| Cities | Distance |
|---|---|
| Sliven to Nowy Sacz | 549.84 mi (884.89 km) |
| Sliven to Nowy Targ | 557.52 mi (897.25 km) |
| Sliven to Nowy Tomysl | 816.67 mi (1,314.30 km) |
| Sliven to Nysa | 686.16 mi (1,104.26 km) |
| Sliven to Oborniki | 817.17 mi (1,315.11 km) |
| Sliven to Oborniki Slaskie | 741.64 mi (1,193.55 km) |
| Sliven to Olawa | 711.21 mi (1,144.58 km) |
| Sliven to Olecko | 803.41 mi (1,292.96 km) |
| Sliven to Olesnica | 723.10 mi (1,163.71 km) |
| Sliven to Olesno | 677.85 mi (1,090.90 km) |
| Sliven to Olkusz | 615.27 mi (990.19 km) |
| Sliven to Olsztyn | 811.84 mi (1,306.53 km) |
| Sliven to Opalenica | 808.73 mi (1,301.53 km) |
| Sliven to Opoczno | 664.21 mi (1,068.95 km) |
| Sliven to Opole | 679.39 mi (1,093.37 km) |