| Altoona to Nasaud | 4,748.18 mi (7,641.45 km) |
| Altoona to Navodari | 5,034.30 mi (8,101.93 km) |
| Altoona to Negresti-Oas | 4,687.24 mi (7,543.39 km) |
| Altoona to Nehoiu | 4,901.75 mi (7,888.60 km) |
| Altoona to Ocna Mures | 4,764.99 mi (7,668.50 km) |
| Altoona to Odobesti | 4,912.34 mi (7,905.65 km) |
| Altoona to Odorheiu Secuiesc | 4,822.62 mi (7,761.26 km) |
| Altoona to Oltenita | 4,969.65 mi (7,997.87 km) |
| Altoona to Onesti | 4,879.83 mi (7,853.33 km) |
| Altoona to Oradea | 4,663.17 mi (7,504.64 km) |
| Altoona to Orastie | 4,762.32 mi (7,664.21 km) |
| Altoona to Oravita | 4,736.97 mi (7,623.41 km) |
| Altoona to Orsova | 4,777.87 mi (7,689.24 km) |
| Altoona to Otelu Rosu | 4,743.34 mi (7,633.66 km) |
| Altoona to Otopeni | 4,927.70 mi (7,930.37 km) |
