| Estoril to Karlovo | 1,800.48 mi (2,897.60 km) |
| Estoril to Karnobat | 1,910.91 mi (3,075.32 km) |
| Estoril to Kavarna | 1,975.17 mi (3,178.73 km) |
| Estoril to Kazanlak | 1,830.68 mi (2,946.19 km) |
| Estoril to Knezha | 1,762.05 mi (2,835.74 km) |
| Estoril to Kostinbrod | 1,719.35 mi (2,767.02 km) |
| Estoril to Kozloduy | 1,744.44 mi (2,807.40 km) |
| Estoril to Kyustendil | 1,693.52 mi (2,725.46 km) |
| Estoril to Levski | 1,814.91 mi (2,920.82 km) |
| Estoril to Lom | 1,719.73 mi (2,767.64 km) |
| Estoril to Lovech | 1,794.49 mi (2,887.95 km) |
| Estoril to Lukovit | 1,766.63 mi (2,843.11 km) |
| Estoril to Lyaskovets | 1,844.95 mi (2,969.17 km) |
| Estoril to Mezdra | 1,743.20 mi (2,805.41 km) |
| Estoril to Momchilgrad | 1,837.35 mi (2,956.93 km) |
