| Cities | Distance |
|---|---|
| Sinnai to Smolyan | 828.78 mi (1,333.79 km) |
| Sinnai to Sofia | 772.03 mi (1,242.46 km) |
| Sinnai to Sopot | 841.93 mi (1,354.96 km) |
| Sinnai to Sozopol | 988.10 mi (1,590.19 km) |
| Sinnai to Sredets | 962.22 mi (1,548.55 km) |
| Sinnai to Stamboliyski | 825.04 mi (1,327.78 km) |
| Sinnai to Stara Zagora | 884.58 mi (1,423.60 km) |
| Sinnai to Svilengrad | 907.05 mi (1,459.76 km) |
| Sinnai to Svishtov | 885.86 mi (1,425.66 km) |
| Sinnai to Targovishte | 940.78 mi (1,514.05 km) |
| Sinnai to Teteven | 821.65 mi (1,322.31 km) |
| Sinnai to Troyan | 843.42 mi (1,357.35 km) |
| Sinnai to Tryavna | 882.10 mi (1,419.60 km) |
| Sinnai to Tutrakan | 954.39 mi (1,535.94 km) |
| Sinnai to Varna | 1,006.47 mi (1,619.76 km) |