| Spring Lake to Smolyan | 5,268.36 mi (8,478.61 km) |
| Spring Lake to Sofia | 5,166.75 mi (8,315.09 km) |
| Spring Lake to Sopot | 5,228.11 mi (8,413.83 km) |
| Spring Lake to Sozopol | 5,359.30 mi (8,624.96 km) |
| Spring Lake to Sredets | 5,341.55 mi (8,596.40 km) |
| Spring Lake to Stamboliyski | 5,239.51 mi (8,432.18 km) |
| Spring Lake to Stara Zagora | 5,274.17 mi (8,487.95 km) |
| Spring Lake to Svilengrad | 5,323.96 mi (8,568.09 km) |
| Spring Lake to Svishtov | 5,214.53 mi (8,391.97 km) |
| Spring Lake to Targovishte | 5,279.61 mi (8,496.71 km) |
| Spring Lake to Teteven | 5,197.47 mi (8,364.52 km) |
| Spring Lake to Troyan | 5,217.50 mi (8,396.75 km) |
| Spring Lake to Tryavna | 5,250.58 mi (8,450.00 km) |
| Spring Lake to Tutrakan | 5,248.60 mi (8,446.80 km) |
| Spring Lake to Varna | 5,335.07 mi (8,585.96 km) |
