| Cities | Distance |
|---|
| Sliven to Oria | 473.93 mi (762.72 km) |
| Sliven to Oristano | 938.91 mi (1,511.03 km) |
| Sliven to Orta Nova | 552.90 mi (889.80 km) |
| Sliven to Orte | 709.03 mi (1,141.07 km) |
| Sliven to Ortona | 607.66 mi (977.94 km) |
| Sliven to Orvieto | 721.35 mi (1,160.90 km) |
| Sliven to Orzinuovi | 834.28 mi (1,342.65 km) |
| Sliven to Osimo | 650.15 mi (1,046.32 km) |
| Sliven to Ospitaletto | 828.98 mi (1,334.12 km) |
| Sliven to Ostuni | 470.76 mi (757.61 km) |
| Sliven to Ottaviano | 623.41 mi (1,003.28 km) |
| Sliven to Ovada | 892.52 mi (1,436.37 km) |
| Sliven to Ozieri | 904.94 mi (1,456.36 km) |
| Sliven to Paceco | 794.02 mi (1,277.85 km) |
| Sliven to Pachino | 724.64 mi (1,166.20 km) |
