| Ifs to Smolyan | 1,315.70 mi (2,117.41 km) |
| Ifs to Sofia | 1,215.92 mi (1,956.83 km) |
| Ifs to Sopot | 1,280.46 mi (2,060.71 km) |
| Ifs to Sozopol | 1,419.71 mi (2,284.80 km) |
| Ifs to Sredets | 1,399.60 mi (2,252.43 km) |
| Ifs to Stamboliyski | 1,288.66 mi (2,073.89 km) |
| Ifs to Stara Zagora | 1,327.75 mi (2,136.81 km) |
| Ifs to Svilengrad | 1,375.24 mi (2,213.23 km) |
| Ifs to Svishtov | 1,276.10 mi (2,053.68 km) |
| Ifs to Targovishte | 1,342.76 mi (2,160.96 km) |
| Ifs to Teteven | 1,250.10 mi (2,011.84 km) |
| Ifs to Troyan | 1,271.20 mi (2,045.80 km) |
| Ifs to Tryavna | 1,306.62 mi (2,102.80 km) |
| Ifs to Tutrakan | 1,320.02 mi (2,124.37 km) |
| Ifs to Varna | 1,403.65 mi (2,258.96 km) |
