| Riverdale to Devnya | 5,617.04 mi (9,039.75 km) |
| Riverdale to Dimitrovgrad | 5,588.01 mi (8,993.03 km) |
| Riverdale to Dobrich | 5,612.39 mi (9,032.27 km) |
| Riverdale to Dospat | 5,545.88 mi (8,925.23 km) |
| Riverdale to Dupnitsa | 5,477.32 mi (8,814.89 km) |
| Riverdale to Elhovo | 5,622.21 mi (9,048.07 km) |
| Riverdale to Etropole | 5,490.28 mi (8,835.76 km) |
| Riverdale to Gabrovo | 5,542.93 mi (8,920.49 km) |
| Riverdale to Gorna Oryahovitsa | 5,546.48 mi (8,926.20 km) |
| Riverdale to Gotse Delchev | 5,531.34 mi (8,901.83 km) |
| Riverdale to Harmanli | 5,605.13 mi (9,020.58 km) |
| Riverdale to Haskovo | 5,591.56 mi (8,998.75 km) |
| Riverdale to Ihtiman | 5,499.03 mi (8,849.83 km) |
| Riverdale to Isperih | 5,566.76 mi (8,958.84 km) |
| Riverdale to Kardzhali | 5,595.30 mi (9,004.76 km) |
