| Slough to Hilliard (Ohio) | 3,840.93 mi (6,181.37 km) |
| Slough to Hillsboro (Oregon) | 4,907.09 mi (7,897.20 km) |
| Slough to Hillsborough (California) | 5,351.20 mi (8,611.92 km) |
| Slough to Hillsborough (New Jersey) | 3,477.68 mi (5,596.78 km) |
| Slough to Hilo (Hawaii) | 7,281.08 mi (11,717.76 km) |
| Slough to Hilton Head Island (South Carolina) | 4,113.70 mi (6,620.36 km) |
| Slough to Hinesville (Georgia) | 4,167.37 mi (6,706.73 km) |
| Slough to Hinsdale (Illinois) | 3,944.91 mi (6,348.73 km) |
| Slough to Hobart (Indiana) | 3,933.18 mi (6,329.85 km) |
| Slough to Hobbs (New Mexico) | 4,973.95 mi (8,004.80 km) |
| Slough to Hobe Sound (Florida) | 4,340.82 mi (6,985.87 km) |
| Slough to Hoboken (New Jersey) | 3,441.85 mi (5,539.13 km) |
| Slough to Hockessin (Delaware) | 3,551.39 mi (5,715.41 km) |
| Slough to Hoffman Estates (Illinois) | 3,941.05 mi (6,342.51 km) |
| Slough to Holbrook (New York) | 3,400.51 mi (5,472.59 km) |
