| Troon to Nasaud | 1,363.24 mi (2,193.93 km) |
| Troon to Navodari | 1,648.66 mi (2,653.26 km) |
| Troon to Negresti-Oas | 1,302.51 mi (2,096.18 km) |
| Troon to Nehoiu | 1,516.00 mi (2,439.77 km) |
| Troon to Ocna Mures | 1,379.29 mi (2,219.75 km) |
| Troon to Odobesti | 1,527.23 mi (2,457.83 km) |
| Troon to Odorheiu Secuiesc | 1,437.05 mi (2,312.71 km) |
| Troon to Oltenita | 1,584.66 mi (2,550.27 km) |
| Troon to Onesti | 1,495.27 mi (2,406.41 km) |
| Troon to Oradea | 1,277.70 mi (2,056.27 km) |
| Troon to Orastie | 1,377.71 mi (2,217.22 km) |
| Troon to Oravita | 1,358.10 mi (2,185.65 km) |
| Troon to Orsova | 1,398.55 mi (2,250.74 km) |
| Troon to Otelu Rosu | 1,360.90 mi (2,190.16 km) |
| Troon to Otopeni | 1,542.55 mi (2,482.49 km) |
