| Herndon to Timberwood Park (Texas) | 1,358.77 mi (2,186.73 km) |
| Herndon to Timonium (Maryland) | 53.30 mi (85.78 km) |
| Herndon to Tinley Park (Illinois) | 577.37 mi (929.19 km) |
| Herndon to Tinton Falls (New Jersey) | 196.89 mi (316.86 km) |
| Herndon to Tipp City (Ohio) | 369.06 mi (593.94 km) |
| Herndon to Titusville (Florida) | 744.77 mi (1,198.59 km) |
| Herndon to Toledo (Ohio) | 375.62 mi (604.50 km) |
| Herndon to Tomball (Texas) | 1,202.02 mi (1,934.47 km) |
| Herndon to Tonawanda (New York) | 289.83 mi (466.44 km) |
| Herndon to Tooele (Utah) | 1,846.00 mi (2,970.84 km) |
| Herndon to Topeka (Kansas) | 981.41 mi (1,579.43 km) |
| Herndon to Torrance (California) | 2,285.61 mi (3,678.34 km) |
| Herndon to Torrington (Connecticut) | 298.91 mi (481.05 km) |
| Herndon to Totowa (New Jersey) | 214.39 mi (345.03 km) |
| Herndon to Town 'n' Country (Florida) | 813.72 mi (1,309.56 km) |
