) |
| Slidell to Humanes de Madrid | 4,707.80 mi (7,576.48 km) |
| Slidell to Ibi | 4,911.45 mi (7,904.22 km) |
| Slidell to Ibiza | 5,001.71 mi (8,049.48 km) |
| Slidell to Icod de los Vinos | 4,323.33 mi (6,957.72 km) |
| Slidell to Igualada | 4,933.46 mi (7,939.63 km) |
| Slidell to Illescas | 4,711.07 mi (7,581.73 km) |
| Slidell to Inca | 5,049.50 mi (8,126.38 km) |
| Slidell to Ingenio | 4,406.03 mi (7,090.83 km) |
