| Bootle to Popovo | 1,496.49 mi (2,408.37 km) |
| Bootle to Provadia | 1,551.19 mi (2,496.40 km) |
| Bootle to Radnevo | 1,530.46 mi (2,463.03 km) |
| Bootle to Radomir | 1,403.93 mi (2,259.40 km) |
| Bootle to Rakitovo | 1,473.26 mi (2,370.98 km) |
| Bootle to Rakovski | 1,493.34 mi (2,403.29 km) |
| Bootle to Razgrad | 1,499.97 mi (2,413.97 km) |
| Bootle to Razlog | 1,454.37 mi (2,340.58 km) |
| Bootle to Ruse | 1,465.47 mi (2,358.44 km) |
| Bootle to Samokov | 1,436.81 mi (2,312.32 km) |
| Bootle to Sandanski | 1,462.16 mi (2,353.12 km) |
| Bootle to Sevlievo | 1,466.38 mi (2,359.91 km) |
| Bootle to Shumen | 1,527.08 mi (2,457.59 km) |
| Bootle to Silistra | 1,505.50 mi (2,422.86 km) |
| Bootle to Sliven | 1,529.20 mi (2,461.02 km) |
