| Colchester to Smolyan | 1,323.75 mi (2,130.37 km) |
| Colchester to Sofia | 1,220.42 mi (1,964.08 km) |
| Colchester to Sopot | 1,278.92 mi (2,058.22 km) |
| Colchester to Sozopol | 1,407.84 mi (2,265.69 km) |
| Colchester to Sredets | 1,390.28 mi (2,237.45 km) |
| Colchester to Stamboliyski | 1,292.71 mi (2,080.42 km) |
| Colchester to Stara Zagora | 1,324.20 mi (2,131.10 km) |
| Colchester to Svilengrad | 1,374.99 mi (2,212.83 km) |
| Colchester to Svishtov | 1,263.08 mi (2,032.73 km) |
| Colchester to Targovishte | 1,328.15 mi (2,137.45 km) |
| Colchester to Teteven | 1,248.26 mi (2,008.89 km) |
| Colchester to Troyan | 1,267.68 mi (2,040.13 km) |
| Colchester to Tryavna | 1,299.87 mi (2,091.93 km) |
| Colchester to Tutrakan | 1,298.04 mi (2,088.99 km) |
| Colchester to Varna | 1,384.21 mi (2,227.67 km) |
