| Gretna to Red Bank (New Jersey) | 1,152.65 mi (1,855.00 km) |
| Gretna to Red Bank (Tennessee) | 453.66 mi (730.09 km) |
| Gretna to Red Bluff (California) | 1,940.97 mi (3,123.70 km) |
| Gretna to Red Hill (South Carolina) | 700.44 mi (1,127.25 km) |
| Gretna to Red Oak (Texas) | 436.84 mi (703.02 km) |
| Gretna to Red Wing (Minnesota) | 1,023.24 mi (1,646.74 km) |
| Gretna to Redan (Georgia) | 435.11 mi (700.25 km) |
| Gretna to Redding (California) | 1,952.86 mi (3,142.82 km) |
| Gretna to Redland (Maryland) | 970.72 mi (1,562.22 km) |
| Gretna to Redlands (California) | 1,610.04 mi (2,591.12 km) |
| Gretna to Redmond (Oregon) | 1,964.29 mi (3,161.22 km) |
| Gretna to Redmond (Washington) | 2,094.50 mi (3,370.78 km) |
| Gretna to Redondo Beach (California) | 1,678.58 mi (2,701.41 km) |
| Gretna to Redwood City (California) | 1,911.84 mi (3,076.81 km) |
| Gretna to Reedley (California) | 1,752.55 mi (2,820.45 km) |
