| Keystone to Hutchinson (Kansas) | 1,118.26 mi (1,799.66 km) |
| Keystone to Hutchinson (Minnesota) | 1,326.34 mi (2,134.54 km) |
| Keystone to Hutto (Texas) | 914.65 mi (1,471.99 km) |
| Keystone to Hyattsville (Maryland) | 815.38 mi (1,312.23 km) |
| Keystone to Hybla Valley (Virginia) | 799.16 mi (1,286.12 km) |
| Keystone to Idaho Falls (Idaho) | 1,945.11 mi (3,130.35 km) |
| Keystone to Idylwood (Virginia) | 805.26 mi (1,295.93 km) |
| Keystone to Ilchester (Maryland) | 835.73 mi (1,344.98 km) |
| Keystone to Immokalee (Florida) | 138.19 mi (222.40 km) |
| Keystone to Imperial (California) | 1,981.82 mi (3,189.43 km) |
| Keystone to Imperial Beach (California) | 2,071.72 mi (3,334.12 km) |
| Keystone to Independence (Kentucky) | 755.90 mi (1,216.50 km) |
| Keystone to Independence (Missouri) | 1,013.14 mi (1,630.49 km) |
| Keystone to Indian Trail (North Carolina) | 492.99 mi (793.39 km) |
| Keystone to Indiana (Pennsylvania) | 884.89 mi (1,424.10 km) |
