| Palm River-Clair Mel to Popovo | 5,756.56 mi (9,264.28 km) |
| Palm River-Clair Mel to Provadia | 5,813.49 mi (9,355.91 km) |
| Palm River-Clair Mel to Radnevo | 5,782.70 mi (9,306.36 km) |
| Palm River-Clair Mel to Radomir | 5,643.94 mi (9,083.05 km) |
| Palm River-Clair Mel to Rakitovo | 5,713.77 mi (9,195.43 km) |
| Palm River-Clair Mel to Rakovski | 5,741.24 mi (9,239.64 km) |
| Palm River-Clair Mel to Razgrad | 5,761.71 mi (9,272.57 km) |
| Palm River-Clair Mel to Razlog | 5,690.22 mi (9,157.52 km) |
| Palm River-Clair Mel to Ruse | 5,727.23 mi (9,217.08 km) |
| Palm River-Clair Mel to Samokov | 5,677.99 mi (9,137.84 km) |
| Palm River-Clair Mel to Sandanski | 5,693.25 mi (9,162.40 km) |
| Palm River-Clair Mel to Sevlievo | 5,720.75 mi (9,206.65 km) |
| Palm River-Clair Mel to Shumen | 5,788.64 mi (9,315.92 km) |
| Palm River-Clair Mel to Silistra | 5,770.92 mi (9,287.40 km) |
| Palm River-Clair Mel to Sliven | 5,785.63 mi (9,311.07 km) |
