| Eufaula to Smolyan | 5,681.45 mi (9,143.41 km) |
| Eufaula to Sofia | 5,579.38 mi (8,979.15 km) |
| Eufaula to Sopot | 5,639.92 mi (9,076.58 km) |
| Eufaula to Sozopol | 5,769.38 mi (9,284.92 km) |
| Eufaula to Sredets | 5,752.08 mi (9,257.08 km) |
| Eufaula to Stamboliyski | 5,652.07 mi (9,096.13 km) |
| Eufaula to Stara Zagora | 5,685.66 mi (9,150.18 km) |
| Eufaula to Svilengrad | 5,735.89 mi (9,231.02 km) |
| Eufaula to Svishtov | 5,624.71 mi (9,052.09 km) |
| Eufaula to Targovishte | 5,689.41 mi (9,156.22 km) |
| Eufaula to Teteven | 5,609.26 mi (9,027.24 km) |
| Eufaula to Troyan | 5,629.04 mi (9,059.06 km) |
| Eufaula to Tryavna | 5,661.63 mi (9,111.51 km) |
| Eufaula to Tutrakan | 5,657.28 mi (9,104.51 km) |
| Eufaula to Varna | 5,743.92 mi (9,243.94 km) |
