| DeForest to Smolyan | 5,289.28 mi (8,512.27 km) |
| DeForest to Sofia | 5,185.01 mi (8,344.46 km) |
| DeForest to Sopot | 5,237.35 mi (8,428.70 km) |
| DeForest to Sozopol | 5,350.70 mi (8,611.11 km) |
| DeForest to Sredets | 5,337.12 mi (8,589.27 km) |
| DeForest to Stamboliyski | 5,255.73 mi (8,458.28 km) |
| DeForest to Stara Zagora | 5,279.57 mi (8,496.65 km) |
| DeForest to Svilengrad | 5,332.56 mi (8,581.92 km) |
| DeForest to Svishtov | 5,209.42 mi (8,383.75 km) |
| DeForest to Targovishte | 5,270.05 mi (8,481.32 km) |
| DeForest to Teteven | 5,207.11 mi (8,380.04 km) |
| DeForest to Troyan | 5,224.47 mi (8,407.97 km) |
| DeForest to Tryavna | 5,252.43 mi (8,452.97 km) |
| DeForest to Tutrakan | 5,230.41 mi (8,417.53 km) |
| DeForest to Varna | 5,316.71 mi (8,556.42 km) |
