| Halifax to Nasaud | 1,228.51 mi (1,977.10 km) |
| Halifax to Navodari | 1,510.57 mi (2,431.03 km) |
| Halifax to Negresti-Oas | 1,168.54 mi (1,880.58 km) |
| Halifax to Nehoiu | 1,377.12 mi (2,216.27 km) |
| Halifax to Ocna Mures | 1,239.59 mi (1,994.92 km) |
| Halifax to Odobesti | 1,391.40 mi (2,239.25 km) |
| Halifax to Odorheiu Secuiesc | 1,299.93 mi (2,092.04 km) |
| Halifax to Oltenita | 1,442.05 mi (2,320.75 km) |
| Halifax to Onesti | 1,360.83 mi (2,190.05 km) |
| Halifax to Oradea | 1,136.92 mi (1,829.70 km) |
| Halifax to Orastie | 1,234.56 mi (1,986.84 km) |
| Halifax to Oravita | 1,209.11 mi (1,945.88 km) |
| Halifax to Orsova | 1,249.91 mi (2,011.53 km) |
| Halifax to Otelu Rosu | 1,214.85 mi (1,955.11 km) |
| Halifax to Otopeni | 1,400.38 mi (2,253.69 km) |
