| Deltona to Smolyan | 5,657.28 mi (9,104.51 km) |
| Deltona to Sofia | 5,557.25 mi (8,943.52 km) |
| Deltona to Sopot | 5,620.73 mi (9,045.70 km) |
| Deltona to Sozopol | 5,755.98 mi (9,263.35 km) |
| Deltona to Sredets | 5,737.20 mi (9,233.13 km) |
| Deltona to Stamboliyski | 5,630.03 mi (9,060.65 km) |
| Deltona to Stara Zagora | 5,667.54 mi (9,121.02 km) |
| Deltona to Svilengrad | 5,716.04 mi (9,199.07 km) |
| Deltona to Svishtov | 5,611.29 mi (9,030.50 km) |
| Deltona to Targovishte | 5,677.13 mi (9,136.47 km) |
| Deltona to Teteven | 5,590.21 mi (8,996.58 km) |
| Deltona to Troyan | 5,610.85 mi (9,029.78 km) |
| Deltona to Tryavna | 5,645.14 mi (9,084.97 km) |
| Deltona to Tutrakan | 5,648.70 mi (9,090.70 km) |
| Deltona to Varna | 5,734.60 mi (9,228.94 km) |
