| West Carson to Popovo | 6,654.25 mi (10,708.99 km) |
| West Carson to Provadia | 6,693.24 mi (10,771.72 km) |
| West Carson to Radnevo | 6,710.20 mi (10,799.02 km) |
| West Carson to Radomir | 6,618.29 mi (10,651.10 km) |
| West Carson to Rakitovo | 6,681.75 mi (10,753.24 km) |
| West Carson to Rakovski | 6,686.41 mi (10,760.74 km) |
| West Carson to Razgrad | 6,650.04 mi (10,702.20 km) |
| West Carson to Razlog | 6,671.38 mi (10,736.55 km) |
| West Carson to Ruse | 6,618.89 mi (10,652.08 km) |
| West Carson to Samokov | 6,646.89 mi (10,697.14 km) |
| West Carson to Sandanski | 6,685.07 mi (10,758.58 km) |
| West Carson to Sevlievo | 6,646.03 mi (10,695.76 km) |
| West Carson to Shumen | 6,675.22 mi (10,742.73 km) |
| West Carson to Silistra | 6,632.27 mi (10,673.61 km) |
| West Carson to Sliven | 6,696.99 mi (10,777.77 km) |
