| Slidell to Horizon West (Florida) | 508.00 mi (817.55 km) |
| Slidell to Hormigueros (Puerto Rico) | 1,651.26 mi (2,657.45 km) |
| Slidell to Horn Lake (Mississippi) | 322.52 mi (519.05 km) |
| Slidell to Hot Springs (Arkansas) | 347.18 mi (558.73 km) |
| Slidell to Hot Springs Village (Arkansas) | 354.16 mi (569.97 km) |
| Slidell to Houma (Louisiana) | 73.84 mi (118.84 km) |
| Slidell to Houston (Texas) | 337.06 mi (542.44 km) |
| Slidell to Howard (Wisconsin) | 991.05 mi (1,594.94 km) |
| Slidell to Huber Heights (Ohio) | 734.48 mi (1,182.03 km) |
| Slidell to Hudson (Florida) | 447.51 mi (720.20 km) |
| Slidell to Hudson (Ohio) | 888.49 mi (1,429.89 km) |
| Slidell to Hudson (Wisconsin) | 1,026.52 mi (1,652.02 km) |
| Slidell to Hueytown (Alabama) | 270.48 mi (435.30 km) |
| Slidell to Hugo (Minnesota) | 1,042.32 mi (1,677.45 km) |
| Slidell to Humacao (Puerto Rico) | 1,721.50 mi (2,770.48 km) |
