| Gretna to Superior (Colorado) | 1,098.25 mi (1,767.46 km) |
| Gretna to Superior (Wisconsin) | 1,164.77 mi (1,874.52 km) |
| Gretna to Surprise (Arizona) | 1,338.18 mi (2,153.60 km) |
| Gretna to Susanville (California) | 1,860.79 mi (2,994.65 km) |
| Gretna to Sussex (Wisconsin) | 919.28 mi (1,479.44 km) |
| Gretna to Suwanee (Georgia) | 452.38 mi (728.04 km) |
| Gretna to Swansea (Illinois) | 597.02 mi (960.81 km) |
| Gretna to Sweetwater (Florida) | 656.08 mi (1,055.86 km) |
| Gretna to Sweetwater (Texas) | 636.91 mi (1,025.01 km) |
| Gretna to Sycamore (Illinois) | 838.51 mi (1,349.44 km) |
| Gretna to Sylacauga (Alabama) | 317.46 mi (510.90 km) |
| Gretna to Sylvania (Ohio) | 888.71 mi (1,430.24 km) |
| Gretna to Syosset (New York) | 1,195.27 mi (1,923.60 km) |
| Gretna to Syracuse (New York) | 1,188.35 mi (1,912.47 km) |
| Gretna to Syracuse (Utah) | 1,453.11 mi (2,338.56 km) |
