| Auburn to Smolyan | 5,661.53 mi (9,111.35 km) |
| Auburn to Sofia | 5,559.21 mi (8,946.68 km) |
| Auburn to Sopot | 5,619.26 mi (9,043.32 km) |
| Auburn to Sozopol | 5,747.76 mi (9,250.12 km) |
| Auburn to Sredets | 5,730.69 mi (9,222.66 km) |
| Auburn to Stamboliyski | 5,631.84 mi (9,063.57 km) |
| Auburn to Stara Zagora | 5,664.80 mi (9,116.62 km) |
| Auburn to Svilengrad | 5,715.27 mi (9,197.85 km) |
| Auburn to Svishtov | 5,603.17 mi (9,017.43 km) |
| Auburn to Targovishte | 5,667.66 mi (9,121.22 km) |
| Auburn to Teteven | 5,588.59 mi (8,993.97 km) |
| Auburn to Troyan | 5,608.23 mi (9,025.57 km) |
| Auburn to Tryavna | 5,640.54 mi (9,077.57 km) |
| Auburn to Tutrakan | 5,634.99 mi (9,068.64 km) |
| Auburn to Varna | 5,721.69 mi (9,208.18 km) |
