| Cities | Distance |
|---|---|
| Senec to Orbetello | 499.43 mi (803.75 km) |
| Senec to Oria | 533.45 mi (858.50 km) |
| Senec to Oristano | 720.90 mi (1,160.17 km) |
| Senec to Orta Nova | 483.04 mi (777.37 km) |
| Senec to Orte | 466.23 mi (750.33 km) |
| Senec to Ortona | 430.83 mi (693.36 km) |
| Senec to Orvieto | 458.15 mi (737.32 km) |
| Senec to Orzinuovi | 402.98 mi (648.54 km) |
| Senec to Osimo | 377.48 mi (607.49 km) |
| Senec to Ospitaletto | 391.63 mi (630.27 km) |
| Senec to Ostuni | 517.28 mi (832.49 km) |
| Senec to Ottaviano | 528.99 mi (851.32 km) |
| Senec to Ovada | 484.27 mi (779.36 km) |
| Senec to Ozieri | 669.98 mi (1,078.22 km) |
| Senec to Paceco | 747.94 mi (1,203.69 km) |