| Illescas to Popovo | 1,557.67 mi (2,506.83 km) |
| Illescas to Provadia | 1,618.52 mi (2,604.76 km) |
| Illescas to Radnevo | 1,546.68 mi (2,489.14 km) |
| Illescas to Radomir | 1,393.79 mi (2,243.08 km) |
| Illescas to Rakitovo | 1,453.85 mi (2,339.75 km) |
| Illescas to Rakovski | 1,497.41 mi (2,409.85 km) |
| Illescas to Razgrad | 1,571.44 mi (2,528.99 km) |
| Illescas to Razlog | 1,422.76 mi (2,289.72 km) |
| Illescas to Ruse | 1,542.86 mi (2,482.99 km) |
| Illescas to Samokov | 1,425.30 mi (2,293.79 km) |
| Illescas to Sandanski | 1,415.04 mi (2,277.29 km) |
| Illescas to Sevlievo | 1,502.14 mi (2,417.47 km) |
| Illescas to Shumen | 1,593.03 mi (2,563.73 km) |
| Illescas to Silistra | 1,607.51 mi (2,587.04 km) |
| Illescas to Sliven | 1,565.10 mi (2,518.78 km) |
