| Gilroy to Smolyan | 6,604.59 mi (10,629.06 km) |
| Gilroy to Sofia | 6,504.02 mi (10,467.21 km) |
| Gilroy to Sopot | 6,539.72 mi (10,524.66 km) |
| Gilroy to Sozopol | 6,618.45 mi (10,651.37 km) |
| Gilroy to Sredets | 6,612.11 mi (10,641.16 km) |
| Gilroy to Stamboliyski | 6,566.76 mi (10,568.17 km) |
| Gilroy to Stara Zagora | 6,573.29 mi (10,578.68 km) |
| Gilroy to Svilengrad | 6,627.00 mi (10,665.13 km) |
| Gilroy to Svishtov | 6,493.08 mi (10,449.60 km) |
| Gilroy to Targovishte | 6,542.55 mi (10,529.21 km) |
| Gilroy to Teteven | 6,512.28 mi (10,480.51 km) |
| Gilroy to Troyan | 6,524.53 mi (10,500.21 km) |
| Gilroy to Tryavna | 6,542.99 mi (10,529.93 km) |
| Gilroy to Tutrakan | 6,493.15 mi (10,449.71 km) |
| Gilroy to Varna | 6,572.48 mi (10,577.39 km) |
