| Sunbury to Popovo | 1,356.18 mi (2,182.56 km) |
| Sunbury to Provadia | 1,412.86 mi (2,273.79 km) |
| Sunbury to Radnevo | 1,385.20 mi (2,229.26 km) |
| Sunbury to Radomir | 1,252.90 mi (2,016.35 km) |
| Sunbury to Rakitovo | 1,322.70 mi (2,128.68 km) |
| Sunbury to Rakovski | 1,345.87 mi (2,165.97 km) |
| Sunbury to Razgrad | 1,361.10 mi (2,190.48 km) |
| Sunbury to Razlog | 1,302.09 mi (2,095.50 km) |
| Sunbury to Ruse | 1,326.61 mi (2,134.98 km) |
| Sunbury to Samokov | 1,286.36 mi (2,070.19 km) |
| Sunbury to Sandanski | 1,308.40 mi (2,105.67 km) |
| Sunbury to Sevlievo | 1,322.16 mi (2,127.81 km) |
| Sunbury to Shumen | 1,388.06 mi (2,233.87 km) |
| Sunbury to Silistra | 1,370.95 mi (2,206.34 km) |
| Sunbury to Sliven | 1,386.34 mi (2,231.11 km) |
