| Knowle to Hormigueros (Puerto Rico) | 4,199.25 mi (6,758.04 km) |
| Knowle to Horn Lake (Mississippi) | 4,288.17 mi (6,901.14 km) |
| Knowle to Hot Springs (Arkansas) | 4,428.05 mi (7,126.26 km) |
| Knowle to Hot Springs Village (Arkansas) | 4,416.25 mi (7,107.26 km) |
| Knowle to Houma (Louisiana) | 4,586.95 mi (7,381.98 km) |
| Knowle to Houston (Texas) | 4,761.64 mi (7,663.12 km) |
| Knowle to Howard (Wisconsin) | 3,751.86 mi (6,038.03 km) |
| Knowle to Huber Heights (Ohio) | 3,818.28 mi (6,144.93 km) |
| Knowle to Hudson (Florida) | 4,323.07 mi (6,957.31 km) |
| Knowle to Hudson (Ohio) | 3,650.16 mi (5,874.36 km) |
| Knowle to Hudson (Wisconsin) | 3,902.24 mi (6,280.05 km) |
| Knowle to Hueytown (Alabama) | 4,244.68 mi (6,831.15 km) |
| Knowle to Hugo (Minnesota) | 3,900.81 mi (6,277.75 km) |
| Knowle to Humacao (Puerto Rico) | 4,144.63 mi (6,670.14 km) |
| Knowle to Humble (Texas) | 4,746.05 mi (7,638.03 km) |
