| Keystone to Isabela (Puerto Rico) | 1,189.70 mi (1,914.63 km) |
| Keystone to Iselin (New Jersey) | 979.59 mi (1,576.50 km) |
| Keystone to Isla Vista (California) | 2,230.00 mi (3,588.84 km) |
| Keystone to Issaquah (Washington) | 2,497.23 mi (4,018.90 km) |
| Keystone to Ithaca (New York) | 1,046.25 mi (1,683.77 km) |
| Keystone to Ives Estates (Florida) | 211.08 mi (339.69 km) |
| Keystone to Jackson (Michigan) | 980.28 mi (1,577.60 km) |
| Keystone to Jackson (Mississippi) | 538.41 mi (866.48 km) |
| Keystone to Jackson (Missouri) | 758.51 mi (1,220.70 km) |
| Keystone to Jackson (Tennessee) | 635.22 mi (1,022.29 km) |
| Keystone to Jackson (Wyoming) | 1,886.92 mi (3,036.71 km) |
| Keystone to Jacksonville (Alabama) | 434.46 mi (699.19 km) |
| Keystone to Jacksonville (Arkansas) | 729.18 mi (1,173.50 km) |
| Keystone to Jacksonville (Florida) | 161.98 mi (260.68 km) |
| Keystone to Jacksonville (Illinois) | 912.11 mi (1,467.89 km) |
