| Cayey to Devnya | 5,550.75 mi (8,933.07 km) |
| Cayey to Dimitrovgrad | 5,475.59 mi (8,812.10 km) |
| Cayey to Dobrich | 5,557.00 mi (8,943.13 km) |
| Cayey to Dospat | 5,410.97 mi (8,708.12 km) |
| Cayey to Dupnitsa | 5,348.66 mi (8,607.84 km) |
| Cayey to Elhovo | 5,521.34 mi (8,885.74 km) |
| Cayey to Etropole | 5,383.23 mi (8,663.48 km) |
| Cayey to Gabrovo | 5,448.20 mi (8,768.03 km) |
| Cayey to Gorna Oryahovitsa | 5,461.51 mi (8,789.45 km) |
| Cayey to Gotse Delchev | 5,390.61 mi (8,675.34 km) |
| Cayey to Harmanli | 5,492.55 mi (8,839.40 km) |
| Cayey to Haskovo | 5,475.99 mi (8,812.75 km) |
| Cayey to Ihtiman | 5,380.58 mi (8,659.21 km) |
| Cayey to Isperih | 5,506.06 mi (8,861.14 km) |
| Cayey to Kardzhali | 5,471.00 mi (8,804.73 km) |
