| Lewisville to Smolyan | 6,089.22 mi (9,799.64 km) |
| Lewisville to Sofia | 5,985.13 mi (9,632.14 km) |
| Lewisville to Sopot | 6,039.42 mi (9,719.50 km) |
| Lewisville to Sozopol | 6,156.28 mi (9,907.58 km) |
| Lewisville to Sredets | 6,141.97 mi (9,884.54 km) |
| Lewisville to Stamboliyski | 6,056.50 mi (9,746.99 km) |
| Lewisville to Stara Zagora | 6,082.49 mi (9,788.82 km) |
| Lewisville to Svilengrad | 6,135.05 mi (9,873.41 km) |
| Lewisville to Svishtov | 6,014.00 mi (9,678.60 km) |
| Lewisville to Targovishte | 6,075.56 mi (9,777.68 km) |
| Lewisville to Teteven | 6,009.01 mi (9,670.56 km) |
| Lewisville to Troyan | 6,026.92 mi (9,699.40 km) |
| Lewisville to Tryavna | 6,055.92 mi (9,746.05 km) |
| Lewisville to Tutrakan | 6,037.20 mi (9,715.93 km) |
| Lewisville to Varna | 6,123.76 mi (9,855.24 km) |
