| Felixstowe to Smolyan | 1,308.23 mi (2,105.39 km) |
| Felixstowe to Sofia | 1,204.77 mi (1,938.88 km) |
| Felixstowe to Sopot | 1,262.85 mi (2,032.37 km) |
| Felixstowe to Sozopol | 1,391.10 mi (2,238.77 km) |
| Felixstowe to Sredets | 1,373.70 mi (2,210.76 km) |
| Felixstowe to Stamboliyski | 1,276.97 mi (2,055.09 km) |
| Felixstowe to Stara Zagora | 1,307.98 mi (2,105.00 km) |
| Felixstowe to Svilengrad | 1,358.93 mi (2,186.99 km) |
| Felixstowe to Svishtov | 1,246.38 mi (2,005.85 km) |
| Felixstowe to Targovishte | 1,311.32 mi (2,110.36 km) |
| Felixstowe to Teteven | 1,232.20 mi (1,983.04 km) |
| Felixstowe to Troyan | 1,251.51 mi (2,014.11 km) |
| Felixstowe to Tryavna | 1,283.48 mi (2,065.57 km) |
| Felixstowe to Tutrakan | 1,280.84 mi (2,061.32 km) |
| Felixstowe to Varna | 1,367.09 mi (2,200.12 km) |
