| Cities | Distance |
|---|---|
| Regen to Devnya | 795.69 mi (1,280.55 km) |
| Regen to Dimitrovgrad | 768.26 mi (1,236.40 km) |
| Regen to Dobrich | 793.24 mi (1,276.59 km) |
| Regen to Dospat | 735.51 mi (1,183.69 km) |
| Regen to Dupnitsa | 667.74 mi (1,074.63 km) |
| Regen to Elhovo | 799.96 mi (1,287.41 km) |
| Regen to Etropole | 671.62 mi (1,080.87 km) |
| Regen to Gabrovo | 720.77 mi (1,159.96 km) |
| Regen to Gorna Oryahovitsa | 723.54 mi (1,164.42 km) |
| Regen to Gotse Delchev | 724.73 mi (1,166.34 km) |
| Regen to Harmanli | 785.06 mi (1,263.43 km) |
| Regen to Haskovo | 772.51 mi (1,243.23 km) |
| Regen to Ihtiman | 683.87 mi (1,100.58 km) |
| Regen to Isperih | 745.83 mi (1,200.30 km) |
| Regen to Kardzhali | 778.66 mi (1,253.13 km) |