| Ashburn to Nasaud | 4,785.19 mi (7,701.02 km) |
| Ashburn to Navodari | 5,070.28 mi (8,159.82 km) |
| Ashburn to Negresti-Oas | 4,724.42 mi (7,603.22 km) |
| Ashburn to Nehoiu | 4,937.28 mi (7,945.78 km) |
| Ashburn to Ocna Mures | 4,800.11 mi (7,725.02 km) |
| Ashburn to Odobesti | 4,949.17 mi (7,964.92 km) |
| Ashburn to Odorheiu Secuiesc | 4,858.82 mi (7,819.51 km) |
| Ashburn to Oltenita | 5,003.49 mi (8,052.34 km) |
| Ashburn to Onesti | 4,917.17 mi (7,913.42 km) |
| Ashburn to Oradea | 4,697.84 mi (7,560.44 km) |
| Ashburn to Orastie | 4,796.01 mi (7,718.44 km) |
| Ashburn to Oravita | 4,768.06 mi (7,673.44 km) |
| Ashburn to Orsova | 4,809.04 mi (7,739.41 km) |
| Ashburn to Otelu Rosu | 4,775.78 mi (7,685.87 km) |
| Ashburn to Otopeni | 4,961.77 mi (7,985.20 km) |
