| Syston to Nasaud | 1,185.04 mi (1,907.13 km) |
| Syston to Navodari | 1,463.98 mi (2,356.04 km) |
| Syston to Negresti-Oas | 1,125.82 mi (1,811.83 km) |
| Syston to Nehoiu | 1,330.30 mi (2,140.92 km) |
| Syston to Ocna Mures | 1,192.59 mi (1,919.29 km) |
| Syston to Odobesti | 1,346.66 mi (2,167.24 km) |
| Syston to Odorheiu Secuiesc | 1,254.56 mi (2,019.02 km) |
| Syston to Oltenita | 1,392.42 mi (2,240.88 km) |
| Syston to Onesti | 1,317.12 mi (2,119.70 km) |
| Syston to Oradea | 1,089.50 mi (1,753.38 km) |
| Syston to Orastie | 1,185.08 mi (1,907.21 km) |
| Syston to Oravita | 1,155.27 mi (1,859.23 km) |
| Syston to Orsova | 1,196.24 mi (1,925.16 km) |
| Syston to Otelu Rosu | 1,163.26 mi (1,872.09 km) |
| Syston to Otopeni | 1,351.16 mi (2,174.49 km) |
