| Altoona to Devnya | 5,043.84 mi (8,117.28 km) |
| Altoona to Dimitrovgrad | 5,018.55 mi (8,076.57 km) |
| Altoona to Dobrich | 5,038.46 mi (8,108.63 km) |
| Altoona to Dospat | 4,978.68 mi (8,012.41 km) |
| Altoona to Dupnitsa | 4,910.08 mi (7,902.01 km) |
| Altoona to Elhovo | 5,051.57 mi (8,129.72 km) |
| Altoona to Etropole | 4,921.07 mi (7,919.69 km) |
| Altoona to Gabrovo | 4,972.34 mi (8,002.21 km) |
| Altoona to Gorna Oryahovitsa | 4,975.10 mi (8,006.65 km) |
| Altoona to Gotse Delchev | 4,964.78 mi (7,990.04 km) |
| Altoona to Harmanli | 5,035.56 mi (8,103.96 km) |
| Altoona to Haskovo | 5,022.34 mi (8,082.68 km) |
| Altoona to Ihtiman | 4,930.72 mi (7,935.23 km) |
| Altoona to Isperih | 4,993.47 mi (8,036.21 km) |
| Altoona to Kardzhali | 5,026.79 mi (8,089.84 km) |
