| Gretna to San Luis Obispo (California) | 1,812.86 mi (2,917.52 km) |
| Gretna to San Marcos (California) | 1,608.38 mi (2,588.44 km) |
| Gretna to San Marcos (Texas) | 472.19 mi (759.91 km) |
| Gretna to San Marino (California) | 1,664.11 mi (2,678.13 km) |
| Gretna to San Mateo (California) | 1,916.95 mi (3,085.03 km) |
| Gretna to San Pablo (California) | 1,921.92 mi (3,093.03 km) |
| Gretna to San Rafael (California) | 1,931.86 mi (3,109.03 km) |
| Gretna to San Ramon (California) | 1,898.23 mi (3,054.91 km) |
| Gretna to San Tan Valley (Arizona) | 1,284.26 mi (2,066.82 km) |
| Gretna to Sand Springs (Oklahoma) | 555.54 mi (894.05 km) |
| Gretna to Sandusky (Ohio) | 896.64 mi (1,443.00 km) |
| Gretna to Sandy (Oregon) | 2,041.38 mi (3,285.29 km) |
| Gretna to Sandy (Utah) | 1,427.85 mi (2,297.90 km) |
| Gretna to Sandy Springs (Georgia) | 433.90 mi (698.30 km) |
| Gretna to Sanford (Florida) | 534.03 mi (859.43 km) |
