| Herndon to Stephenville (Texas) | 1,256.52 mi (2,022.18 km) |
| Herndon to Sterling (Colorado) | 1,369.76 mi (2,204.42 km) |
| Herndon to Sterling (Illinois) | 675.97 mi (1,087.86 km) |
| Herndon to Sterling (Virginia) | 2.63 mi (4.23 km) |
| Herndon to Sterling Heights (Michigan) | 386.43 mi (621.89 km) |
| Herndon to Steubenville (Ohio) | 198.61 mi (319.63 km) |
| Herndon to Stevens Point (Wisconsin) | 734.01 mi (1,181.27 km) |
| Herndon to Stevenson Ranch (California) | 2,285.33 mi (3,677.89 km) |
| Herndon to Stillwater (Minnesota) | 895.42 mi (1,441.04 km) |
| Herndon to Stillwater (Oklahoma) | 1,093.87 mi (1,760.42 km) |
| Herndon to Stockbridge (Georgia) | 535.30 mi (861.48 km) |
| Herndon to Stockton (California) | 2,353.62 mi (3,787.79 km) |
| Herndon to Stone Ridge (Virginia) | 9.50 mi (15.29 km) |
| Herndon to Stonecrest (Georgia) | 523.69 mi (842.80 km) |
| Herndon to Stony Brook (New York) | 262.25 mi (422.06 km) |
