| Gretna to Santa Rosa (California) | 1,945.82 mi (3,131.50 km) |
| Gretna to Santaquin (Utah) | 1,408.58 mi (2,266.89 km) |
| Gretna to Santee (California) | 1,597.31 mi (2,570.62 km) |
| Gretna to Sapulpa (Oklahoma) | 547.95 mi (881.84 km) |
| Gretna to Saraland (Alabama) | 133.13 mi (214.25 km) |
| Gretna to Sarasota (Florida) | 488.66 mi (786.43 km) |
| Gretna to Sarasota Springs (Florida) | 493.35 mi (793.97 km) |
| Gretna to Saratoga (California) | 1,899.24 mi (3,056.53 km) |
| Gretna to Saratoga Springs (New York) | 1,277.57 mi (2,056.05 km) |
| Gretna to Saratoga Springs (Utah) | 1,424.65 mi (2,292.75 km) |
| Gretna to Sartell (Minnesota) | 1,108.58 mi (1,784.09 km) |
| Gretna to Satellite Beach (Florida) | 583.02 mi (938.27 km) |
| Gretna to Sauk Rapids (Minnesota) | 1,106.46 mi (1,780.67 km) |
| Gretna to Sault Ste. Marie (Michigan) | 1,184.97 mi (1,907.03 km) |
| Gretna to Savage (Minnesota) | 1,041.41 mi (1,675.99 km) |
