| Gretna to Security-Widefield (Colorado) | 1,033.60 mi (1,663.42 km) |
| Gretna to Sedalia (Missouri) | 634.17 mi (1,020.59 km) |
| Gretna to Sedro-Woolley (Washington) | 2,123.55 mi (3,417.53 km) |
| Gretna to Seguin (Texas) | 475.29 mi (764.90 km) |
| Gretna to Selden (New York) | 1,217.24 mi (1,958.97 km) |
| Gretna to Selma (Alabama) | 248.63 mi (400.13 km) |
| Gretna to Selma (California) | 1,761.55 mi (2,834.93 km) |
| Gretna to Selma (Texas) | 496.00 mi (798.23 km) |
| Gretna to Seminole (Florida) | 462.19 mi (743.83 km) |
| Gretna to Seven Hills (Ohio) | 920.51 mi (1,481.42 km) |
| Gretna to Seven Oaks (South Carolina) | 594.87 mi (957.36 km) |
| Gretna to Severn (Maryland) | 990.19 mi (1,593.56 km) |
| Gretna to Severna Park (Maryland) | 993.75 mi (1,599.29 km) |
| Gretna to Sevierville (Tennessee) | 558.30 mi (898.49 km) |
| Gretna to Seymour (Indiana) | 667.71 mi (1,074.58 km) |
