| San Sebastian de los Reyes to Popovo | 1,538.25 mi (2,475.57 km) |
| San Sebastian de los Reyes to Provadia | 1,599.23 mi (2,573.71 km) |
| San Sebastian de los Reyes to Radnevo | 1,528.50 mi (2,459.88 km) |
| San Sebastian de los Reyes to Radomir | 1,375.48 mi (2,213.62 km) |
| San Sebastian de los Reyes to Rakitovo | 1,436.21 mi (2,311.35 km) |
| San Sebastian de los Reyes to Rakovski | 1,479.32 mi (2,380.73 km) |
| San Sebastian de los Reyes to Razgrad | 1,551.80 mi (2,497.37 km) |
| San Sebastian de los Reyes to Razlog | 1,405.30 mi (2,261.61 km) |
| San Sebastian de los Reyes to Ruse | 1,522.90 mi (2,450.87 km) |
| San Sebastian de los Reyes to Samokov | 1,407.23 mi (2,264.72 km) |
| San Sebastian de los Reyes to Sandanski | 1,398.01 mi (2,249.88 km) |
| San Sebastian de los Reyes to Sevlievo | 1,483.14 mi (2,386.89 km) |
| San Sebastian de los Reyes to Shumen | 1,573.65 mi (2,532.54 km) |
| San Sebastian de los Reyes to Silistra | 1,587.21 mi (2,554.36 km) |
| San Sebastian de los Reyes to Sliven | 1,546.43 mi (2,488.74 km) |
