| Yorba Linda to Popovo | 6,637.34 mi (10,681.76 km) |
| Yorba Linda to Provadia | 6,676.62 mi (10,744.99 km) |
| Yorba Linda to Radnevo | 6,692.97 mi (10,771.30 km) |
| Yorba Linda to Radomir | 6,600.30 mi (10,622.15 km) |
| Yorba Linda to Rakitovo | 6,663.94 mi (10,724.57 km) |
| Yorba Linda to Rakovski | 6,668.91 mi (10,732.58 km) |
| Yorba Linda to Razgrad | 6,633.24 mi (10,675.17 km) |
| Yorba Linda to Razlog | 6,653.38 mi (10,707.58 km) |
| Yorba Linda to Ruse | 6,602.00 mi (10,624.89 km) |
| Yorba Linda to Samokov | 6,629.02 mi (10,668.37 km) |
| Yorba Linda to Sandanski | 6,666.95 mi (10,729.41 km) |
| Yorba Linda to Sevlievo | 6,628.73 mi (10,667.92 km) |
| Yorba Linda to Shumen | 6,658.49 mi (10,715.80 km) |
| Yorba Linda to Silistra | 6,615.81 mi (10,647.11 km) |
| Yorba Linda to Sliven | 6,679.96 mi (10,750.36 km) |
