| Glenpool to Smolyan | 5,899.61 mi (9,494.50 km) |
| Glenpool to Sofia | 5,795.40 mi (9,326.80 km) |
| Glenpool to Sopot | 5,848.65 mi (9,412.50 km) |
| Glenpool to Sozopol | 5,963.53 mi (9,597.38 km) |
| Glenpool to Sredets | 5,949.65 mi (9,575.04 km) |
| Glenpool to Stamboliyski | 5,866.44 mi (9,441.12 km) |
| Glenpool to Stara Zagora | 5,891.27 mi (9,481.08 km) |
| Glenpool to Svilengrad | 5,944.07 mi (9,566.06 km) |
| Glenpool to Svishtov | 5,821.82 mi (9,369.32 km) |
| Glenpool to Targovishte | 5,882.85 mi (9,467.53 km) |
| Glenpool to Teteven | 5,818.33 mi (9,363.70 km) |
| Glenpool to Troyan | 5,835.95 mi (9,392.05 km) |
| Glenpool to Tryavna | 5,864.37 mi (9,437.79 km) |
| Glenpool to Tutrakan | 5,843.71 mi (9,404.54 km) |
| Glenpool to Varna | 5,930.12 mi (9,543.60 km) |
