| Illescas to Karlovo | 1,487.86 mi (2,394.48 km) |
| Illescas to Karnobat | 1,598.28 mi (2,572.19 km) |
| Illescas to Kavarna | 1,662.73 mi (2,675.90 km) |
| Illescas to Kazanlak | 1,518.05 mi (2,443.06 km) |
| Illescas to Knezha | 1,449.59 mi (2,332.89 km) |
| Illescas to Kostinbrod | 1,406.72 mi (2,263.90 km) |
| Illescas to Kozloduy | 1,432.13 mi (2,304.80 km) |
| Illescas to Kyustendil | 1,380.98 mi (2,222.48 km) |
| Illescas to Levski | 1,502.40 mi (2,417.89 km) |
| Illescas to Lom | 1,407.46 mi (2,265.08 km) |
| Illescas to Lovech | 1,481.91 mi (2,384.90 km) |
| Illescas to Lukovit | 1,454.06 mi (2,340.08 km) |
| Illescas to Lyaskovets | 1,532.37 mi (2,466.11 km) |
| Illescas to Mezdra | 1,430.61 mi (2,302.35 km) |
| Illescas to Momchilgrad | 1,525.12 mi (2,454.44 km) |
