| Perris to Popovo | 6,629.91 mi (10,669.81 km) |
| Perris to Provadia | 6,669.57 mi (10,733.64 km) |
| Perris to Radnevo | 6,685.16 mi (10,758.72 km) |
| Perris to Radomir | 6,591.52 mi (10,608.02 km) |
| Perris to Rakitovo | 6,655.39 mi (10,710.81 km) |
| Perris to Rakovski | 6,660.75 mi (10,719.45 km) |
| Perris to Razgrad | 6,625.96 mi (10,663.45 km) |
| Perris to Razlog | 6,644.59 mi (10,693.43 km) |
| Perris to Ruse | 6,594.60 mi (10,612.99 km) |
| Perris to Samokov | 6,620.38 mi (10,654.48 km) |
| Perris to Sandanski | 6,658.00 mi (10,715.01 km) |
| Perris to Sevlievo | 6,620.83 mi (10,655.20 km) |
| Perris to Shumen | 6,651.29 mi (10,704.21 km) |
| Perris to Silistra | 6,608.94 mi (10,636.07 km) |
| Perris to Sliven | 6,672.39 mi (10,738.17 km) |
