| Ashtabula to Devnya | 5,069.44 mi (8,158.47 km) |
| Ashtabula to Dimitrovgrad | 5,049.29 mi (8,126.04 km) |
| Ashtabula to Dobrich | 5,062.96 mi (8,148.05 km) |
| Ashtabula to Dospat | 5,012.21 mi (8,066.37 km) |
| Ashtabula to Dupnitsa | 4,943.67 mi (7,956.07 km) |
| Ashtabula to Elhovo | 5,080.75 mi (8,176.68 km) |
| Ashtabula to Etropole | 4,952.26 mi (7,969.89 km) |
| Ashtabula to Gabrovo | 5,001.69 mi (8,049.44 km) |
| Ashtabula to Gorna Oryahovitsa | 5,003.39 mi (8,052.18 km) |
| Ashtabula to Gotse Delchev | 4,999.07 mi (8,045.23 km) |
| Ashtabula to Harmanli | 5,066.15 mi (8,153.18 km) |
| Ashtabula to Haskovo | 5,053.38 mi (8,132.62 km) |
| Ashtabula to Ihtiman | 4,963.01 mi (7,987.20 km) |
| Ashtabula to Isperih | 5,018.99 mi (8,077.28 km) |
| Ashtabula to Kardzhali | 5,058.70 mi (8,141.20 km) |
