| Firestone to Smolyan | 5,967.92 mi (9,604.44 km) |
| Firestone to Sofia | 5,864.14 mi (9,437.42 km) |
| Firestone to Sopot | 5,909.91 mi (9,511.09 km) |
| Firestone to Sozopol | 6,009.66 mi (9,671.62 km) |
| Firestone to Sredets | 5,999.04 mi (9,654.53 km) |
| Firestone to Stamboliyski | 5,932.19 mi (9,546.94 km) |
| Firestone to Stara Zagora | 5,948.88 mi (9,573.80 km) |
| Firestone to Svilengrad | 6,002.76 mi (9,660.51 km) |
| Firestone to Svishtov | 5,873.63 mi (9,452.70 km) |
| Firestone to Targovishte | 5,930.14 mi (9,543.63 km) |
| Firestone to Teteven | 5,880.55 mi (9,463.83 km) |
| Firestone to Troyan | 5,895.90 mi (9,488.54 km) |
| Firestone to Tryavna | 5,920.09 mi (9,527.47 km) |
| Firestone to Tutrakan | 5,885.82 mi (9,472.32 km) |
| Firestone to Varna | 5,970.12 mi (9,607.98 km) |
