| Gretna to University Place (Washington) | 2,100.09 mi (3,379.76 km) |
| Gretna to Upland (California) | 1,638.22 mi (2,636.46 km) |
| Gretna to Upper Arlington (Ohio) | 802.37 mi (1,291.30 km) |
| Gretna to Upper Grand Lagoon (Florida) | 258.44 mi (415.93 km) |
| Gretna to Upper Montclair (New Jersey) | 1,166.30 mi (1,876.97 km) |
| Gretna to Urbana (Illinois) | 712.51 mi (1,146.68 km) |
| Gretna to Urbana (Maryland) | 970.59 mi (1,562.01 km) |
| Gretna to Urbana (Ohio) | 789.08 mi (1,269.91 km) |
| Gretna to Urbandale (Iowa) | 836.69 mi (1,346.52 km) |
| Gretna to Utica (New York) | 1,224.23 mi (1,970.20 km) |
| Gretna to Uvalde (Texas) | 586.35 mi (943.64 km) |
| Gretna to Vacaville (California) | 1,905.34 mi (3,066.35 km) |
| Gretna to Vadnais Heights (Minnesota) | 1,059.38 mi (1,704.91 km) |
| Gretna to Vail (Arizona) | 1,229.74 mi (1,979.07 km) |
| Gretna to Valdosta (Georgia) | 408.82 mi (657.93 km) |
