| Gretna to Miami (Florida) | 665.04 mi (1,070.27 km) |
| Gretna to Chicago (Illinois) | 834.57 mi (1,343.12 km) |
| Gretna to Detroit (Michigan) | 944.16 mi (1,519.49 km) |
| Gretna to Washington (District of Columbia) | 966.89 mi (1,556.06 km) |
| Gretna to Baltimore (Maryland) | 1,000.62 mi (1,610.34 km) |
| Gretna to Minneapolis (Minnesota) | 1,054.71 mi (1,697.40 km) |
| Gretna to Denver (Colorado) | 1,079.15 mi (1,736.72 km) |
| Gretna to Philadelphia (Pennsylvania) | 1,092.90 mi (1,758.85 km) |
| Gretna to Brooklyn (New York) | 1,169.45 mi (1,882.05 km) |
| Gretna to New York (New York) | 1,172.24 mi (1,886.54 km) |
| Gretna to Queens (New York) | 1,179.91 mi (1,898.88 km) |
| Gretna to Phoenix (Arizona) | 1,316.75 mi (2,119.11 km) |
| Gretna to Boston (Massachusetts) | 1,356.75 mi (2,183.48 km) |
| Gretna to Las Vegas (Nevada) | 1,518.82 mi (2,444.30 km) |
| Gretna to San Diego (California) | 1,605.27 mi (2,583.43 km) |
| Gretna to Riverside (California) | 1,622.50 mi (2,611.16 km) |
| Gretna to Los Angeles (California) | 1,680.87 mi (2,705.10 km) |
| Gretna to San Francisco (California) | 1,925.75 mi (3,099.20 km) |
| Gretna to Portland (Oregon) | 2,061.98 mi (3,318.44 km) |
| Gretna to Seattle (Washington) | 2,101.76 mi (3,382.46 km) |
| Gretna to Houston (Texas) | 319.92 mi (514.86 km) |
| Gretna to Atlanta (Georgia) | 424.19 mi (682.67 km) |
| Gretna to Dallas (Texas) | 443.36 mi (713.52 km) |
| Gretna to Tampa (Florida) | 478.44 mi (769.98 km) |
| Gretna to St. Louis (Missouri) | 603.00 mi (970.43 km) |
