| Gretna to Holiday (Florida) | 457.14 mi (735.69 km) |
| Gretna to Holiday City-Berkeley (New Jersey) | 1,128.70 mi (1,816.47 km) |
| Gretna to Holladay (Utah) | 1,429.05 mi (2,299.83 km) |
| Gretna to Holland (Michigan) | 914.92 mi (1,472.42 km) |
| Gretna to Hollins (Virginia) | 774.54 mi (1,246.51 km) |
| Gretna to Hollister (California) | 1,861.90 mi (2,996.44 km) |
| Gretna to Holly Hill (Florida) | 542.92 mi (873.75 km) |
| Gretna to Holly Springs (Georgia) | 439.01 mi (706.52 km) |
| Gretna to Holly Springs (North Carolina) | 761.84 mi (1,226.06 km) |
| Gretna to Hollywood (Florida) | 659.70 mi (1,061.68 km) |
| Gretna to Holmen (Wisconsin) | 973.77 mi (1,567.12 km) |
| Gretna to Holt (Michigan) | 931.30 mi (1,498.78 km) |
| Gretna to Holtsville (New York) | 1,215.11 mi (1,955.52 km) |
| Gretna to Holyoke (Massachusetts) | 1,286.93 mi (2,071.11 km) |
| Gretna to Home Gardens (California) | 1,629.03 mi (2,621.67 km) |
