| Bischwiller to Smolyan | 955.68 mi (1,538.02 km) |
| Bischwiller to Sofia | 853.60 mi (1,373.74 km) |
| Bischwiller to Sopot | 915.34 mi (1,473.09 km) |
| Bischwiller to Sozopol | 1,050.87 mi (1,691.21 km) |
| Bischwiller to Sredets | 1,031.60 mi (1,660.20 km) |
| Bischwiller to Stamboliyski | 926.33 mi (1,490.79 km) |
| Bischwiller to Stara Zagora | 961.87 mi (1,547.98 km) |
| Bischwiller to Svilengrad | 1,010.99 mi (1,627.03 km) |
| Bischwiller to Svishtov | 906.54 mi (1,458.93 km) |
| Bischwiller to Targovishte | 972.88 mi (1,565.71 km) |
| Bischwiller to Teteven | 884.74 mi (1,423.86 km) |
| Bischwiller to Troyan | 905.16 mi (1,456.72 km) |
| Bischwiller to Tryavna | 939.35 mi (1,511.73 km) |
| Bischwiller to Tutrakan | 948.29 mi (1,526.13 km) |
| Bischwiller to Varna | 1,032.63 mi (1,661.85 km) |
