| Harborne to Popovo | 1,436.81 mi (2,312.32 km) |
| Harborne to Provadia | 1,492.53 mi (2,401.99 km) |
| Harborne to Radnevo | 1,468.35 mi (2,363.08 km) |
| Harborne to Radomir | 1,338.85 mi (2,154.67 km) |
| Harborne to Rakitovo | 1,408.45 mi (2,266.69 km) |
| Harborne to Rakovski | 1,430.10 mi (2,301.53 km) |
| Harborne to Razgrad | 1,441.00 mi (2,319.07 km) |
| Harborne to Razlog | 1,388.68 mi (2,234.87 km) |
| Harborne to Ruse | 1,406.48 mi (2,263.51 km) |
| Harborne to Samokov | 1,372.04 mi (2,208.08 km) |
| Harborne to Sandanski | 1,395.73 mi (2,246.20 km) |
| Harborne to Sevlievo | 1,404.74 mi (2,260.72 km) |
| Harborne to Shumen | 1,468.06 mi (2,362.61 km) |
| Harborne to Silistra | 1,448.65 mi (2,331.37 km) |
| Harborne to Sliven | 1,468.29 mi (2,362.98 km) |
