| Herndon to Oschatz | 4,206.43 mi (6,769.59 km) |
| Herndon to Oschersleben | 4,113.13 mi (6,619.44 km) |
| Herndon to Osnabruck | 3,982.06 mi (6,408.51 km) |
| Herndon to Ostbevern | 3,980.84 mi (6,406.54 km) |
| Herndon to Osterburg | 4,109.92 mi (6,614.28 km) |
| Herndon to Ostercappeln | 3,987.33 mi (6,416.98 km) |
| Herndon to Osterhofen | 4,286.57 mi (6,898.57 km) |
| Herndon to Osterholz-Scharmbeck | 3,985.24 mi (6,413.62 km) |
| Herndon to Osternienburg | 4,149.07 mi (6,677.28 km) |
| Herndon to Osterode | 4,083.20 mi (6,571.27 km) |
| Herndon to Osterwieck | 4,094.12 mi (6,588.86 km) |
| Herndon to Ostfildern | 4,132.77 mi (6,651.05 km) |
| Herndon to Osthofen | 4,066.20 mi (6,543.91 km) |
| Herndon to Ostrhauderfehn | 3,942.83 mi (6,345.37 km) |
| Herndon to Ostringen | 4,096.12 mi (6,592.07 km) |
