| Royston to Hormigueros (Puerto Rico) | 4,268.10 mi (6,868.85 km) |
| Royston to Horn Lake (Mississippi) | 4,364.11 mi (7,023.35 km) |
| Royston to Hot Springs (Arkansas) | 4,503.78 mi (7,248.14 km) |
| Royston to Hot Springs Village (Arkansas) | 4,491.97 mi (7,229.12 km) |
| Royston to Houma (Louisiana) | 4,663.12 mi (7,504.57 km) |
| Royston to Houston (Texas) | 4,837.60 mi (7,785.36 km) |
| Royston to Howard (Wisconsin) | 3,826.52 mi (6,158.19 km) |
| Royston to Huber Heights (Ohio) | 3,894.19 mi (6,267.10 km) |
| Royston to Hudson (Florida) | 4,398.89 mi (7,079.33 km) |
| Royston to Hudson (Ohio) | 3,726.12 mi (5,996.60 km) |
| Royston to Hudson (Wisconsin) | 3,976.00 mi (6,398.75 km) |
| Royston to Hueytown (Alabama) | 4,320.84 mi (6,953.72 km) |
| Royston to Hugo (Minnesota) | 3,974.46 mi (6,396.27 km) |
| Royston to Humacao (Puerto Rico) | 4,212.86 mi (6,779.95 km) |
| Royston to Humble (Texas) | 4,821.99 mi (7,760.25 km) |
