| Cottonwood to Popovo | 6,435.60 mi (10,357.09 km) |
| Cottonwood to Provadia | 6,478.00 mi (10,425.33 km) |
| Cottonwood to Radnevo | 6,487.82 mi (10,441.13 km) |
| Cottonwood to Radomir | 6,387.29 mi (10,279.35 km) |
| Cottonwood to Rakitovo | 6,452.70 mi (10,384.61 km) |
| Cottonwood to Rakovski | 6,460.93 mi (10,397.87 km) |
| Cottonwood to Razgrad | 6,432.77 mi (10,352.54 km) |
| Cottonwood to Razlog | 6,440.15 mi (10,364.43 km) |
| Cottonwood to Ruse | 6,400.61 mi (10,300.78 km) |
| Cottonwood to Samokov | 6,417.16 mi (10,327.43 km) |
| Cottonwood to Sandanski | 6,452.42 mi (10,384.17 km) |
| Cottonwood to Sevlievo | 6,422.98 mi (10,336.79 km) |
| Cottonwood to Shumen | 6,458.63 mi (10,394.16 km) |
| Cottonwood to Silistra | 6,418.91 mi (10,330.24 km) |
| Cottonwood to Sliven | 6,476.90 mi (10,423.56 km) |
