| Waukesha to Smolyan | 5,261.07 mi (8,466.88 km) |
| Waukesha to Sofia | 5,156.84 mi (8,299.13 km) |
| Waukesha to Sopot | 5,209.83 mi (8,384.41 km) |
| Waukesha to Sozopol | 5,324.48 mi (8,568.92 km) |
| Waukesha to Sredets | 5,310.62 mi (8,546.61 km) |
| Waukesha to Stamboliyski | 5,227.78 mi (8,413.30 km) |
| Waukesha to Stara Zagora | 5,252.35 mi (8,452.84 km) |
| Waukesha to Svilengrad | 5,305.20 mi (8,537.89 km) |
| Waukesha to Svishtov | 5,182.80 mi (8,340.91 km) |
| Waukesha to Targovishte | 5,243.79 mi (8,439.07 km) |
| Waukesha to Teteven | 5,179.53 mi (8,335.65 km) |
| Waukesha to Troyan | 5,197.08 mi (8,363.89 km) |
| Waukesha to Tryavna | 5,225.41 mi (8,409.48 km) |
| Waukesha to Tutrakan | 5,204.67 mi (8,376.11 km) |
| Waukesha to Varna | 5,291.09 mi (8,515.19 km) |
