| Menlo Park to Smolyan | 6,588.66 mi (10,603.43 km) |
| Menlo Park to Sofia | 6,488.39 mi (10,442.06 km) |
| Menlo Park to Sopot | 6,523.42 mi (10,498.43 km) |
| Menlo Park to Sozopol | 6,600.77 mi (10,622.91 km) |
| Menlo Park to Sredets | 6,594.70 mi (10,613.14 km) |
| Menlo Park to Stamboliyski | 6,550.73 mi (10,542.38 km) |
| Menlo Park to Stara Zagora | 6,556.61 mi (10,551.85 km) |
| Menlo Park to Svilengrad | 6,610.26 mi (10,638.19 km) |
| Menlo Park to Svishtov | 6,476.18 mi (10,422.40 km) |
| Menlo Park to Targovishte | 6,525.16 mi (10,501.24 km) |
| Menlo Park to Teteven | 6,496.13 mi (10,454.51 km) |
| Menlo Park to Troyan | 6,508.17 mi (10,473.88 km) |
| Menlo Park to Tryavna | 6,526.26 mi (10,502.99 km) |
| Menlo Park to Tutrakan | 6,475.50 mi (10,421.31 km) |
| Menlo Park to Varna | 6,554.46 mi (10,548.39 km) |
