| Storrs to Smolyan | 4,696.76 mi (7,558.71 km) |
| Storrs to Sofia | 4,594.44 mi (7,394.03 km) |
| Storrs to Sopot | 4,654.57 mi (7,490.81 km) |
| Storrs to Sozopol | 4,783.55 mi (7,698.38 km) |
| Storrs to Sredets | 4,766.33 mi (7,670.67 km) |
| Storrs to Stamboliyski | 4,667.08 mi (7,510.93 km) |
| Storrs to Stara Zagora | 4,700.18 mi (7,564.21 km) |
| Storrs to Svilengrad | 4,750.58 mi (7,645.32 km) |
| Storrs to Svishtov | 4,638.90 mi (7,465.59 km) |
| Storrs to Targovishte | 4,703.55 mi (7,569.63 km) |
| Storrs to Teteven | 4,623.91 mi (7,441.47 km) |
| Storrs to Troyan | 4,643.59 mi (7,473.14 km) |
| Storrs to Tryavna | 4,676.02 mi (7,525.33 km) |
| Storrs to Tutrakan | 4,671.36 mi (7,517.83 km) |
| Storrs to Varna | 4,758.00 mi (7,657.27 km) |
