| Gretna to Southern Pines (North Carolina) | 718.91 mi (1,156.97 km) |
| Gretna to Southfield (Michigan) | 946.41 mi (1,523.10 km) |
| Gretna to Southgate (Michigan) | 930.76 mi (1,497.91 km) |
| Gretna to Southlake (Texas) | 468.24 mi (753.55 km) |
| Gretna to Spanaway (Washington) | 2,091.62 mi (3,366.14 km) |
| Gretna to Spanish Fork (Utah) | 1,404.88 mi (2,260.94 km) |
| Gretna to Spanish Lake (Missouri) | 613.50 mi (987.33 km) |
| Gretna to Spanish Springs (Nevada) | 1,800.24 mi (2,897.20 km) |
| Gretna to Sparks (Nevada) | 1,801.40 mi (2,899.08 km) |
| Gretna to Spartanburg (South Carolina) | 587.51 mi (945.50 km) |
| Gretna to Spearfish (South Dakota) | 1,256.67 mi (2,022.42 km) |
| Gretna to Speedway (Indiana) | 715.93 mi (1,152.18 km) |
| Gretna to Spencer (Iowa) | 956.92 mi (1,540.02 km) |
| Gretna to Spokane (Washington) | 1,900.51 mi (3,058.58 km) |
| Gretna to Spokane Valley (Washington) | 1,892.40 mi (3,045.52 km) |
