| Boca Raton to Smolyan | 5,727.93 mi (9,218.21 km) |
| Boca Raton to Sofia | 5,629.30 mi (9,059.48 km) |
| Boca Raton to Sopot | 5,694.25 mi (9,164.00 km) |
| Boca Raton to Sozopol | 5,832.30 mi (9,386.18 km) |
| Boca Raton to Sredets | 5,812.76 mi (9,354.73 km) |
| Boca Raton to Stamboliyski | 5,701.93 mi (9,176.38 km) |
| Boca Raton to Stara Zagora | 5,741.51 mi (9,240.06 km) |
| Boca Raton to Svilengrad | 5,788.92 mi (9,316.36 km) |
| Boca Raton to Svishtov | 5,688.00 mi (9,153.95 km) |
| Boca Raton to Targovishte | 5,754.29 mi (9,260.63 km) |
| Boca Raton to Teteven | 5,663.88 mi (9,115.13 km) |
| Boca Raton to Troyan | 5,684.93 mi (9,149.01 km) |
| Boca Raton to Tryavna | 5,720.07 mi (9,205.56 km) |
| Boca Raton to Tutrakan | 5,727.93 mi (9,218.22 km) |
| Boca Raton to Varna | 5,813.20 mi (9,355.44 km) |
