| Fountain Valley to Devnya | 6,693.31 mi (10,771.84 km) |
| Fountain Valley to Dimitrovgrad | 6,715.13 mi (10,806.95 km) |
| Fountain Valley to Dobrich | 6,678.33 mi (10,747.73 km) |
| Fountain Valley to Dospat | 6,701.60 mi (10,785.19 km) |
| Fountain Valley to Dupnitsa | 6,637.30 mi (10,681.70 km) |
| Fountain Valley to Elhovo | 6,732.52 mi (10,834.94 km) |
| Fountain Valley to Etropole | 6,627.13 mi (10,665.33 km) |
| Fountain Valley to Gabrovo | 6,659.45 mi (10,717.34 km) |
| Fountain Valley to Gorna Oryahovitsa | 6,652.71 mi (10,706.50 km) |
| Fountain Valley to Gotse Delchev | 6,694.95 mi (10,774.48 km) |
| Fountain Valley to Harmanli | 6,729.77 mi (10,830.53 km) |
| Fountain Valley to Haskovo | 6,721.27 mi (10,816.83 km) |
| Fountain Valley to Ihtiman | 6,645.73 mi (10,695.27 km) |
| Fountain Valley to Isperih | 6,645.38 mi (10,694.70 km) |
| Fountain Valley to Kardzhali | 6,733.07 mi (10,835.83 km) |
