| Guthrie to Smolyan | 5,956.53 mi (9,586.11 km) |
| Guthrie to Sofia | 5,852.27 mi (9,418.32 km) |
| Guthrie to Sopot | 5,904.81 mi (9,502.88 km) |
| Guthrie to Sozopol | 6,018.23 mi (9,685.41 km) |
| Guthrie to Sredets | 6,004.68 mi (9,663.60 km) |
| Guthrie to Stamboliyski | 5,923.07 mi (9,532.26 km) |
| Guthrie to Stara Zagora | 5,947.09 mi (9,570.91 km) |
| Guthrie to Svilengrad | 6,000.05 mi (9,656.15 km) |
| Guthrie to Svishtov | 5,876.98 mi (9,458.08 km) |
| Guthrie to Targovishte | 5,937.59 mi (9,555.62 km) |
| Guthrie to Teteven | 5,874.56 mi (9,454.19 km) |
| Guthrie to Troyan | 5,891.96 mi (9,482.19 km) |
| Guthrie to Tryavna | 5,919.97 mi (9,527.27 km) |
| Guthrie to Tutrakan | 5,897.86 mi (9,491.70 km) |
| Guthrie to Varna | 5,984.14 mi (9,630.53 km) |
