| Keystone to St. Simons (Georgia) | 222.74 mi (358.47 km) |
| Keystone to Stafford (Texas) | 790.77 mi (1,272.63 km) |
| Keystone to Stallings (North Carolina) | 495.40 mi (797.27 km) |
| Keystone to Stamford (Connecticut) | 1,031.88 mi (1,660.65 km) |
| Keystone to Stanford (California) | 2,367.72 mi (3,810.48 km) |
| Keystone to Stanton (California) | 2,122.51 mi (3,415.85 km) |
| Keystone to Star (Idaho) | 2,158.67 mi (3,474.05 km) |
| Keystone to Starkville (Mississippi) | 521.61 mi (839.44 km) |
| Keystone to State College (Pennsylvania) | 915.09 mi (1,472.69 km) |
| Keystone to Staten Island (New York) | 984.99 mi (1,585.19 km) |
| Keystone to Statesboro (Georgia) | 301.57 mi (485.34 km) |
| Keystone to Statesville (North Carolina) | 538.36 mi (866.41 km) |
| Keystone to Staunton (Virginia) | 722.31 mi (1,162.45 km) |
| Keystone to Steamboat Springs (Colorado) | 1,616.28 mi (2,601.15 km) |
| Keystone to Steiner Ranch (Texas) | 934.19 mi (1,503.44 km) |
