| Lake Jackson to Popovo | 6,220.60 mi (10,011.08 km) |
| Lake Jackson to Provadia | 6,272.98 mi (10,095.38 km) |
| Lake Jackson to Radnevo | 6,257.66 mi (10,070.73 km) |
| Lake Jackson to Radomir | 6,131.08 mi (9,867.02 km) |
| Lake Jackson to Rakitovo | 6,200.63 mi (9,978.94 km) |
| Lake Jackson to Rakovski | 6,221.09 mi (10,011.87 km) |
| Lake Jackson to Razgrad | 6,222.68 mi (10,014.43 km) |
| Lake Jackson to Razlog | 6,180.91 mi (9,947.22 km) |
| Lake Jackson to Ruse | 6,188.38 mi (9,959.23 km) |
| Lake Jackson to Samokov | 6,164.19 mi (9,920.31 km) |
| Lake Jackson to Sandanski | 6,187.63 mi (9,958.03 km) |
| Lake Jackson to Sevlievo | 6,193.24 mi (9,967.06 km) |
| Lake Jackson to Shumen | 6,249.77 mi (10,058.03 km) |
| Lake Jackson to Silistra | 6,222.87 mi (10,014.74 km) |
| Lake Jackson to Sliven | 6,255.16 mi (10,066.71 km) |
