| Kilgore to Smolyan | 6,044.00 mi (9,726.88 km) |
| Kilgore to Sofia | 5,940.18 mi (9,559.80 km) |
| Kilgore to Sopot | 5,995.93 mi (9,649.51 km) |
| Kilgore to Sozopol | 6,115.74 mi (9,842.33 km) |
| Kilgore to Sredets | 6,100.75 mi (9,818.21 km) |
| Kilgore to Stamboliyski | 6,011.96 mi (9,675.31 km) |
| Kilgore to Stara Zagora | 6,039.66 mi (9,719.89 km) |
| Kilgore to Svilengrad | 6,091.80 mi (9,803.81 km) |
| Kilgore to Svishtov | 5,972.69 mi (9,612.11 km) |
| Kilgore to Targovishte | 6,035.04 mi (9,712.45 km) |
| Kilgore to Teteven | 5,965.41 mi (9,600.40 km) |
| Kilgore to Troyan | 5,983.76 mi (9,629.93 km) |
| Kilgore to Tryavna | 6,013.59 mi (9,677.94 km) |
| Kilgore to Tutrakan | 5,997.95 mi (9,652.77 km) |
| Kilgore to Varna | 6,084.69 mi (9,792.36 km) |
