| Olean to Smolyan | 4,934.41 mi (7,941.17 km) |
| Olean to Sofia | 4,831.10 mi (7,774.90 km) |
| Olean to Sopot | 4,888.81 mi (7,867.79 km) |
| Olean to Sozopol | 5,012.97 mi (8,067.59 km) |
| Olean to Sredets | 4,996.92 mi (8,041.76 km) |
| Olean to Stamboliyski | 4,903.33 mi (7,891.15 km) |
| Olean to Stara Zagora | 4,933.43 mi (7,939.60 km) |
| Olean to Svilengrad | 4,984.87 mi (8,022.38 km) |
| Olean to Svishtov | 4,868.95 mi (7,835.82 km) |
| Olean to Targovishte | 4,932.47 mi (7,938.04 km) |
| Olean to Teteven | 4,858.19 mi (7,818.50 km) |
| Olean to Troyan | 4,877.15 mi (7,849.02 km) |
| Olean to Tryavna | 4,908.19 mi (7,898.96 km) |
| Olean to Tutrakan | 4,897.65 mi (7,882.00 km) |
| Olean to Varna | 4,984.48 mi (8,021.75 km) |
