| Appleton to Smolyan | 1,495.90 mi (2,407.42 km) |
| Appleton to Sofia | 1,392.20 mi (2,240.53 km) |
| Appleton to Sopot | 1,449.30 mi (2,332.43 km) |
| Appleton to Sozopol | 1,575.32 mi (2,535.23 km) |
| Appleton to Sredets | 1,558.48 mi (2,508.14 km) |
| Appleton to Stamboliyski | 1,464.20 mi (2,356.40 km) |
| Appleton to Stara Zagora | 1,494.00 mi (2,404.36 km) |
| Appleton to Svilengrad | 1,545.36 mi (2,487.02 km) |
| Appleton to Svishtov | 1,430.80 mi (2,302.65 km) |
| Appleton to Targovishte | 1,495.18 mi (2,406.26 km) |
| Appleton to Teteven | 1,418.69 mi (2,283.15 km) |
| Appleton to Troyan | 1,437.67 mi (2,313.70 km) |
| Appleton to Tryavna | 1,469.00 mi (2,364.13 km) |
| Appleton to Tutrakan | 1,463.10 mi (2,354.63 km) |
| Appleton to Varna | 1,549.66 mi (2,493.93 km) |
