| Gretna to Ashtabula (Ohio) | 974.46 mi (1,568.24 km) |
| Gretna to Ashwaubenon (Wisconsin) | 1,012.35 mi (1,629.22 km) |
| Gretna to Aspen Hill (Maryland) | 971.74 mi (1,563.86 km) |
| Gretna to Astoria (Oregon) | 2,129.57 mi (3,427.22 km) |
| Gretna to Atascadero (California) | 1,814.66 mi (2,920.41 km) |
| Gretna to Atascocita (Texas) | 307.97 mi (495.63 km) |
| Gretna to Atchison (Kansas) | 726.39 mi (1,169.02 km) |
| Gretna to Athens (Alabama) | 382.28 mi (615.22 km) |
| Gretna to Athens (Georgia) | 480.95 mi (774.01 km) |
| Gretna to Athens (Ohio) | 791.58 mi (1,273.92 km) |
| Gretna to Athens (Tennessee) | 497.03 mi (799.89 km) |
| Gretna to Athens (Texas) | 377.00 mi (606.72 km) |
| Gretna to Atlanta (Georgia) | 424.19 mi (682.67 km) |
| Gretna to Atlantic Beach (Florida) | 516.99 mi (832.01 km) |
| Gretna to Atlantic City (New Jersey) | 1,099.25 mi (1,769.07 km) |
