| Balch Springs to Smolyan | 6,092.99 mi (9,805.72 km) |
| Balch Springs to Sofia | 5,988.96 mi (9,638.31 km) |
| Balch Springs to Sopot | 6,043.62 mi (9,726.26 km) |
| Balch Springs to Sozopol | 6,161.22 mi (9,915.53 km) |
| Balch Springs to Sredets | 6,146.74 mi (9,892.22 km) |
| Balch Springs to Stamboliyski | 6,060.44 mi (9,753.33 km) |
| Balch Springs to Stara Zagora | 6,086.86 mi (9,795.85 km) |
| Balch Springs to Svilengrad | 6,139.32 mi (9,880.28 km) |
| Balch Springs to Svishtov | 6,018.74 mi (9,686.22 km) |
| Balch Springs to Targovishte | 6,080.50 mi (9,785.62 km) |
| Balch Springs to Teteven | 6,013.18 mi (9,677.28 km) |
| Balch Springs to Troyan | 6,031.20 mi (9,706.29 km) |
| Balch Springs to Tryavna | 6,060.40 mi (9,753.28 km) |
| Balch Springs to Tutrakan | 6,042.44 mi (9,724.37 km) |
| Balch Springs to Varna | 6,129.05 mi (9,863.76 km) |
