| New Smyrna Beach to Smolyan | 5,640.66 mi (9,077.77 km) |
| New Smyrna Beach to Sofia | 5,540.67 mi (8,916.84 km) |
| New Smyrna Beach to Sopot | 5,604.20 mi (9,019.08 km) |
| New Smyrna Beach to Sozopol | 5,739.52 mi (9,236.86 km) |
| New Smyrna Beach to Sredets | 5,720.72 mi (9,206.60 km) |
| New Smyrna Beach to Stamboliyski | 5,613.45 mi (9,033.97 km) |
| New Smyrna Beach to Stara Zagora | 5,651.01 mi (9,094.42 km) |
| New Smyrna Beach to Svilengrad | 5,699.48 mi (9,172.43 km) |
| New Smyrna Beach to Svishtov | 5,594.84 mi (9,004.03 km) |
| New Smyrna Beach to Targovishte | 5,660.70 mi (9,110.01 km) |
| New Smyrna Beach to Teteven | 5,573.68 mi (8,969.97 km) |
| New Smyrna Beach to Troyan | 5,594.32 mi (9,003.19 km) |
| New Smyrna Beach to Tryavna | 5,628.64 mi (9,058.42 km) |
| New Smyrna Beach to Tutrakan | 5,632.32 mi (9,064.35 km) |
| New Smyrna Beach to Varna | 5,718.21 mi (9,202.56 km) |
