| Triel-sur-Seine to Smolyan | 1,209.76 mi (1,946.91 km) |
| Triel-sur-Seine to Sofia | 1,109.57 mi (1,785.69 km) |
| Triel-sur-Seine to Sopot | 1,173.75 mi (1,888.97 km) |
| Triel-sur-Seine to Sozopol | 1,312.56 mi (2,112.36 km) |
| Triel-sur-Seine to Sredets | 1,292.54 mi (2,080.15 km) |
| Triel-sur-Seine to Stamboliyski | 1,182.35 mi (1,902.80 km) |
| Triel-sur-Seine to Stara Zagora | 1,220.95 mi (1,964.93 km) |
| Triel-sur-Seine to Svilengrad | 1,268.68 mi (2,041.74 km) |
| Triel-sur-Seine to Svishtov | 1,168.86 mi (1,881.11 km) |
| Triel-sur-Seine to Targovishte | 1,235.51 mi (1,988.35 km) |
| Triel-sur-Seine to Teteven | 1,143.35 mi (1,840.04 km) |
| Triel-sur-Seine to Troyan | 1,164.37 mi (1,873.87 km) |
| Triel-sur-Seine to Tryavna | 1,199.64 mi (1,930.63 km) |
| Triel-sur-Seine to Tutrakan | 1,212.66 mi (1,951.59 km) |
| Triel-sur-Seine to Varna | 1,296.32 mi (2,086.22 km) |
