| Rockwall to Smolyan | 6,075.90 mi (9,778.22 km) |
| Rockwall to Sofia | 5,971.87 mi (9,610.80 km) |
| Rockwall to Sopot | 6,026.52 mi (9,698.75 km) |
| Rockwall to Sozopol | 6,144.11 mi (9,888.00 km) |
| Rockwall to Sredets | 6,129.63 mi (9,864.69 km) |
| Rockwall to Stamboliyski | 6,043.35 mi (9,725.83 km) |
| Rockwall to Stara Zagora | 6,069.76 mi (9,768.33 km) |
| Rockwall to Svilengrad | 6,122.22 mi (9,852.76 km) |
| Rockwall to Svishtov | 6,001.63 mi (9,658.69 km) |
| Rockwall to Targovishte | 6,063.39 mi (9,758.08 km) |
| Rockwall to Teteven | 5,996.08 mi (9,649.76 km) |
| Rockwall to Troyan | 6,014.10 mi (9,678.77 km) |
| Rockwall to Tryavna | 6,043.30 mi (9,725.75 km) |
| Rockwall to Tutrakan | 6,025.33 mi (9,696.84 km) |
| Rockwall to Varna | 6,111.95 mi (9,836.23 km) |
