| Spencer to Devnya | 5,498.39 mi (8,848.80 km) |
| Spencer to Dimitrovgrad | 5,497.86 mi (8,847.95 km) |
| Spencer to Dobrich | 5,487.82 mi (8,831.80 km) |
| Spencer to Dospat | 5,471.63 mi (8,805.74 km) |
| Spencer to Dupnitsa | 5,404.30 mi (8,697.38 km) |
| Spencer to Elhovo | 5,523.04 mi (8,888.47 km) |
| Spencer to Etropole | 5,403.91 mi (8,696.75 km) |
| Spencer to Gabrovo | 5,445.77 mi (8,764.13 km) |
| Spencer to Gorna Oryahovitsa | 5,443.47 mi (8,760.42 km) |
| Spencer to Gotse Delchev | 5,461.47 mi (8,789.39 km) |
| Spencer to Harmanli | 5,513.88 mi (8,873.74 km) |
| Spencer to Haskovo | 5,502.98 mi (8,856.19 km) |
| Spencer to Ihtiman | 5,418.59 mi (8,720.38 km) |
| Spencer to Isperih | 5,448.41 mi (8,768.37 km) |
| Spencer to Kardzhali | 5,511.48 mi (8,869.86 km) |
