| Upper Arlington to Smolyan | 5,209.70 mi (8,384.20 km) |
| Upper Arlington to Sofia | 5,106.19 mi (8,217.62 km) |
| Upper Arlington to Sopot | 5,163.27 mi (8,309.48 km) |
| Upper Arlington to Sozopol | 5,286.05 mi (8,507.08 km) |
| Upper Arlington to Sredets | 5,270.34 mi (8,481.79 km) |
| Upper Arlington to Stamboliyski | 5,178.29 mi (8,333.65 km) |
| Upper Arlington to Stara Zagora | 5,207.61 mi (8,380.84 km) |
| Upper Arlington to Svilengrad | 5,259.29 mi (8,464.01 km) |
| Upper Arlington to Svishtov | 5,142.30 mi (8,275.74 km) |
| Upper Arlington to Targovishte | 5,205.47 mi (8,377.39 km) |
| Upper Arlington to Teteven | 5,132.67 mi (8,260.24 km) |
| Upper Arlington to Troyan | 5,151.44 mi (8,290.44 km) |
| Upper Arlington to Tryavna | 5,182.09 mi (8,339.77 km) |
| Upper Arlington to Tutrakan | 5,169.91 mi (8,320.17 km) |
| Upper Arlington to Varna | 5,256.75 mi (8,459.92 km) |
