| Biscarrosse to Smolyan | 1,315.91 mi (2,117.75 km) |
| Biscarrosse to Sofia | 1,227.60 mi (1,975.63 km) |
| Biscarrosse to Sopot | 1,298.42 mi (2,089.60 km) |
| Biscarrosse to Sozopol | 1,447.76 mi (2,329.95 km) |
| Biscarrosse to Sredets | 1,424.37 mi (2,292.30 km) |
| Biscarrosse to Stamboliyski | 1,296.93 mi (2,087.21 km) |
| Biscarrosse to Stara Zagora | 1,346.53 mi (2,167.02 km) |
| Biscarrosse to Svilengrad | 1,386.24 mi (2,230.94 km) |
| Biscarrosse to Svishtov | 1,313.00 mi (2,113.07 km) |
| Biscarrosse to Targovishte | 1,378.85 mi (2,219.04 km) |
| Biscarrosse to Teteven | 1,270.22 mi (2,044.22 km) |
| Biscarrosse to Troyan | 1,292.91 mi (2,080.74 km) |
| Biscarrosse to Tryavna | 1,331.72 mi (2,143.20 km) |
| Biscarrosse to Tutrakan | 1,369.15 mi (2,203.43 km) |
| Biscarrosse to Varna | 1,444.74 mi (2,325.09 km) |
