| Aalborg to Navodari | 1,193.61 mi (1,920.93 km) |
| Aalborg to Negresti-Oas | 848.87 mi (1,366.13 km) |
| Aalborg to Nehoiu | 1,069.85 mi (1,721.75 km) |
| Aalborg to Ocna Mures | 944.25 mi (1,519.63 km) |
| Aalborg to Odobesti | 1,068.41 mi (1,719.45 km) |
| Aalborg to Odorheiu Secuiesc | 987.76 mi (1,589.64 km) |
| Aalborg to Oltenita | 1,151.45 mi (1,853.09 km) |
| Aalborg to Onesti | 1,032.73 mi (1,662.02 km) |
| Aalborg to Oradea | 854.88 mi (1,375.80 km) |
| Aalborg to Orastie | 958.70 mi (1,542.88 km) |
| Aalborg to Oravita | 971.59 mi (1,563.62 km) |
| Aalborg to Orsova | 1,006.96 mi (1,620.55 km) |
| Aalborg to Otelu Rosu | 957.81 mi (1,541.44 km) |
| Aalborg to Otopeni | 1,109.34 mi (1,785.31 km) |
| Aalborg to Ovidiu | 1,194.92 mi (1,923.05 km) |
