| Castelginest to Navodari | 1,345.24 mi (2,164.96 km) |
| Castelginest to Negresti-Oas | 1,094.05 mi (1,760.71 km) |
| Castelginest to Nehoiu | 1,225.67 mi (1,972.52 km) |
| Castelginest to Ocna Mures | 1,106.77 mi (1,781.18 km) |
| Castelginest to Odobesti | 1,260.91 mi (2,029.24 km) |
| Castelginest to Odorheiu Secuiesc | 1,175.44 mi (1,891.69 km) |
| Castelginest to Oltenita | 1,250.37 mi (2,012.27 km) |
| Castelginest to Onesti | 1,245.53 mi (2,004.49 km) |
| Castelginest to Oradea | 1,018.11 mi (1,638.49 km) |
| Castelginest to Orastie | 1,074.62 mi (1,729.43 km) |
| Castelginest to Oravita | 1,002.01 mi (1,612.59 km) |
| Castelginest to Orsova | 1,037.79 mi (1,670.16 km) |
| Castelginest to Otelu Rosu | 1,033.79 mi (1,663.72 km) |
| Castelginest to Otopeni | 1,218.78 mi (1,961.44 km) |
| Castelginest to Ovidiu | 1,343.11 mi (2,161.53 km) |
