| New River to Smolyan | 6,545.51 mi (10,533.97 km) |
| New River to Sofia | 6,441.99 mi (10,367.39 km) |
| New River to Sopot | 6,486.40 mi (10,438.85 km) |
| New River to Sozopol | 6,583.00 mi (10,594.32 km) |
| New River to Sredets | 6,573.08 mi (10,578.34 km) |
| New River to Stamboliyski | 6,509.41 mi (10,475.89 km) |
| New River to Stara Zagora | 6,524.63 mi (10,500.37 km) |
| New River to Svilengrad | 6,578.58 mi (10,587.20 km) |
| New River to Svishtov | 6,448.45 mi (10,377.77 km) |
| New River to Targovishte | 6,503.92 mi (10,467.04 km) |
| New River to Teteven | 6,457.27 mi (10,391.97 km) |
| New River to Troyan | 6,472.19 mi (10,415.98 km) |
| New River to Tryavna | 6,495.54 mi (10,453.57 km) |
| New River to Tutrakan | 6,458.64 mi (10,394.18 km) |
| New River to Varna | 6,542.27 mi (10,528.76 km) |
