| Cities | Distance |
|---|---|
| Opatija to Popovo | 604.77 mi (973.29 km) |
| Opatija to Provadia | 665.84 mi (1,071.56 km) |
| Opatija to Radnevo | 615.99 mi (991.34 km) |
| Opatija to Radomir | 471.03 mi (758.05 km) |
| Opatija to Rakitovo | 540.56 mi (869.94 km) |
| Opatija to Rakovski | 571.32 mi (919.45 km) |
| Opatija to Razgrad | 614.79 mi (989.41 km) |
| Opatija to Razlog | 516.41 mi (831.09 km) |
| Opatija to Ruse | 582.41 mi (937.30 km) |
| Opatija to Samokov | 505.21 mi (813.05 km) |
| Opatija to Sandanski | 519.81 mi (836.56 km) |
| Opatija to Sevlievo | 558.53 mi (898.86 km) |
| Opatija to Shumen | 639.75 mi (1,029.58 km) |
| Opatija to Silistra | 641.05 mi (1,031.67 km) |
| Opatija to Sliven | 624.69 mi (1,005.34 km) |