| Rancho Santa Margarita to Devnya | 6,689.79 mi (10,766.17 km) |
| Rancho Santa Margarita to Dimitrovgrad | 6,710.94 mi (10,800.22 km) |
| Rancho Santa Margarita to Dobrich | 6,674.93 mi (10,742.26 km) |
| Rancho Santa Margarita to Dospat | 6,697.01 mi (10,777.80 km) |
| Rancho Santa Margarita to Dupnitsa | 6,632.58 mi (10,674.11 km) |
| Rancho Santa Margarita to Elhovo | 6,728.58 mi (10,828.60 km) |
| Rancho Santa Margarita to Etropole | 6,622.72 mi (10,658.24 km) |
| Rancho Santa Margarita to Gabrovo | 6,655.35 mi (10,710.75 km) |
| Rancho Santa Margarita to Gorna Oryahovitsa | 6,648.74 mi (10,700.11 km) |
| Rancho Santa Margarita to Gotse Delchev | 6,690.24 mi (10,766.91 km) |
| Rancho Santa Margarita to Harmanli | 6,725.64 mi (10,823.87 km) |
| Rancho Santa Margarita to Haskovo | 6,717.05 mi (10,810.05 km) |
| Rancho Santa Margarita to Ihtiman | 6,641.20 mi (10,687.98 km) |
| Rancho Santa Margarita to Isperih | 6,641.77 mi (10,688.90 km) |
| Rancho Santa Margarita to Kardzhali | 6,728.75 mi (10,828.88 km) |
