| Apex to Smolyan | 5,238.53 mi (8,430.61 km) |
| Apex to Sofia | 5,136.78 mi (8,266.85 km) |
| Apex to Sopot | 5,197.91 mi (8,365.23 km) |
| Apex to Sozopol | 5,328.65 mi (8,575.64 km) |
| Apex to Sredets | 5,311.02 mi (8,547.26 km) |
| Apex to Stamboliyski | 5,209.52 mi (8,383.92 km) |
| Apex to Stara Zagora | 5,243.88 mi (8,439.21 km) |
| Apex to Svilengrad | 5,293.80 mi (8,519.54 km) |
| Apex to Svishtov | 5,183.90 mi (8,342.68 km) |
| Apex to Targovishte | 5,248.89 mi (8,447.28 km) |
| Apex to Teteven | 5,167.26 mi (8,315.91 km) |
| Apex to Troyan | 5,187.22 mi (8,348.03 km) |
| Apex to Tryavna | 5,220.18 mi (8,401.07 km) |
| Apex to Tutrakan | 5,217.62 mi (8,396.95 km) |
| Apex to Varna | 5,304.13 mi (8,536.18 km) |
