| Cities | Distance |
|---|---|
| Senec to Nasaud | 331.74 mi (533.89 km) |
| Senec to Navodari | 598.68 mi (963.49 km) |
| Senec to Negresti-Oas | 279.26 mi (449.43 km) |
| Senec to Nehoiu | 465.14 mi (748.57 km) |
| Senec to Ocna Mures | 327.87 mi (527.65 km) |
| Senec to Odobesti | 485.65 mi (781.59 km) |
| Senec to Odorheiu Secuiesc | 392.96 mi (632.40 km) |
| Senec to Oltenita | 525.74 mi (846.09 km) |
| Senec to Onesti | 459.58 mi (739.62 km) |
| Senec to Oradea | 224.84 mi (361.85 km) |
| Senec to Orastie | 318.30 mi (512.25 km) |
| Senec to Oravita | 299.20 mi (481.52 km) |
| Senec to Orsova | 338.67 mi (545.04 km) |
| Senec to Otelu Rosu | 299.15 mi (481.43 km) |
| Senec to Otopeni | 484.36 mi (779.51 km) |