| Keystone to Shoreview (Minnesota) | 1,306.34 mi (2,102.35 km) |
| Keystone to Shorewood (Illinois) | 977.56 mi (1,573.23 km) |
| Keystone to Shorewood (Wisconsin) | 1,074.85 mi (1,729.80 km) |
| Keystone to Short Hills (New Jersey) | 989.32 mi (1,592.15 km) |
| Keystone to Short Pump (Virginia) | 718.34 mi (1,156.06 km) |
| Keystone to Show Low (Arizona) | 1,670.46 mi (2,688.34 km) |
| Keystone to Shreveport (Louisiana) | 731.40 mi (1,177.08 km) |
| Keystone to Sicklerville (New Jersey) | 912.37 mi (1,468.32 km) |
| Keystone to Sidney (Ohio) | 844.74 mi (1,359.48 km) |
| Keystone to Sierra Madre (California) | 2,126.30 mi (3,421.95 km) |
| Keystone to Sierra Vista (Arizona) | 1,673.25 mi (2,692.84 km) |
| Keystone to Sierra Vista Southeast (Arizona) | 1,667.29 mi (2,683.24 km) |
| Keystone to Signal Hill (California) | 2,132.54 mi (3,431.98 km) |
| Keystone to Sikeston (Missouri) | 728.60 mi (1,172.57 km) |
| Keystone to Siloam Springs (Arkansas) | 891.31 mi (1,434.43 km) |
