| Herndon to Glen Burnie (Maryland) | 43.76 mi (70.42 km) |
| Herndon to Glen Carbon (Illinois) | 677.24 mi (1,089.91 km) |
| Herndon to Glen Cove (New York) | 238.52 mi (383.86 km) |
| Herndon to Glen Ellyn (Illinois) | 595.70 mi (958.68 km) |
| Herndon to Glen Rock (New Jersey) | 220.75 mi (355.26 km) |
| Herndon to Glendale (Arizona) | 1,963.96 mi (3,160.69 km) |
| Herndon to Glendale (California) | 2,272.04 mi (3,656.49 km) |
| Herndon to Glendale (Wisconsin) | 619.23 mi (996.55 km) |
| Herndon to Glendale Heights (Illinois) | 597.49 mi (961.57 km) |
| Herndon to Glendora (California) | 2,251.51 mi (3,623.45 km) |
| Herndon to Glenmont (Maryland) | 19.51 mi (31.40 km) |
| Herndon to Glenn Dale (Maryland) | 31.31 mi (50.39 km) |
| Herndon to Glenn Heights (Texas) | 1,175.16 mi (1,891.24 km) |
| Herndon to Glenpool (Oklahoma) | 1,040.29 mi (1,674.19 km) |
| Herndon to Glens Falls (New York) | 357.47 mi (575.29 km) |
