| Gretna to Wanaque (New Jersey) | 1,170.61 mi (1,883.91 km) |
| Gretna to Wantagh (New York) | 1,189.27 mi (1,913.94 km) |
| Gretna to Warner Robins (Georgia) | 420.95 mi (677.45 km) |
| Gretna to Warr Acres (Oklahoma) | 586.29 mi (943.54 km) |
| Gretna to Warren (Michigan) | 952.68 mi (1,533.19 km) |
| Gretna to Warren (Ohio) | 937.85 mi (1,509.33 km) |
| Gretna to Warrensburg (Missouri) | 646.42 mi (1,040.31 km) |
| Gretna to Warrensville Heights (Ohio) | 928.06 mi (1,493.57 km) |
| Gretna to Warrenville (Illinois) | 829.50 mi (1,334.95 km) |
| Gretna to Warrington (Florida) | 167.93 mi (270.26 km) |
| Gretna to Warsaw (Indiana) | 817.74 mi (1,316.02 km) |
| Gretna to Warwick (Rhode Island) | 1,318.88 mi (2,122.53 km) |
| Gretna to Wasco (California) | 1,741.25 mi (2,802.26 km) |
| Gretna to Washington (District of Columbia) | 966.89 mi (1,556.06 km) |
| Gretna to Washington (Illinois) | 746.66 mi (1,201.64 km) |
