| Gretna to Willow Grove (Pennsylvania) | 1,099.16 mi (1,768.92 km) |
| Gretna to Willowbrook (California) | 1,670.62 mi (2,688.61 km) |
| Gretna to Willowick (Ohio) | 941.02 mi (1,514.42 km) |
| Gretna to Wilmette (Illinois) | 850.53 mi (1,368.80 km) |
| Gretna to Wilmington (Delaware) | 1,064.63 mi (1,713.36 km) |
| Gretna to Wilmington (North Carolina) | 771.11 mi (1,240.99 km) |
| Gretna to Wilmington (Ohio) | 747.05 mi (1,202.26 km) |
| Gretna to Wilmington Island (Georgia) | 556.69 mi (895.90 km) |
| Gretna to Wilson (North Carolina) | 809.79 mi (1,303.22 km) |
| Gretna to Wilsonville (Oregon) | 2,062.12 mi (3,318.67 km) |
| Gretna to Wilton Manors (Florida) | 657.37 mi (1,057.93 km) |
| Gretna to Wimauma (Florida) | 493.28 mi (793.86 km) |
| Gretna to Winchester (Kentucky) | 651.85 mi (1,049.06 km) |
| Gretna to Winchester (Nevada) | 1,510.66 mi (2,431.17 km) |
| Gretna to Winchester (Virginia) | 929.31 mi (1,495.58 km) |
