| Altus to Devnya | 6,100.86 mi (9,818.38 km) |
| Altus to Dimitrovgrad | 6,094.29 mi (9,807.81 km) |
| Altus to Dobrich | 6,091.43 mi (9,803.20 km) |
| Altus to Dospat | 6,064.30 mi (9,759.56 km) |
| Altus to Dupnitsa | 5,996.37 mi (9,650.23 km) |
| Altus to Elhovo | 6,121.55 mi (9,851.68 km) |
| Altus to Etropole | 5,999.08 mi (9,654.58 km) |
| Altus to Gabrovo | 6,043.52 mi (9,726.11 km) |
| Altus to Gorna Oryahovitsa | 6,042.47 mi (9,724.42 km) |
| Altus to Gotse Delchev | 6,053.07 mi (9,741.47 km) |
| Altus to Harmanli | 6,110.62 mi (9,834.10 km) |
| Altus to Haskovo | 6,099.08 mi (9,815.52 km) |
| Altus to Ihtiman | 6,012.47 mi (9,676.13 km) |
| Altus to Isperih | 6,050.62 mi (9,737.53 km) |
| Altus to Kardzhali | 6,106.54 mi (9,827.53 km) |
