| Cities | Distance |
|---|---|
| Serik to Popovo | 513.26 mi (826.01 km) |
| Serik to Provadia | 474.30 mi (763.31 km) |
| Serik to Radnevo | 462.38 mi (744.13 km) |
| Serik to Radomir | 581.75 mi (936.23 km) |
| Serik to Rakitovo | 512.20 mi (824.30 km) |
| Serik to Rakovski | 494.09 mi (795.15 km) |
| Serik to Razgrad | 516.95 mi (831.96 km) |
| Serik to Razlog | 532.39 mi (856.80 km) |
| Serik to Ruse | 548.44 mi (882.63 km) |
| Serik to Samokov | 548.63 mi (882.94 km) |
| Serik to Sandanski | 527.15 mi (848.37 km) |
| Serik to Sevlievo | 527.55 mi (849.01 km) |
| Serik to Shumen | 491.76 mi (791.42 km) |
| Serik to Silistra | 536.66 mi (863.67 km) |
| Serik to Sliven | 471.80 mi (759.28 km) |