| Gary to Superior (Colorado) | 937.43 mi (1,508.65 km) |
| Gary to Superior (Wisconsin) | 423.45 mi (681.47 km) |
| Gary to Surprise (Arizona) | 1,471.61 mi (2,368.33 km) |
| Gary to Susanville (California) | 1,725.64 mi (2,777.15 km) |
| Gary to Sussex (Wisconsin) | 115.67 mi (186.15 km) |
| Gary to Suwanee (Georgia) | 550.70 mi (886.27 km) |
| Gary to Swansea (Illinois) | 252.11 mi (405.73 km) |
| Gary to Sweetwater (Florida) | 1,162.65 mi (1,871.10 km) |
| Gary to Sweetwater (Texas) | 955.24 mi (1,537.30 km) |
| Gary to Sycamore (Illinois) | 74.24 mi (119.48 km) |
| Gary to Sylacauga (Alabama) | 584.29 mi (940.32 km) |
| Gary to Sylvania (Ohio) | 187.99 mi (302.55 km) |
| Gary to Syosset (New York) | 720.95 mi (1,160.26 km) |
| Gary to Syracuse (New York) | 580.65 mi (934.46 km) |
| Gary to Syracuse (Utah) | 1,278.61 mi (2,057.72 km) |
