| Rowlett to Popovo | 6,050.11 mi (9,736.71 km) |
| Rowlett to Provadia | 6,100.67 mi (9,818.08 km) |
| Rowlett to Radnevo | 6,090.63 mi (9,801.92 km) |
| Rowlett to Radomir | 5,969.04 mi (9,606.24 km) |
| Rowlett to Rakitovo | 6,038.06 mi (9,717.32 km) |
| Rowlett to Rakovski | 6,055.95 mi (9,746.12 km) |
| Rowlett to Razgrad | 6,051.16 mi (9,738.40 km) |
| Rowlett to Razlog | 6,019.82 mi (9,687.97 km) |
| Rowlett to Ruse | 6,017.12 mi (9,683.62 km) |
| Rowlett to Samokov | 6,001.62 mi (9,658.68 km) |
| Rowlett to Sandanski | 6,027.82 mi (9,700.83 km) |
| Rowlett to Sevlievo | 6,025.76 mi (9,697.53 km) |
| Rowlett to Shumen | 6,078.14 mi (9,781.82 km) |
| Rowlett to Silistra | 6,048.39 mi (9,733.95 km) |
| Rowlett to Sliven | 6,086.30 mi (9,794.96 km) |
