| Cowley to Smolyan | 1,403.98 mi (2,259.48 km) |
| Cowley to Sofia | 1,301.17 mi (2,094.04 km) |
| Cowley to Sopot | 1,361.01 mi (2,190.34 km) |
| Cowley to Sozopol | 1,492.04 mi (2,401.21 km) |
| Cowley to Sredets | 1,474.01 mi (2,372.20 km) |
| Cowley to Stamboliyski | 1,373.71 mi (2,210.78 km) |
| Cowley to Stara Zagora | 1,406.76 mi (2,263.96 km) |
| Cowley to Svilengrad | 1,457.00 mi (2,344.82 km) |
| Cowley to Svishtov | 1,347.25 mi (2,168.19 km) |
| Cowley to Targovishte | 1,412.70 mi (2,273.52 km) |
| Cowley to Teteven | 1,330.35 mi (2,140.99 km) |
| Cowley to Troyan | 1,350.13 mi (2,172.82 km) |
| Cowley to Tryavna | 1,382.98 mi (2,225.69 km) |
| Cowley to Tutrakan | 1,383.73 mi (2,226.90 km) |
| Cowley to Varna | 1,469.63 mi (2,365.14 km) |
