| Howard to Popovo | 5,142.89 mi (8,276.68 km) |
| Howard to Provadia | 5,191.86 mi (8,355.49 km) |
| Howard to Radnevo | 5,186.26 mi (8,346.48 km) |
| Howard to Radomir | 5,069.63 mi (8,158.78 km) |
| Howard to Rakitovo | 5,137.94 mi (8,268.72 km) |
| Howard to Rakovski | 5,153.38 mi (8,293.57 km) |
| Howard to Razgrad | 5,143.09 mi (8,277.00 km) |
| Howard to Razlog | 5,121.19 mi (8,241.76 km) |
| Howard to Ruse | 5,109.34 mi (8,222.68 km) |
| Howard to Samokov | 5,101.60 mi (8,210.23 km) |
| Howard to Sandanski | 5,130.42 mi (8,256.61 km) |
| Howard to Sevlievo | 5,121.16 mi (8,241.71 km) |
| Howard to Shumen | 5,169.93 mi (8,320.19 km) |
| Howard to Silistra | 5,138.02 mi (8,268.84 km) |
| Howard to Sliven | 5,180.37 mi (8,337.00 km) |
