| Howard to Devnya | 5,194.60 mi (8,359.91 km) |
| Howard to Dimitrovgrad | 5,187.51 mi (8,348.49 km) |
| Howard to Dobrich | 5,185.40 mi (8,345.09 km) |
| Howard to Dospat | 5,157.67 mi (8,300.47 km) |
| Howard to Dupnitsa | 5,089.78 mi (8,191.21 km) |
| Howard to Elhovo | 5,214.84 mi (8,392.47 km) |
| Howard to Etropole | 5,092.31 mi (8,195.28 km) |
| Howard to Gabrovo | 5,136.78 mi (8,266.84 km) |
| Howard to Gorna Oryahovitsa | 5,135.80 mi (8,265.27 km) |
| Howard to Gotse Delchev | 5,146.53 mi (8,282.53 km) |
| Howard to Harmanli | 5,203.85 mi (8,374.79 km) |
| Howard to Haskovo | 5,192.31 mi (8,356.21 km) |
| Howard to Ihtiman | 5,105.75 mi (8,216.91 km) |
| Howard to Isperih | 5,144.33 mi (8,279.00 km) |
| Howard to Kardzhali | 5,199.78 mi (8,368.24 km) |
