| California to Devnya | 5,072.61 mi (8,163.57 km) |
| California to Dimitrovgrad | 5,041.30 mi (8,113.19 km) |
| California to Dobrich | 5,068.53 mi (8,157.02 km) |
| California to Dospat | 4,998.20 mi (8,043.82 km) |
| California to Dupnitsa | 4,929.67 mi (7,933.54 km) |
| California to Elhovo | 5,076.11 mi (8,169.21 km) |
| California to Etropole | 4,943.50 mi (7,955.79 km) |
| California to Gabrovo | 4,996.84 mi (8,041.64 km) |
| California to Gorna Oryahovitsa | 5,000.85 mi (8,048.10 km) |
| California to Gotse Delchev | 4,983.42 mi (8,020.05 km) |
| California to Harmanli | 5,058.47 mi (8,140.82 km) |
| California to Haskovo | 5,044.74 mi (8,118.72 km) |
| California to Ihtiman | 4,951.82 mi (7,969.18 km) |
| California to Isperih | 5,022.43 mi (8,082.82 km) |
| California to Kardzhali | 5,048.14 mi (8,124.20 km) |
