| Ickenham to Smolyan | 1,368.96 mi (2,203.12 km) |
| Ickenham to Sofia | 1,266.16 mi (2,037.69 km) |
| Ickenham to Sopot | 1,326.03 mi (2,134.04 km) |
| Ickenham to Sozopol | 1,457.20 mi (2,345.14 km) |
| Ickenham to Sredets | 1,439.13 mi (2,316.06 km) |
| Ickenham to Stamboliyski | 1,338.70 mi (2,154.43 km) |
| Ickenham to Stara Zagora | 1,371.80 mi (2,207.70 km) |
| Ickenham to Svilengrad | 1,422.02 mi (2,288.52 km) |
| Ickenham to Svishtov | 1,312.41 mi (2,112.12 km) |
| Ickenham to Targovishte | 1,377.90 mi (2,217.52 km) |
| Ickenham to Teteven | 1,295.37 mi (2,084.70 km) |
| Ickenham to Troyan | 1,315.17 mi (2,116.56 km) |
| Ickenham to Tryavna | 1,348.06 mi (2,169.49 km) |
| Ickenham to Tutrakan | 1,349.09 mi (2,171.15 km) |
| Ickenham to Varna | 1,434.95 mi (2,309.32 km) |
