| Gretna to Los Alamos (New Mexico) | 1,026.77 mi (1,652.43 km) |
| Gretna to Los Altos (California) | 1,903.81 mi (3,063.89 km) |
| Gretna to Los Angeles (California) | 1,680.87 mi (2,705.10 km) |
| Gretna to Los Banos (California) | 1,832.80 mi (2,949.60 km) |
| Gretna to Los Gatos (California) | 1,895.13 mi (3,049.92 km) |
| Gretna to Los Lunas (New Mexico) | 1,031.84 mi (1,660.58 km) |
| Gretna to Los Osos (California) | 1,821.75 mi (2,931.82 km) |
| Gretna to Loudoun Valley Estates (Virginia) | 948.83 mi (1,527.00 km) |
| Gretna to Louisville (Colorado) | 1,099.06 mi (1,768.76 km) |
| Gretna to Louisville (Kentucky) | 623.45 mi (1,003.35 km) |
| Gretna to Lovejoy (Georgia) | 416.10 mi (669.64 km) |
| Gretna to Loveland (Colorado) | 1,113.32 mi (1,791.71 km) |
| Gretna to Loveland (Ohio) | 724.87 mi (1,166.56 km) |
| Gretna to Loves Park (Illinois) | 860.57 mi (1,384.95 km) |
| Gretna to Lovington (New Mexico) | 809.24 mi (1,302.34 km) |
