| Gretna to Glen Burnie (Maryland) | 994.86 mi (1,601.08 km) |
| Gretna to Glen Carbon (Illinois) | 611.34 mi (983.86 km) |
| Gretna to Glen Cove (New York) | 1,191.92 mi (1,918.21 km) |
| Gretna to Glen Ellyn (Illinois) | 833.51 mi (1,341.41 km) |
| Gretna to Glen Rock (New Jersey) | 1,174.19 mi (1,889.68 km) |
| Gretna to Glendale (Arizona) | 1,324.93 mi (2,132.27 km) |
| Gretna to Glendale (California) | 1,671.91 mi (2,690.68 km) |
| Gretna to Glendale (Wisconsin) | 920.81 mi (1,481.90 km) |
| Gretna to Glendale Heights (Illinois) | 837.02 mi (1,347.05 km) |
| Gretna to Glendora (California) | 1,648.95 mi (2,653.73 km) |
| Gretna to Glenmont (Maryland) | 972.34 mi (1,564.82 km) |
| Gretna to Glenn Dale (Maryland) | 979.31 mi (1,576.05 km) |
| Gretna to Glenn Heights (Texas) | 441.29 mi (710.18 km) |
| Gretna to Glenpool (Oklahoma) | 541.31 mi (871.15 km) |
| Gretna to Glens Falls (New York) | 1,293.49 mi (2,081.67 km) |
