| Troy to Nasaud | 4,817.63 mi (7,753.23 km) |
| Troy to Navodari | 5,105.34 mi (8,216.25 km) |
| Troy to Negresti-Oas | 4,756.50 mi (7,654.85 km) |
| Troy to Nehoiu | 4,974.40 mi (8,005.52 km) |
| Troy to Ocna Mures | 4,839.19 mi (7,787.93 km) |
| Troy to Odobesti | 4,981.64 mi (8,017.17 km) |
| Troy to Odorheiu Secuiesc | 4,893.88 mi (7,875.94 km) |
| Troy to Oltenita | 5,046.30 mi (8,121.24 km) |
| Troy to Onesti | 4,947.94 mi (7,962.94 km) |
| Troy to Oradea | 4,738.91 mi (7,626.54 km) |
| Troy to Orastie | 4,840.14 mi (7,789.45 km) |
| Troy to Oravita | 4,821.37 mi (7,759.24 km) |
| Troy to Orsova | 4,861.92 mi (7,824.51 km) |
| Troy to Otelu Rosu | 4,824.36 mi (7,764.05 km) |
| Troy to Otopeni | 5,003.96 mi (8,053.09 km) |
