| Reston to Popovo | 5,017.38 mi (8,074.69 km) |
| Reston to Provadia | 5,072.06 mi (8,162.70 km) |
| Reston to Radnevo | 5,049.67 mi (8,126.66 km) |
| Reston to Radomir | 4,917.61 mi (7,914.12 km) |
| Reston to Rakitovo | 4,987.48 mi (8,026.57 km) |
| Reston to Rakovski | 5,010.89 mi (8,064.25 km) |
| Reston to Razgrad | 5,020.89 mi (8,080.35 km) |
| Reston to Razlog | 4,966.18 mi (7,992.29 km) |
| Reston to Ruse | 4,986.39 mi (8,024.82 km) |
| Reston to Samokov | 4,951.20 mi (7,968.18 km) |
| Reston to Sandanski | 4,971.49 mi (8,000.84 km) |
| Reston to Sevlievo | 4,986.13 mi (8,024.39 km) |
| Reston to Shumen | 5,048.00 mi (8,123.98 km) |
| Reston to Silistra | 5,025.41 mi (8,087.62 km) |
| Reston to Sliven | 5,049.56 mi (8,126.48 km) |
