| Brownwood to Smolyan | 6,234.05 mi (10,032.73 km) |
| Brownwood to Sofia | 6,129.92 mi (9,865.15 km) |
| Brownwood to Sopot | 6,183.80 mi (9,951.86 km) |
| Brownwood to Sozopol | 6,299.78 mi (10,138.52 km) |
| Brownwood to Sredets | 6,285.67 mi (10,115.81 km) |
| Brownwood to Stamboliyski | 6,201.16 mi (9,979.80 km) |
| Brownwood to Stara Zagora | 6,226.68 mi (10,020.87 km) |
| Brownwood to Svilengrad | 6,279.34 mi (10,105.63 km) |
| Brownwood to Svishtov | 6,157.76 mi (9,909.96 km) |
| Brownwood to Targovishte | 6,219.07 mi (10,008.63 km) |
| Brownwood to Teteven | 6,153.42 mi (9,902.97 km) |
| Brownwood to Troyan | 6,171.21 mi (9,931.60 km) |
| Brownwood to Tryavna | 6,199.96 mi (9,977.87 km) |
| Brownwood to Tutrakan | 6,180.32 mi (9,946.26 km) |
| Brownwood to Varna | 6,266.81 mi (10,085.45 km) |
