| Plainfield to Popovo | 4,824.55 mi (7,764.37 km) |
| Plainfield to Provadia | 4,879.36 mi (7,852.58 km) |
| Plainfield to Radnevo | 4,856.59 mi (7,815.92 km) |
| Plainfield to Radomir | 4,724.30 mi (7,603.02 km) |
| Plainfield to Rakitovo | 4,794.18 mi (7,715.48 km) |
| Plainfield to Rakovski | 4,817.71 mi (7,753.35 km) |
| Plainfield to Razgrad | 4,828.15 mi (7,770.16 km) |
| Plainfield to Razlog | 4,772.82 mi (7,681.11 km) |
| Plainfield to Ruse | 4,793.65 mi (7,714.63 km) |
| Plainfield to Samokov | 4,757.90 mi (7,657.10 km) |
| Plainfield to Sandanski | 4,778.09 mi (7,689.59 km) |
| Plainfield to Sevlievo | 4,793.09 mi (7,713.73 km) |
| Plainfield to Shumen | 4,855.26 mi (7,813.78 km) |
| Plainfield to Silistra | 4,832.94 mi (7,777.87 km) |
| Plainfield to Sliven | 4,856.60 mi (7,815.94 km) |
