| Apex to Nasaud | 5,001.95 mi (8,049.87 km) |
| Apex to Navodari | 5,285.80 mi (8,506.67 km) |
| Apex to Negresti-Oas | 4,941.40 mi (7,952.41 km) |
| Apex to Nehoiu | 5,152.47 mi (8,292.09 km) |
| Apex to Ocna Mures | 5,015.00 mi (8,070.86 km) |
| Apex to Odobesti | 5,165.63 mi (8,313.27 km) |
| Apex to Odorheiu Secuiesc | 5,074.73 mi (8,166.98 km) |
| Apex to Oltenita | 5,216.93 mi (8,395.84 km) |
| Apex to Onesti | 5,134.15 mi (8,262.62 km) |
| Apex to Oradea | 4,912.37 mi (7,905.69 km) |
| Apex to Orastie | 5,009.47 mi (8,061.97 km) |
| Apex to Oravita | 4,978.84 mi (8,012.67 km) |
| Apex to Orsova | 5,019.87 mi (8,078.71 km) |
| Apex to Otelu Rosu | 4,987.97 mi (8,027.36 km) |
| Apex to Otopeni | 5,175.47 mi (8,329.11 km) |
