| Avion to Navodari | 1,270.04 mi (2,043.93 km) |
| Avion to Negresti-Oas | 943.98 mi (1,519.18 km) |
| Avion to Nehoiu | 1,136.82 mi (1,829.54 km) |
| Avion to Ocna Mures | 999.93 mi (1,609.23 km) |
| Avion to Odobesti | 1,157.71 mi (1,863.16 km) |
| Avion to Odorheiu Secuiesc | 1,065.00 mi (1,713.96 km) |
| Avion to Oltenita | 1,192.44 mi (1,919.05 km) |
| Avion to Onesti | 1,130.79 mi (1,819.82 km) |
| Avion to Oradea | 897.01 mi (1,443.60 km) |
| Avion to Orastie | 986.96 mi (1,588.35 km) |
| Avion to Oravita | 948.16 mi (1,525.92 km) |
| Avion to Orsova | 989.18 mi (1,591.94 km) |
| Avion to Otelu Rosu | 960.77 mi (1,546.21 km) |
| Avion to Otopeni | 1,152.33 mi (1,854.50 km) |
| Avion to Ovidiu | 1,269.41 mi (2,042.92 km) |
