| Herndon to Tulare (California) | 2,284.78 mi (3,677.00 km) |
| Herndon to Tullahoma (Tennessee) | 545.69 mi (878.20 km) |
| Herndon to Tulsa (Oklahoma) | 1,031.30 mi (1,659.72 km) |
| Herndon to Tumwater (Washington) | 2,332.42 mi (3,753.67 km) |
| Herndon to Tupelo (Mississippi) | 707.29 mi (1,138.27 km) |
| Herndon to Turlock (California) | 2,338.80 mi (3,763.94 km) |
| Herndon to Tuscaloosa (Alabama) | 690.27 mi (1,110.88 km) |
| Herndon to Tustin (California) | 2,259.72 mi (3,636.67 km) |
| Herndon to Twentynine Palms (California) | 2,155.99 mi (3,469.73 km) |
| Herndon to Twin Falls (Idaho) | 1,940.26 mi (3,122.54 km) |
| Herndon to Twin Rivers (New Jersey) | 178.10 mi (286.63 km) |
| Herndon to Twinsburg (Ohio) | 268.94 mi (432.81 km) |
| Herndon to Two Rivers (Wisconsin) | 636.62 mi (1,024.54 km) |
| Herndon to Tyler (Texas) | 1,103.56 mi (1,776.01 km) |
| Herndon to Tysons (Virginia) | 9.20 mi (14.80 km) |
