| Hayden to Smolyan | 5,830.01 mi (9,382.50 km) |
| Hayden to Sofia | 5,730.27 mi (9,221.98 km) |
| Hayden to Sopot | 5,764.22 mi (9,276.62 km) |
| Hayden to Sozopol | 5,839.99 mi (9,398.56 km) |
| Hayden to Sredets | 5,834.16 mi (9,389.18 km) |
| Hayden to Stamboliyski | 5,791.94 mi (9,321.22 km) |
| Hayden to Stara Zagora | 5,796.91 mi (9,329.22 km) |
| Hayden to Svilengrad | 5,850.47 mi (9,415.42 km) |
| Hayden to Svishtov | 5,716.20 mi (9,199.34 km) |
| Hayden to Targovishte | 5,764.66 mi (9,277.33 km) |
| Hayden to Teteven | 5,737.16 mi (9,233.06 km) |
| Hayden to Troyan | 5,748.89 mi (9,251.94 km) |
| Hayden to Tryavna | 5,766.48 mi (9,280.25 km) |
| Hayden to Tutrakan | 5,714.77 mi (9,197.03 km) |
| Hayden to Varna | 5,793.42 mi (9,323.61 km) |
