| Johnstown to Nasaud | 4,776.39 mi (7,686.85 km) |
| Johnstown to Navodari | 5,062.60 mi (8,147.47 km) |
| Johnstown to Negresti-Oas | 4,715.44 mi (7,588.77 km) |
| Johnstown to Nehoiu | 4,930.09 mi (7,934.22 km) |
| Johnstown to Ocna Mures | 4,793.37 mi (7,714.19 km) |
| Johnstown to Odobesti | 4,940.56 mi (7,951.07 km) |
| Johnstown to Odorheiu Secuiesc | 4,850.91 mi (7,806.78 km) |
| Johnstown to Oltenita | 4,998.14 mi (8,043.73 km) |
| Johnstown to Onesti | 4,908.00 mi (7,898.67 km) |
| Johnstown to Oradea | 4,691.60 mi (7,550.40 km) |
| Johnstown to Orastie | 4,790.84 mi (7,710.11 km) |
| Johnstown to Oravita | 4,765.70 mi (7,669.65 km) |
| Johnstown to Orsova | 4,806.60 mi (7,735.47 km) |
| Johnstown to Otelu Rosu | 4,771.96 mi (7,679.73 km) |
| Johnstown to Otopeni | 4,956.18 mi (7,976.20 km) |
