| Boadilla del Monte to Devnya | 1,621.13 mi (2,608.95 km) |
| Boadilla del Monte to Dimitrovgrad | 1,528.26 mi (2,459.49 km) |
| Boadilla del Monte to Dobrich | 1,632.95 mi (2,627.98 km) |
| Boadilla del Monte to Dospat | 1,457.69 mi (2,345.92 km) |
| Boadilla del Monte to Dupnitsa | 1,400.37 mi (2,253.67 km) |
| Boadilla del Monte to Elhovo | 1,576.74 mi (2,537.52 km) |
| Boadilla del Monte to Etropole | 1,442.86 mi (2,322.06 km) |
| Boadilla del Monte to Gabrovo | 1,510.17 mi (2,430.38 km) |
| Boadilla del Monte to Gorna Oryahovitsa | 1,527.60 mi (2,458.44 km) |
| Boadilla del Monte to Gotse Delchev | 1,436.03 mi (2,311.06 km) |
| Boadilla del Monte to Harmanli | 1,544.41 mi (2,485.49 km) |
| Boadilla del Monte to Haskovo | 1,527.37 mi (2,458.07 km) |
| Boadilla del Monte to Ihtiman | 1,435.13 mi (2,309.62 km) |
| Boadilla del Monte to Isperih | 1,582.50 mi (2,546.78 km) |
| Boadilla del Monte to Kardzhali | 1,519.27 mi (2,445.03 km) |
