| Glasgow to Smolyan | 1,627.68 mi (2,619.51 km) |
| Glasgow to Sofia | 1,523.40 mi (2,451.68 km) |
| Glasgow to Sopot | 1,576.16 mi (2,536.58 km) |
| Glasgow to Sozopol | 1,694.02 mi (2,726.26 km) |
| Glasgow to Sredets | 1,679.04 mi (2,702.15 km) |
| Glasgow to Stamboliyski | 1,594.11 mi (2,565.48 km) |
| Glasgow to Stara Zagora | 1,619.00 mi (2,605.54 km) |
| Glasgow to Svilengrad | 1,671.65 mi (2,690.27 km) |
| Glasgow to Svishtov | 1,550.99 mi (2,496.07 km) |
| Glasgow to Targovishte | 1,613.33 mi (2,596.40 km) |
| Glasgow to Teteven | 1,545.82 mi (2,487.76 km) |
| Glasgow to Troyan | 1,563.52 mi (2,516.25 km) |
| Glasgow to Tryavna | 1,592.44 mi (2,562.78 km) |
| Glasgow to Tutrakan | 1,577.01 mi (2,537.96 km) |
| Glasgow to Varna | 1,663.84 mi (2,677.69 km) |
