| Herndon to South Fulton (Georgia) | 544.36 mi (876.07 km) |
| Herndon to South Gate (California) | 2,274.91 mi (3,661.12 km) |
| Herndon to South Hill (Washington) | 2,302.25 mi (3,705.11 km) |
| Herndon to South Holland (Illinois) | 567.80 mi (913.79 km) |
| Herndon to South Houston (Texas) | 1,200.92 mi (1,932.70 km) |
| Herndon to South Huntington (New York) | 247.39 mi (398.14 km) |
| Herndon to South Jordan (Utah) | 1,828.68 mi (2,942.98 km) |
| Herndon to South Lake Tahoe (California) | 2,267.20 mi (3,648.71 km) |
| Herndon to South Laurel (Maryland) | 29.71 mi (47.82 km) |
| Herndon to South Lyon (Michigan) | 407.09 mi (655.15 km) |
| Herndon to South Miami (Florida) | 931.76 mi (1,499.52 km) |
| Herndon to South Miami Heights (Florida) | 940.85 mi (1,514.15 km) |
| Herndon to South Milwaukee (Wisconsin) | 610.24 mi (982.09 km) |
| Herndon to South Ogden (Utah) | 1,822.18 mi (2,932.51 km) |
| Herndon to South Pasadena (California) | 2,268.98 mi (3,651.57 km) |
