| Staines-upon-Thames to Popovo | 1,360.00 mi (2,188.71 km) |
| Staines-upon-Thames to Provadia | 1,416.69 mi (2,279.94 km) |
| Staines-upon-Thames to Radnevo | 1,389.01 mi (2,235.39 km) |
| Staines-upon-Thames to Radomir | 1,256.68 mi (2,022.44 km) |
| Staines-upon-Thames to Rakitovo | 1,326.48 mi (2,134.76 km) |
| Staines-upon-Thames to Rakovski | 1,349.67 mi (2,172.09 km) |
| Staines-upon-Thames to Razgrad | 1,364.92 mi (2,196.63 km) |
| Staines-upon-Thames to Razlog | 1,305.86 mi (2,101.57 km) |
| Staines-upon-Thames to Ruse | 1,330.44 mi (2,141.13 km) |
| Staines-upon-Thames to Samokov | 1,290.14 mi (2,076.28 km) |
| Staines-upon-Thames to Sandanski | 1,312.16 mi (2,111.72 km) |
| Staines-upon-Thames to Sevlievo | 1,325.97 mi (2,133.95 km) |
| Staines-upon-Thames to Shumen | 1,391.88 mi (2,240.02 km) |
| Staines-upon-Thames to Silistra | 1,374.78 mi (2,212.49 km) |
| Staines-upon-Thames to Sliven | 1,390.16 mi (2,237.25 km) |
