| Irondale to Devnya | 5,705.77 mi (9,182.56 km) |
| Irondale to Dimitrovgrad | 5,679.72 mi (9,140.62 km) |
| Irondale to Dobrich | 5,700.47 mi (9,174.02 km) |
| Irondale to Dospat | 5,639.15 mi (9,075.33 km) |
| Irondale to Dupnitsa | 5,570.55 mi (8,964.93 km) |
| Irondale to Elhovo | 5,713.05 mi (9,194.26 km) |
| Irondale to Etropole | 5,582.16 mi (8,983.62 km) |
| Irondale to Gabrovo | 5,633.80 mi (9,066.72 km) |
| Irondale to Gorna Oryahovitsa | 5,636.73 mi (9,071.45 km) |
| Irondale to Gotse Delchev | 5,625.03 mi (9,052.60 km) |
| Irondale to Harmanli | 5,696.77 mi (9,168.06 km) |
| Irondale to Haskovo | 5,683.45 mi (9,146.62 km) |
| Irondale to Ihtiman | 5,591.54 mi (8,998.72 km) |
| Irondale to Isperih | 5,655.41 mi (9,101.50 km) |
| Irondale to Kardzhali | 5,687.69 mi (9,153.45 km) |
