| Indianapolis to Smolyan | 5,339.98 mi (8,593.87 km) |
| Indianapolis to Sofia | 5,236.18 mi (8,426.81 km) |
| Indianapolis to Sopot | 5,292.07 mi (8,516.77 km) |
| Indianapolis to Sozopol | 5,412.46 mi (8,710.52 km) |
| Indianapolis to Sredets | 5,397.31 mi (8,686.13 km) |
| Indianapolis to Stamboliyski | 5,307.99 mi (8,542.38 km) |
| Indianapolis to Stara Zagora | 5,335.90 mi (8,587.29 km) |
| Indianapolis to Svilengrad | 5,387.97 mi (8,671.10 km) |
| Indianapolis to Svishtov | 5,269.24 mi (8,480.02 km) |
| Indianapolis to Targovishte | 5,331.78 mi (8,580.67 km) |
| Indianapolis to Teteven | 5,261.54 mi (8,467.63 km) |
| Indianapolis to Troyan | 5,279.95 mi (8,497.27 km) |
| Indianapolis to Tryavna | 5,309.92 mi (8,545.49 km) |
| Indianapolis to Tutrakan | 5,295.08 mi (8,521.61 km) |
| Indianapolis to Varna | 5,381.86 mi (8,661.26 km) |
