| Gretna to Salisbury (New York) | 1,190.03 mi (1,915.16 km) |
| Gretna to Salisbury (North Carolina) | 682.48 mi (1,098.34 km) |
| Gretna to Salmon Creek (Washington) | 2,066.73 mi (3,326.08 km) |
| Gretna to Salt Lake City (Utah) | 1,437.59 mi (2,313.58 km) |
| Gretna to Sammamish (Washington) | 2,089.19 mi (3,362.23 km) |
| Gretna to San Angelo (Texas) | 626.70 mi (1,008.58 km) |
| Gretna to San Anselmo (California) | 1,934.37 mi (3,113.07 km) |
| Gretna to San Antonio (Texas) | 509.37 mi (819.75 km) |
| Gretna to San Benito (Texas) | 531.48 mi (855.33 km) |
| Gretna to San Bernardino (California) | 1,617.38 mi (2,602.93 km) |
| Gretna to San Bruno (California) | 1,924.00 mi (3,096.37 km) |
| Gretna to San Buenaventura (California) | 1,728.35 mi (2,781.52 km) |
| Gretna to San Carlos (California) | 1,914.12 mi (3,080.48 km) |
| Gretna to San Carlos Park (Florida) | 554.40 mi (892.21 km) |
| Gretna to San Clemente (California) | 1,633.87 mi (2,629.46 km) |
