| Gretna to Largo (Florida) | 461.43 mi (742.60 km) |
| Gretna to Largo (Maryland) | 974.07 mi (1,567.61 km) |
| Gretna to Larkspur (California) | 1,931.92 mi (3,109.13 km) |
| Gretna to Las Cruces (New Mexico) | 1,002.95 mi (1,614.09 km) |
| Gretna to Las Vegas (Nevada) | 1,518.82 mi (2,444.30 km) |
| Gretna to Las Vegas (New Mexico) | 963.72 mi (1,550.96 km) |
| Gretna to Latham (New York) | 1,264.35 mi (2,034.78 km) |
| Gretna to Lathrop (California) | 1,864.88 mi (3,001.24 km) |
| Gretna to Lauderdale Lakes (Florida) | 653.62 mi (1,051.90 km) |
| Gretna to Lauderhill (Florida) | 652.60 mi (1,050.26 km) |
| Gretna to Laurel (Florida) | 498.93 mi (802.95 km) |
| Gretna to Laurel (Maryland) | 981.32 mi (1,579.29 km) |
| Gretna to Laurel (Mississippi) | 134.59 mi (216.60 km) |
| Gretna to Laurel (Virginia) | 895.39 mi (1,440.98 km) |
| Gretna to Laurinburg (North Carolina) | 701.83 mi (1,129.48 km) |
