| Cities | Distance |
|---|---|
| Gliwice to Smolyan | 666.84 mi (1,073.17 km) |
| Gliwice to Sofia | 568.69 mi (915.22 km) |
| Gliwice to Sopot | 601.16 mi (967.48 km) |
| Gliwice to Sozopol | 692.51 mi (1,114.49 km) |
| Gliwice to Sredets | 681.90 mi (1,097.41 km) |
| Gliwice to Stamboliyski | 628.63 mi (1,011.69 km) |
| Gliwice to Stara Zagora | 635.80 mi (1,023.23 km) |
| Gliwice to Svilengrad | 689.76 mi (1,110.05 km) |
| Gliwice to Svishtov | 557.65 mi (897.45 km) |
| Gliwice to Targovishte | 612.89 mi (986.35 km) |
| Gliwice to Teteven | 573.83 mi (923.50 km) |
| Gliwice to Troyan | 586.02 mi (943.11 km) |
| Gliwice to Tryavna | 605.97 mi (975.22 km) |
| Gliwice to Tutrakan | 569.39 mi (916.35 km) |
| Gliwice to Varna | 654.88 mi (1,053.93 km) |