| Keystone to San Luis Obispo (California) | 2,277.08 mi (3,664.61 km) |
| Keystone to San Marcos (California) | 2,074.83 mi (3,339.12 km) |
| Keystone to San Marcos (Texas) | 933.79 mi (1,502.79 km) |
| Keystone to San Marino (California) | 2,129.81 mi (3,427.60 km) |
| Keystone to San Mateo (California) | 2,376.25 mi (3,824.20 km) |
| Keystone to San Pablo (California) | 2,380.04 mi (3,830.31 km) |
| Keystone to San Rafael (California) | 2,389.94 mi (3,846.24 km) |
| Keystone to San Ramon (California) | 2,356.85 mi (3,792.99 km) |
| Keystone to San Tan Valley (Arizona) | 1,750.58 mi (2,817.29 km) |
| Keystone to Sand Springs (Oklahoma) | 964.01 mi (1,551.42 km) |
| Keystone to Sandusky (Ohio) | 920.04 mi (1,480.66 km) |
| Keystone to Sandy (Oregon) | 2,464.86 mi (3,966.81 km) |
| Keystone to Sandy (Utah) | 1,864.63 mi (3,000.84 km) |
| Keystone to Sandy Springs (Georgia) | 414.56 mi (667.17 km) |
| Keystone to Sanford (Florida) | 92.39 mi (148.69 km) |
