| Smyrna to Smolyan | 5,560.62 mi (8,948.96 km) |
| Smyrna to Sofia | 5,458.19 mi (8,784.10 km) |
| Smyrna to Sopot | 5,518.02 mi (8,880.39 km) |
| Smyrna to Sozopol | 5,646.12 mi (9,086.55 km) |
| Smyrna to Sredets | 5,629.15 mi (9,059.24 km) |
| Smyrna to Stamboliyski | 5,530.79 mi (8,900.95 km) |
| Smyrna to Stara Zagora | 5,563.48 mi (8,953.56 km) |
| Smyrna to Svilengrad | 5,614.05 mi (9,034.95 km) |
| Smyrna to Svishtov | 5,501.57 mi (8,853.92 km) |
| Smyrna to Targovishte | 5,565.97 mi (8,957.57 km) |
| Smyrna to Teteven | 5,487.36 mi (8,831.05 km) |
| Smyrna to Troyan | 5,506.93 mi (8,862.55 km) |
| Smyrna to Tryavna | 5,539.12 mi (8,914.36 km) |
| Smyrna to Tutrakan | 5,533.10 mi (8,904.67 km) |
| Smyrna to Varna | 5,619.83 mi (9,044.24 km) |
