| Keystone to Horizon West (Florida) | 63.67 mi (102.47 km) |
| Keystone to Hormigueros (Puerto Rico) | 1,199.51 mi (1,930.42 km) |
| Keystone to Horn Lake (Mississippi) | 643.39 mi (1,035.44 km) |
| Keystone to Hot Springs (Arkansas) | 756.58 mi (1,217.60 km) |
| Keystone to Hot Springs Village (Arkansas) | 758.82 mi (1,221.20 km) |
| Keystone to Houma (Louisiana) | 500.52 mi (805.51 km) |
| Keystone to Houston (Texas) | 781.11 mi (1,257.08 km) |
| Keystone to Howard (Wisconsin) | 1,175.51 mi (1,891.81 km) |
| Keystone to Huber Heights (Ohio) | 814.93 mi (1,311.50 km) |
| Keystone to Hudson (Florida) | 16.69 mi (26.86 km) |
| Keystone to Hudson (Ohio) | 908.09 mi (1,461.43 km) |
| Keystone to Hudson (Wisconsin) | 1,289.39 mi (2,075.07 km) |
| Keystone to Hueytown (Alabama) | 450.03 mi (724.26 km) |
| Keystone to Hugo (Minnesota) | 1,307.06 mi (2,103.51 km) |
| Keystone to Humacao (Puerto Rico) | 1,267.35 mi (2,039.60 km) |
