| Herndon to Oxford (Alabama) | 600.36 mi (966.19 km) |
| Herndon to Oxford (Mississippi) | 743.82 mi (1,197.07 km) |
| Herndon to Oxford (Ohio) | 395.38 mi (636.30 km) |
| Herndon to Oxnard (California) | 2,321.72 mi (3,736.45 km) |
| Herndon to Oxon Hill (Maryland) | 25.56 mi (41.13 km) |
| Herndon to Ozark (Alabama) | 697.46 mi (1,122.46 km) |
| Herndon to Ozark (Missouri) | 870.94 mi (1,401.65 km) |
| Herndon to Pace (Florida) | 799.55 mi (1,286.76 km) |
| Herndon to Pacific Grove (California) | 2,412.95 mi (3,883.27 km) |
| Herndon to Pacifica (California) | 2,421.85 mi (3,897.60 km) |
| Herndon to Paducah (Kentucky) | 626.19 mi (1,007.76 km) |
| Herndon to Pahrump (Nevada) | 2,106.43 mi (3,389.97 km) |
| Herndon to Painesville (Ohio) | 278.64 mi (448.43 km) |
| Herndon to Palatine (Illinois) | 599.77 mi (965.23 km) |
| Herndon to Palatka (Florida) | 688.60 mi (1,108.20 km) |
