| Rancho Santa Margarita to Popovo | 6,649.10 mi (10,700.70 km) |
| Rancho Santa Margarita to Provadia | 6,688.59 mi (10,764.24 km) |
| Rancho Santa Margarita to Radnevo | 6,704.53 mi (10,789.90 km) |
| Rancho Santa Margarita to Radomir | 6,611.33 mi (10,639.91 km) |
| Rancho Santa Margarita to Rakitovo | 6,675.10 mi (10,742.54 km) |
| Rancho Santa Margarita to Rakovski | 6,680.29 mi (10,750.89 km) |
| Rancho Santa Margarita to Razgrad | 6,645.09 mi (10,694.23 km) |
| Rancho Santa Margarita to Razlog | 6,664.41 mi (10,725.33 km) |
| Rancho Santa Margarita to Ruse | 6,613.78 mi (10,643.86 km) |
| Rancho Santa Margarita to Samokov | 6,640.13 mi (10,686.26 km) |
| Rancho Santa Margarita to Sandanski | 6,677.89 mi (10,747.02 km) |
| Rancho Santa Margarita to Sevlievo | 6,640.25 mi (10,686.44 km) |
| Rancho Santa Margarita to Shumen | 6,670.37 mi (10,734.93 km) |
| Rancho Santa Margarita to Silistra | 6,627.87 mi (10,666.53 km) |
| Rancho Santa Margarita to Sliven | 6,691.65 mi (10,769.17 km) |
