| Folsom to Smolyan | 6,490.18 mi (10,444.94 km) |
| Folsom to Sofia | 6,389.80 mi (10,283.39 km) |
| Folsom to Sopot | 6,425.08 mi (10,340.17 km) |
| Folsom to Sozopol | 6,503.05 mi (10,465.65 km) |
| Folsom to Sredets | 6,496.85 mi (10,455.67 km) |
| Folsom to Stamboliyski | 6,452.28 mi (10,383.95 km) |
| Folsom to Stara Zagora | 6,458.43 mi (10,393.84 km) |
| Folsom to Svilengrad | 6,512.11 mi (10,480.23 km) |
| Folsom to Svishtov | 6,378.10 mi (10,264.55 km) |
| Folsom to Targovishte | 6,427.30 mi (10,343.74 km) |
| Folsom to Teteven | 6,397.74 mi (10,296.16 km) |
| Folsom to Troyan | 6,409.86 mi (10,315.67 km) |
| Folsom to Tryavna | 6,428.10 mi (10,345.03 km) |
| Folsom to Tutrakan | 6,377.76 mi (10,264.02 km) |
| Folsom to Varna | 6,456.91 mi (10,391.39 km) |
