| Bellaire to Smolyan | 6,208.75 mi (9,992.01 km) |
| Bellaire to Sofia | 6,105.19 mi (9,825.35 km) |
| Bellaire to Sopot | 6,161.99 mi (9,916.77 km) |
| Bellaire to Sozopol | 6,283.85 mi (10,112.88 km) |
| Bellaire to Sredets | 6,268.39 mi (10,088.01 km) |
| Bellaire to Stamboliyski | 6,177.23 mi (9,941.30 km) |
| Bellaire to Stara Zagora | 6,206.17 mi (9,987.87 km) |
| Bellaire to Svilengrad | 6,257.98 mi (10,071.25 km) |
| Bellaire to Svishtov | 6,140.33 mi (9,881.91 km) |
| Bellaire to Targovishte | 6,203.21 mi (9,983.10 km) |
| Bellaire to Teteven | 6,131.41 mi (9,867.55 km) |
| Bellaire to Troyan | 6,150.08 mi (9,897.59 km) |
| Bellaire to Tryavna | 6,180.49 mi (9,946.54 km) |
| Bellaire to Tutrakan | 6,167.02 mi (9,924.87 km) |
| Bellaire to Varna | 6,253.83 mi (10,064.57 km) |
