| North Logan to Smolyan | 6,069.90 mi (9,768.56 km) |
| North Logan to Sofia | 5,967.49 mi (9,603.75 km) |
| North Logan to Sopot | 6,007.97 mi (9,668.90 km) |
| North Logan to Sozopol | 6,096.90 mi (9,812.02 km) |
| North Logan to Sredets | 6,088.50 mi (9,798.50 km) |
| North Logan to Stamboliyski | 6,032.90 mi (9,709.01 km) |
| North Logan to Stara Zagora | 6,044.19 mi (9,727.18 km) |
| North Logan to Svilengrad | 6,098.18 mi (9,814.07 km) |
| North Logan to Svishtov | 5,966.01 mi (9,601.36 km) |
| North Logan to Targovishte | 6,018.99 mi (9,686.62 km) |
| North Logan to Teteven | 5,979.55 mi (9,623.15 km) |
| North Logan to Troyan | 5,993.28 mi (9,645.25 km) |
| North Logan to Tryavna | 6,014.49 mi (9,679.38 km) |
| North Logan to Tutrakan | 5,971.81 mi (9,610.70 km) |
| North Logan to Varna | 6,053.83 mi (9,742.70 km) |
