| Boiro to Devnya | 1,830.38 mi (2,945.72 km) |
| Boiro to Dimitrovgrad | 1,749.84 mi (2,816.10 km) |
| Boiro to Dobrich | 1,838.82 mi (2,959.30 km) |
| Boiro to Dospat | 1,684.43 mi (2,710.82 km) |
| Boiro to Dupnitsa | 1,622.54 mi (2,611.23 km) |
| Boiro to Elhovo | 1,796.26 mi (2,890.80 km) |
| Boiro to Etropole | 1,658.78 mi (2,669.54 km) |
| Boiro to Gabrovo | 1,724.60 mi (2,775.48 km) |
| Boiro to Gorna Oryahovitsa | 1,739.23 mi (2,799.02 km) |
| Boiro to Gotse Delchev | 1,664.01 mi (2,677.97 km) |
| Boiro to Harmanli | 1,766.69 mi (2,843.21 km) |
| Boiro to Haskovo | 1,750.02 mi (2,816.39 km) |
| Boiro to Ihtiman | 1,654.99 mi (2,663.45 km) |
| Boiro to Isperih | 1,787.77 mi (2,877.14 km) |
| Boiro to Kardzhali | 1,744.62 mi (2,807.69 km) |
