| Gretna to Tulare (California) | 1,743.59 mi (2,806.04 km) |
| Gretna to Tullahoma (Tennessee) | 438.29 mi (705.36 km) |
| Gretna to Tulsa (Oklahoma) | 547.06 mi (880.40 km) |
| Gretna to Tumwater (Washington) | 2,110.21 mi (3,396.06 km) |
| Gretna to Tupelo (Mississippi) | 310.92 mi (500.38 km) |
| Gretna to Turlock (California) | 1,837.50 mi (2,957.17 km) |
| Gretna to Tuscaloosa (Alabama) | 273.57 mi (440.27 km) |
| Gretna to Tustin (California) | 1,645.86 mi (2,648.76 km) |
| Gretna to Twentynine Palms (California) | 1,547.28 mi (2,490.11 km) |
| Gretna to Twin Falls (Idaho) | 1,607.91 mi (2,587.68 km) |
| Gretna to Twin Rivers (New Jersey) | 1,130.83 mi (1,819.90 km) |
| Gretna to Twinsburg (Ohio) | 923.73 mi (1,486.60 km) |
| Gretna to Two Rivers (Wisconsin) | 993.58 mi (1,599.01 km) |
| Gretna to Tyler (Texas) | 352.50 mi (567.30 km) |
| Gretna to Tysons (Virginia) | 958.44 mi (1,542.46 km) |
