| Gretna to Yonkers (New York) | 1,184.64 mi (1,906.49 km) |
| Gretna to Yorba Linda (California) | 1,643.95 mi (2,645.68 km) |
| Gretna to York (Pennsylvania) | 1,023.43 mi (1,647.05 km) |
| Gretna to Yorktown (Indiana) | 754.50 mi (1,214.26 km) |
| Gretna to Yorkville (Illinois) | 816.48 mi (1,314.00 km) |
| Gretna to Youngstown (Ohio) | 935.45 mi (1,505.46 km) |
| Gretna to Youngsville (Louisiana) | 117.10 mi (188.46 km) |
| Gretna to Ypsilanti (Michigan) | 924.04 mi (1,487.09 km) |
| Gretna to Yuba City (California) | 1,896.25 mi (3,051.72 km) |
| Gretna to Yucaipa (California) | 1,602.65 mi (2,579.21 km) |
| Gretna to Yucca Valley (California) | 1,567.48 mi (2,522.61 km) |
| Gretna to Yukon (Oklahoma) | 592.29 mi (953.20 km) |
| Gretna to Yulee (Florida) | 508.58 mi (818.49 km) |
| Gretna to Yuma (Arizona) | 1,455.59 mi (2,342.55 km) |
| Gretna to Zachary (Louisiana) | 84.36 mi (135.76 km) |
