| Cheyenne to Popovo | 5,853.30 mi (9,419.98 km) |
| Cheyenne to Provadia | 5,896.92 mi (9,490.18 km) |
| Cheyenne to Radnevo | 5,904.14 mi (9,501.80 km) |
| Cheyenne to Radomir | 5,801.01 mi (9,335.82 km) |
| Cheyenne to Rakitovo | 5,866.92 mi (9,441.89 km) |
| Cheyenne to Rakovski | 5,876.26 mi (9,456.93 km) |
| Cheyenne to Razgrad | 5,850.99 mi (9,416.26 km) |
| Cheyenne to Razlog | 5,853.75 mi (9,420.70 km) |
| Cheyenne to Ruse | 5,818.49 mi (9,363.96 km) |
| Cheyenne to Samokov | 5,831.22 mi (9,384.44 km) |
| Cheyenne to Sandanski | 5,865.61 mi (9,439.78 km) |
| Cheyenne to Sevlievo | 5,839.16 mi (9,397.22 km) |
| Cheyenne to Shumen | 5,877.07 mi (9,458.22 km) |
| Cheyenne to Silistra | 5,838.66 mi (9,396.41 km) |
| Cheyenne to Sliven | 5,894.03 mi (9,485.53 km) |
